The acceleration of a baseball after it is hit by a bat depends on the mass of the ball and the net force on the
ball. This example best illustrates what law?
A.Newton's first law of motion
B.Newton's second law of motion
C.Newton's third law of motion
D.Newton's law of universal gravitation
Answers
Answer:
B. Newton's second law of motion
Explanation:
Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.
Mathematically, it is given by the formula;
\( Net \; Force = mass * acceleration \)
Making acceleration the subject of formula, we have;
\( Acceleration = \frac {Net \; Force}{Mass} \)
In this scenario, the acceleration of a baseball after it is hit by a bat depends on the mass of the ball and the net force on the ball. Thus, this example best illustrates Newton's second law of motion.
Related Questions
Explain how the visible light spectrum is a spectrum within a spectrum.
Answers
Answer:
In the visible spectrum of light, the color of the light depends on the frequency. The visible spectrum is always the same for a rainbow or the separated light from a prism. The order of colors is red, orange, yellow, green, blue, indigo, and violet.
Explanation:
A 100 Hz wave and a 200 Hz wave travel through the same medium. Which wave has the longer wavelength? Why? Which one travels at a greater speed?
Answers
Explanation:
100Hz wave have longer wavelength and hence more speed
what initial mass of uranium would have to undergo fission to supply the electrical needs of sich a house for a year
Answers
About 0.1% of the initial mass of 92U235 is transformed into energy during fission. The quantity of 92U235 that must fission each day in a nuclear reactor for it to produce 200 megawatts of electricity is then: Q.
What occurs when nuclear fission of uranium produces electricity?A neutron divides a uranium atom when it interacts with it during nuclear fission, releasing a significant quantity of energy in the form of heat and radiation. When a uranium atom divides, additional neutrons are also emitted. The process keeps repeating again as these neutrons keep crashing into more uranium atoms.
It is possible to utilize the energy created by the fission of uranium or plutonium to create electricity, power spacecraft, and more.
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A short horizontal line leads to a small circle, which then has a longer line point up at about 45 degrees. A gap in the horizontal line that led to the circle ends with another small circle and then a short horizontal line segment. In a circuit diagram, what does this symbol represent? a resistor a light bulb a battery a switch. and the answer is D!!!!!!
Answers
Answer:
the answer is D
Explanation:
Answer:
The answer is D
Explanation:
yes
How far will you travel if you fly at 100 miles per hour for 2 hours and 30 minutes?
Answers
If you fly at 100 miles per hour for a time of 2 hours and 30 minutes you will be a: 250 miles far
The formula and procedure we will use to solve this exercise is:
x = v * t
Where:
x = distancet = timev = velocityInformation about the problem:
v = 100 miles/ht = 2,5 h x=?Applying the distance formula we have that:
x = v * t
x= 100 miles/h * 2,5 h
x = 250 miles
What is velocity?It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).
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republicans tend to favor more control by the federal government, while democrats generally support more control by the people and states
Answers
The statement seems to have a mix-up. To clarify, Republicans typically favor less control by the federal government and more control by the people and states, while Democrats generally support a stronger federal government. Here's a brief explanation of their stances:
1. Republicans: They believe in limited government intervention in individuals' lives and emphasize the importance of states' rights. This often includes supporting policies such as lower taxes, fewer regulations, and decentralized decision-making. Republicans argue that these policies promote economic growth, individual liberties, and greater autonomy for states to address their unique issues.
2. Democrats: They advocate for a more active role of the federal government in regulating various aspects of society, such as healthcare, education, and environmental protection. Democrats argue that a strong central government is necessary to ensure equal opportunities for all citizens and to provide essential services. They believe that certain issues, such as climate change and social justice, require a unified approach and cannot be effectively tackled by individual states alone.
In summary, Republicans generally support more control by the people and states, while Democrats tend to favor a stronger federal government. This distinction reflects their differing views on the most effective way to address societal issues and promote prosperity.
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Study the velocity vs. time graph shown.
