Write the equivalent formulas for velocity, acceleration, and force using the relationships covered for UCM, Newton’s Laws, and Gravitation.
Answers
Answer:
The newton’s second law is F=ma
The Gravitational force is \(F=\dfrac{Gm_{1}m_{2}}{r^2}\)
Explanation:
Given that,
The equivalent formulas for velocity, acceleration, and force using the relationships covered for UCM, Newton’s Laws, and Gravitation.
We know that,
Velocity :
The velocity is equal to the rate of position of the object.
\(v=\dfrac{dx}{dt}\)....(I)
Acceleration :
The acceleration is equal to the rate of velocity of the object.
\(a=\dfrac{dv}{dt}\)....(II)
Newton’s second Laws
The force is equal to the change in momentum.
In mathematically,
\(F=\dfrac{d(p)}{dt}\)
Put the value of p
\(F=\dfrac{d(mv)}{dt}\)
\(F=m\dfrac{dv}{dt}\)
Put the value from equation (II)
\(F=ma\)
This is newton’s second laws.
Gravitational force :
The force is equal to the product of mass of objects and divided by square of distance.
In mathematically,
\(F=\dfrac{Gm_{1}m_{2}}{r^2}\)
Where, m₁₂ = mass of first object
m= mass of second object
r = distance between both objects
Hence, The newton’s second law is F=ma
The Gravitational force is \(F=\dfrac{Gm_{1}m_{2}}{r^2}\)
Related Questions
similarities and differences between the last time the globe warmed and the climate changes occurring today.
Answers
The similarity between the last time the globe warmed and the climate change occurring today is that both are caused by the emission of greenhouse gases into the atmosphere.
Greenhouse gases trap heat from the sun in the atmosphere, causing the earth's temperature to increase. The difference between the two is that the current warming is happening much faster than the last time the globe warmed. This is largely due to the amount of greenhouse gases that have been released into the atmosphere since the industrial revolution. In addition, the current warming is affecting the global climate in more extreme ways than the last time the globe warmed, with more frequent and intense storms, droughts, and heatwaves.
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an aircraft is flying not worth at 300 km per hour yesterday wind is blowing West was at 80 km per hour what is the actual Direction the aircraft travels over the ground
Answers
Answer:
220km
Explanation:
What is the kinetic energy of a 78kg object moving at a velocity of 2.5m/s
Answers
Answer:
\(\boxed {\boxed {\sf 243.75 \ J }}\)
Explanation:
Kinetic energy is energy an object has due to motion. The formula is:
\(KE=\frac {1}{2}mv^2\)
The mass of the object is 78 kilograms and the velocity is 2.5 meters per second.
\(m= 78 \ kg \\v= 2.5 \ m/s\)
Substitute the values into the formula.
\(KE= \frac {1}{2} (78 \ kg)*(2.5 \ m/s)^2\)
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction. Solve the exponent first.
(2.5 m/s)²= 2.5 m/s * 2.5 m/s = 6.25 m²/s²\(KE= \frac {1}{2}(78 \ kg)*6.25 \ m^2/s^2\)
Multiply all three numbers together.
\(KE=39 \ kg * 6.25 \ m^2/s^2\\\)
\(KE=243.75 \ kg*m^2/s^2\)
1 kilogram meter squared per second squared is equal to 1 Joule. So, our answer of 243.75 kg *m²/s² is equal to 243.75 Joules.
\(KE=243.75 \ J\)
The object has 243.75 Joules of kinetic energy.
for a rotating object, the acceleration directed toward the center of rotation is called
Answers
For a rotating object, the acceleration directed toward the center of rotation is called centripetal acceleration.
Centripetal acceleration is a type of acceleration that occurs when an object moves in a circular path. It is always directed toward the center of the circle and keeps the object moving along its path. The magnitude of the centripetal acceleration is given by the formula a = v^2/r, where v is the velocity of the object and r is the radius of the circular path. The direction of the centripetal acceleration is constantly changing as the object moves around the circle, but it always points toward the center.
This acceleration is necessary to keep the object moving in a circular path, as any object in motion tends to continue moving in a straight line. Without centripetal acceleration, the object would fly off the circular path. Centripetal acceleration is used in many everyday applications, such as in amusement park rides and the motion of planets around the sun.
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True or false Momentum is sometimes not conserved in collisions
Answers
False.
The momentum is always conserved in a collision.
From the law of conservation of momentum, the total momentum of a system before the collision is equal to the total momentum of the system after the collision.
Thus, the given statement is false.
How many calories are