A graph titled Velocity versus Time shows time in seconds on the x axis, numbered 0 to 6, velocity in meters per second on the y axis, numbered 0 to 9. A line starts at (0, 2) and ends at (6, 8).
What is the displacement of the object from 2 seconds to 6 seconds?
Answers
For velocity vs Time graphs, the displacement of the object from 2 seconds to 6 seconds is 30 m.
What is displacement?The displacement is the shortest distance travelled by the particle. It is the vector quantity which re[presents both the magnitude and direction.
In velocity time graphs, the displacement is the area under the curve of the graph on the x axis.
'
A line starts at (0, 2) and ends at (6, 8) in v-t graph
Displacement is equal to the area of a triangle and a rectangle formed under the line.
Area = 1/2 base x height + length x breadth
Area = 1/2 x 6x 6 + 6x2
Area = 18 +12
Area = 30 m
Thus, the displacement is 30 m.
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Un hombre de pie puede ejercer la misma fuerza con sus piernas tanto en la tierra como en la luna. Sabemos que la masa del hombre es la misma en la Tierra y en la Luna. También sabemos que F=m x a (masa x aceleración, corresponde a la 2° Ley de Newton), es verdad tanto en la Tierra y la Luna. ¿Será el hombre capaz de saltar más alto en la Luna que en la Tierra? ¿Por qué o por qué no?
Answers
Answer:
The height jumped by the person on the moon is 6 times the height jumped by the person on earth.
Explanation:
As we know that the acceleration due to gravity on moon is 1/6 of the acceleration due to gravity on earth.
So, it is false.
Let the mass of man is m and the gravity on moon is g' = g/6.
Let the height jumped on earth is h and the height jumped on moon is h'.
So,
m x g' x h' = m x g x h
g/6 x h' = g x h
h' = 6 h
So, the height jumped by the person is 6 times the height jumped by the person on earth.
a fisherman throws the iron anchor from his floating boat into the lake. does the level of the lake rise, fall, or stay unchanged?
Answers
When the fisherman throws the iron anchor from his floating boat into the lake the level of the pond falls.
With the introduction of the "CQR," created by Scottish inventor Geoffrey Ingram Taylor in the early 1930s, modern boat anchor development has progressed rather independently from that of the first half of the 20th century. Since this design was asymmetrical, bow rollers had to be used to efficiently stow it. This works well for small yachts and boats, but it doesn't scale well for huge cargo. Lewmar is now the company producing the CQR.In the 1940s, American Richard Danforth created and refined the "Danforth" pattern, a nod to symmetry but with very broad flat plate flukes. This anchor performs poorly in other areas but has very good holding power for its weight (high efficiency), making it ineffective.
While the anchor is in the boat, its weight displaces a volume of water V1 equal in weight to the anchor (by Archimedes' principle). After being thrown overboard, the sunken anchor displaces a lesser volume of water V2, equal in volume to the anchor.
V2 is less than V1 because the anchor is denser than water (otherwise it would not sink!) So, with less water displaced, the level of the lake falls.
Therefore, When the fisherman throws the iron anchor from his floating boat into the lake the level of the pond falls.
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A red car travels 120 km in one hour. A blue car travels 130 km in
the same time. Which car has the greater average speed?
Answers
Answer:
blue
Explanation: because blue takes more then way from red
V(average) = X*t this is formulafor red for blue
x=120 km 130 km
v=120km/h 130 km/h
t=1h 1h
Jupiter, the largest planet in the solar system, has an equatorial radius of about 7.1 x 10^4km (more than 10 times that of Earth). Its period of rotation, however, is only 9h, 50 min. That means that every point on Jupiter's equator "goes around the planet" in that interval of time. Calculate the average speed (in m/s) of an equatorial point during one period of Jupiter's rotation. Is the average velocity different from the average speed in this case?
Answers
Answer:
The average speed is \(v = 1260 \ km/s\)
The average speed is different from the average velocity in this question
Explanation:
From the question we are told that
The equatorial radius of Jupiter is \(R_j = 7.1*10^{4} \ km\)
The period of oscillation of Jupiter is \(T_J = 9 \ hours , 50 \ min = 35400 \ seconds\)
Generally the average speed is mathematically represented as
\(v = \frac{2 \pi * R_j }{T_J}\)
=> \(v = \frac{2 *3.142 * 7.1*10^{4} }{35400}\)
=> \(v = 1260 \ km/s\)
Generally in average speed the direction is not considered while in average velocity the direction is considered for the case of this question the movement equitorial point has no direction in that it start from one point and after its periodic motion it still remains at that point
Look at the circuit diagram.
What type of circuit is shown?
open series circuit
open parallel circuit
closed series circuit
closed parallel circuit
Answers
The type of circuit shown in the diagram is a closed series circuit. The Option C.
What type of circuit is depicted in the circuit diagram?The circuit diagram illustrates a closed series circuit, where the components are connected in a series, forming a single loop. In a closed series circuit, the current flows through each component in sequence, meaning that the current passing through one component is the same as the current passing through the other components.
The flow of current is uninterrupted since the circuit forms a complete loop with no breaks or open paths. Therefore, the correct answer is a closed series circuit.
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Two identical speakers are 3.50 m
and 5.20 m from a listener. What is
the lowest frequency (n = 0) that
would cause destructive
interference there?
(Unit = Hz)
Answers
Answer:
The difference in distance from the speakers is 5.2 - 3.5 = 1.7 m
The listener would be 1/2 wavelength out of phase with the speakers
1/2 y = 1.7 m where y is the wavelength
y = 3.4 m the required wavelength
f = v / y = 340 m/s / 3.4 m = 100 / sec lowest frequency
Answer:
100.8
Explanation:
Trust :)
a lion is running at constant speed toward a gazelle that is standing still, as shown in the top figure above. after several seconds, the gazelle notices the lion and accelerates directly toward him, hoping to pass the lion and force him to reverse direction. as the gazelle accelerates toward and past the lion, the lion changes direction and accelerates in pursuit of the gazelle. the lion and the gazelle eventually each reach constant but different speeds. which of the following sets of graphs shows a reasonable representation of the velocities of the lion and the gazelle as functions of time?
Answers
The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.
Velocity is the rate of change of displacement over time.
It has SI units as m/s.The total amount of movement of an object per unit time is also called velocity. It depends on both the size and direction of the moving object.Velocity can also be called as speed when distance is taken into consideration instead of displacement.As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.
So option A is correct.
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A gannet is a seabird that fishes by diving from a great height. You may want to review If a gannet hits the water at 32 m/s, what height did it dive from? Assume that the gannet was motionless before starting its dive. Express your answer to two significant figures and include the appropriate units. h =
Answers
After considering the given data the height from which the gannet dived is approximately 51.84 m.
To evaluate the height from which a gannet dived if it hits the water at 32 m/s, assuming that the gannet was motionless before starting its dive, we can apply the law of conservation of energy, which projects that the initial potential energy of the gannet is equivalent to its final kinetic energy prior to hitting the water. Then, we can write:
\(mgh = (1/2)mv^2\)
Here:
m = mass of the gannet
g = acceleration due to gravity
h = height from which the gannet dived
v = velocity of the gannet just before hitting the water
Considering that the mass of the gannet is 1 kg, and applying substitution of the given values, we get:
\((1 kg)(9.8 m/s^2)(h) = (1/2)(1 kg)(32 m/s)^2\)
\(h = (1/2)(32 m/s)^2 / (9.8 m/s^2)\)
h = 51.84 m
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The complete question is
A gannet is a seabird that fishes by diving from a great height. If a gannet hits the water at 32 m/s , what height did it dive from? Assume that the gannet was motionless before starting its dive.
A Porsche challenges a Honda to a 400 m race. Because the Porsche’s acceleration is 3.50 m/s2 is larger than the Honda’s 3.00 m/s2 , the Honda gets a 1.00 s head start. Who wins? By how many seconds?
Answers
Answer:
There are a couple of ways to do this.
(i) Set up the two kinematics equations:
Honda: s = ½at² = ½ * 3m/s² * t² = 1.5m/s² * t²
Porsche: S = ½ * 3.5m/s² * (t - 1s)² = 1.75m/s² * (t - 1s)²
When does s = S ? Dropping units for ease,
1.5t² = 1.75(t-1)²
which is quadratic and has solutions at t = 0.5 s → which is no good, since it would leave the porsche with -0.5 s, which isn't possible, and
t = 13.5 s
When they've gone the same distance, they've gone
d = 1.5m/s² * (13.5s)² = 273 meters
The Porsche wins easily. ◄
Want to make it interesting? Give the Honda 1¼ seconds.
Then t = 16.85 s
and x = 1.5m/s² * (16.85s)² = 426 m
and the Honda squeaks out a victory.
You could also just find the time it takes each to go 400 m:
Honda: t = √(2s/a) = √(800m / 3.0m/s²) = 16.3 s
Porsche: T = √(800m / 3.5m/s²) = 15.1 s
Since the Porsche only gives up 1 s at the beginning, it wins by 0.2 s.
Explanation:
The approximate age of the universe is estimated to be:.
Answers
Answer:
about 13.8 billion years old
Which of the following properties of an astronaut changes when he or she is standing on the Moon, relative to when the astronaut is standing on Earth?
a. weight
b. mass
c. inertia
d. Nothing changes.
Answers
When an astronaut is standing on the Moon as opposed to when the astronaut is standing on Earth, the astronaut's weight changes.
Option 1 is appropriate in this scenario.
When an astronaut is standing on the Moon as opposed to when the astronaut is standing on Earth, the astronaut's weight changes. This is so because weight, which is the force of gravity acting on an object, is weaker on the Moon than it is on the Earth due to the Moon's smaller mass.
An astronaut will therefore be lighter on the Moon than they are on Earth. However, the astronaut's mass, which is a gauge of how much matter is in their body, does not change.
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Add an E-W force and a N-S force so the object is at equilibrium.
Add a Force
re
Given: 64.0 N. 128.7°CCW
Tap to learn about CCW
Answers
The addition of vectors allows to find the vector that the equilibrium is
F = (40.02 i ^ - 49.95 j ^) N
Parameters given
Vector value A = 64.0 N and tea = 128.7ºTo find
The vector that allows equilibrium
The force is a vector magnitude so the sum of the force must be done using the methods to add vectors.
One of the easiest methods to perform the addition of vectors is the analytical method where each vector is decomposed in a Cartesian system and the components added using algebraic summation and then the resulting vector is constructed.
We decompose the vector
cos θ = \(\frac{A_x}{A}\)Ax / A
sin θ = \(\frac{A_y}{A}\)
Aₓ = A cos θ
\(A_y\)= A sin θ
Aₓ = 64 cos 128.7
\(A_y\) = 64 sin 128.7
Aₓ = -40.02 N
\(A_y\) = 49.95 N
To find the vector that allows equilibrium, we work each axis independently
X axis
Aₓ + Fₓ = 0
Fₓ = - Aₓ
Fₓ = 40.02 N
Y axis
\(A_y + F_y =0 \\F_y = - A_y\\F_y = - 49.95 N\)
We can write the resulting vector in two ways
1) F = (40.02 i ^ - 49.95 j ^) N
2) in the form of module and angle
Let's find the module with the Pythagoras' Theorem
F =\(\sqrt{F_x} ^2 + F_y^2)\\F = \sqrt{40.02^2 + 49.95^2 }\)
F = 64 N
Angles
tan θ = \(\frac{F_y}{F_x}\)
θ = tan⁻¹ \(\frac{F_y}{F_x}\)
θ = tan⁻¹ \(\frac{-49.95}{40.02}\)
θ = -51.3º
This angle is measured clockwise from the positive side of the x-axis
In conclusion using the sum of vectors we can find the vector that allows the equilibrium is
F = (40.02 i^ - 49.95 j^ ) N
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of the following, which is true of fuel cells? select the correct answer below: the efficiency of fuel cells is typically 80 to 95. the voltage of a hydrogen fuel cell is about 9.0 v. fuel cells are similar to batteries but require a continuous source of fuel. fuel cells often use water as a constant fuel source.
Answers
Of the options given, the correct answer is: the efficiency of fuel cells is typically 80 to 95. Fuel cells are energy conversion devices that generate electricity through the chemical reaction between hydrogen and oxygen.
The efficiency of a fuel cell refers to the ratio of the electrical output to the chemical energy input, and it can vary depending on the type of fuel cell and the operating conditions. However, most fuel cells have an efficiency that is significantly higher than traditional combustion engines, which can be as low as 20%. The voltage of a hydrogen fuel cell is typically around 0.6 to 1.0 volts per cell, and multiple cells can be stacked to achieve higher voltage. Fuel cells do require a continuous source of fuel, but they are not exactly similar to batteries, as batteries store energy while fuel cells produce energy through a chemical reaction. While some fuel cells may use water as a reactant, not all fuel cells require water as a constant fuel source.
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Answer:
Fuel cells are similar to batteries but require a continuous source of fuel.
Explanation:
Fuel cells convert chemical energy into electrical energy. They are similar to batteries but require a continuous source of fuel, often hydrogen. Hydrogen fuel cells have been used to supply power for satellites, space capsules, automobiles, boats, and submarines. In this type of fuel cell, oxygen from the air reacts with hydrogen to produce water and electricity, generating a voltage of about 0.9 V. The efficiency of fuel cells is typically 40 to 60, greater than that of an internal combustion engine.
The following statements that correctly describe the modulus of elasticity, E:
Answers
The modulus of elasticity, E, is a measure of a material's stiffness and ability to resist deformation when a force is applied. It is defined as the ratio of stress to strain within the elastic range of the material. In other words, it describes how much a material will stretch or compress under a given force.
The modulus of elasticity is important because it allows engineers to predict how materials will behave under different conditions, such as temperature changes, loading conditions, and other factors. It also helps to determine the maximum load a material can withstand before it starts to deform or break.
In detail, the modulus of elasticity is a fundamental property of a material that describes its ability to resist deformation when subjected to external forces. It is calculated by measuring the stress and strain of the material and using the equation E = σ/ε, where σ is stress and ε is strain.
The modulus of elasticity is important in many areas of engineering, such as structural design, materials science, and mechanics. It helps to ensure that structures and materials are designed and tested to withstand the loads and stresses they will be subjected to, and it provides a basis for comparing different materials and choosing the best one for a particular application.
In summary, the modulus of elasticity, E, is a material property that describes its stiffness and resistance to deformation. It is correctly determined using Hooke's Law and is crucial for predicting the mechanical behavior of materials when subjected to stress.
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The Round Up carnival ride below has a radius of 3.62 meters and rotates 0.537 times per second. As shown, riders can be held up by only friction. What coefficient of friction is needed to keep the riders from sliding down? Include units in your answer. Answer must be in 3 significant digits.
Answers
The free body diagram for the problem is shown below:
If the people don't slide down this means that the friction has to be equal to the Weight, then we have:
\(\begin{gathered} F_f-W=0 \\ F_f=W \\ \mu F_n=W \\ \mu=\frac{W}{F_n} \end{gathered}\)Now, from newton's second law we have that:
\(F_n=ma_c\)but
\(a_c=\frac{4\pi^2r}{T^2}\)then:
\(F_n=\frac{4\pi^2mr}{T^2}\)And then we have:
\(\begin{gathered} \mu=\frac{mg}{\frac{4\pi^2mr}{T^2}} \\ \mu=\frac{gT^2}{4\pi^2r} \end{gathered}\)Plugging the values given we have:
\(\begin{gathered} \mu=\frac{(9.8)(\frac{1}{0.537})^2}{4\pi^2(3.62)} \\ \mu=0.238 \end{gathered}\)Therefore the coefficient of friction is 0.238
1. What are the effects of weather and climate on the picture?
2. What are 3 potential solutions to the problem in the picture?
3. How could a scientist model the problem and test different solutions to find the most effective fix?
Answers
The effect of weather and climate on the picture is erosion. The 3 potential solutions to the erosion are Planting of a cover crop, Build Terraces, and Create diversions to Help Drainage.
What is erosion?Erosion is defined as the washing away of the topmost portion of the soil which can occur due to natural causes or through the activities of man.
The natural causes of erosion is related to changes in weather and climate through rain, rivers, floods, lakes, and the ocean.
The three potential solutions to the problem of erosion include the following:
Planting of a cover crop: This helps in the prevention of erosion because the cover crops have root systems with different depths which helps the soil to absorb more water and hold the soil surfaceBuilding of Terraces: This helps to prevent erosion by dividing slopes so that surface runoff is intercepted and carried to a protective outlet.Creation of diversions to help drainage.Learn more about erosion here:
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7. What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second?
Answers
Answer:
6Newton meter is the answer.
Explanation:
Mass=m=3kg
Velocity=v=2m/s
Kinetic energy =K.E.=?
As we know that
K.E.=1/2mv^2
Putting the values
K.E.=1/2✖️3kg✖️(2m/s)^2
K.E.=1/2✖️3kg✖️4m^2/s^2
K.E=1/2✖️12Nm
K.E.=6Nm is your answer
Hope it will help you :)
The kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second is E = 6 joules.
To find the Kinetic Energy, the given details are
Mass of the ball, m = 3 kg
Speed of the bag, v = 2 m/s
What is Kinetic Energy?An object with twice as much mass and the same speed will have twice as much kinetic energy, whereas an object with twice as much mass and the same speed will have four times as much kinetic energy.Kinetic energy is the kind of energy an object or particle has because it moves.When a net force is applied to an object, which is work that transfers energy, the object accelerates and gains kinetic energy.A moving object or particle's kinetic energy is a property that is affected by its mass as well as its motion.The energy that is possessed due to the motion of an object is called the kinetic energy of the ball.
Its formula is given by :
E = 1/2 mv²
E = \(\frac{1}{2}\) (3)(2)²
E = 6 joules
So, the kinetic energy of the ball is 6 joules. Hence, this is the required solution.
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What is Newton's 2nd law of motion? *
Your answer
Answers
Answer:
Newton's second law describes the affect of net force and mass upon the acceleration of an object.
F = force
m = mass of an object
a = acceleration
Explanation:
f=m.a
is Babe Ruth?
And can you give me 3-5 sentences about her
Answers
1. Ruth first gained fame as a pitcher.
Although best remembered for swatting a prodigious 714 home runs and slugging .690, which remains a major-league record, Ruth was one of baseball’s most dominant left-handed pitchers in the 1910s. He won 89 games in six seasons with the Boston Red Sox, including 24 in 1917, and helped the team win three World Series titles. Ruth only pitched five games for the New York Yankees as his position switched to outfielder after being sold by Boston before the 1920 season.
2. He did not retire as a New York Yankee.
Ruth’s major-league career not only started in Boston, it ended there as well, but not with the Red Sox. Discarded by the Yankees as his performance waned, Ruth signed with the National League’s Boston Braves in 1935 in the hopes of becoming the team’s manager the following season. When it became clear that his skills had deteriorated and the promise would not be kept, Ruth ended his 22-year career after just 28 games in a Braves uniform.
3. Ruth was not a unanimous choice for the Baseball Hall of Fame.
A year after his retirement, Ruth was among the five initial inductees elected to the new National Baseball Hall of Fame under construction in Cooperstown, New York. In spite of Ruth’s amazing career statistics, 11 of the 226 voters left him off their ballots, and the “Sultan of Swat” trailed Ty Cobb as the leading vote-getter. Ruth’s plaque in Cooperstown refers to him as baseball’s “greatest drawing card,” and proving the point, the Hall of Fame last month opened a new exhibit on Ruth to coincide with the centennial of his first big-league season.
Explanation:
Answer:
He began his career as a pitcher: Ruth was both a left-handed pitcher and left-handed batter.
His father died in a fight with a family member
Ruth played for the Boston Red Sox (1914-1919), the New York Yankees (1920-1934) and briefly the Boston Braves (1935).
Explanation:
also babe ruth is a guy-
What is the mass of a rocket 5,000m above the Moon’s surface if 84kJ
of gravitational potential energy is stored? Assume g on the Moon =
1.63N/kg.
Answers
Considering the definition of potential energy, the mass of a rocket 5,000 m above the Moon’s surface is 10.31 kg.
Potential energyPotential energy is the energy that measures the ability of a system to do work based on its position. In other words, this is the energy that a body located at a certain height above the ground has.
Gravitational potential energy is the energy associated with the gravitational force. This will depend on the relative height of an object to some reference point, the mass, and the strength of gravity. Then, the expression applied to the gravitational energy of the object is:
Ep= m×g×h
Where:
Ep is the potential energy in joules (J).m is the mass in kilograms (kg). h is the height in meters (m).g is the acceleration of the fall in m/s².Mass of the rocketIn this case, you know:
Ep= 84 kJ= 84,000 J (being 1 kJ= 1,000 J)m= ?h= 5,000 mg= 1.63 N/kg= 1.63 m/s²Replacing in the definition of gravitational potential energy:
84,000 J= m×1.63 m/s²×5,000 m
Solving:
84,000 J= m× 8,150 m/s²×m
84,000 J÷ (8,150 m/s²×m)= m
10.31 kg= m
Finally, the mass of a rocket 5,000 m above the Moon’s surface is 10.31 kg.
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Calculate the wavelength of the first harmonic for a guitar string that is 1 meter long:
Answers
For a guitar string that is 1 meter long, the wavelength of the first harmonic is 2 meters.
The formula for calculating the wavelength of the first harmonic for a guitar string is:
Wavelength = 2 * String length / First harmonic
Given that the guitar string is 1 meter long and we want to calculate the wavelength of the first harmonic, we can substitute these values into the formula as follows:
Wavelength = 2 * 1 meter / 1
Wavelength = 2 meters
Therefore, the wavelength of the first harmonic for a guitar string that is 1 meter long is 2 meters.
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Redox reactions include which types of reactions?
A. Single-replacement, double-replacement, acid-base, synthesis
B. Single-replacement, synthesis, decomposition, combustion
C. Acid-base, decomposition, double-replacement, synthesis
O D. Double-replacement, combustion, synthesis, decomposition
Answers
Answer:Single-Replacement, synthesis, decomposition, combustion.
Explanation:
Had to get it wrong to find out
Redox reactions include Single-replacement, synthesis, decomposition, composition Reactions. Hence option B is correct.
What is redox reaction ?Redox reaction is type of reaction in which oxidation number participating molecules changes. Redox reaction involves two types of the reaction oxidation and reduction. these two reaction take place simultaneous. Oxidation is the loss of electrons and reduction is the gain of electrons.
Oxidation is nothing but addition of oxygen and loss of hydrogen and reduction is loss of oxygen and gain of hydrogen.
Redox reactions include Single-replacement, synthesis, decomposition, composition Reactions.
The oxidation half-reaction is: H₂ → 2H⁺ + 2e⁻
The reduction half-reaction is: F₂ + 2e⁻ → 2F⁻
Hence option B is correct.
To know more about redox reaction ;
https://brainly.com/question/13293425
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What is the gain in speed per second for a freely falling object?.
Answers
Objects accelerate at ~9.8 Meters per second per second (9.8 Meters peer sec^2. (or ~32 feet per sec^2 for you non metric guys) As they gain speed they will reach a maximum velocity limited by atmospheric resistance, when the resistance vector equals the gravity vector and all acceleration will cease. In a vacuum the object will continue to accelerate.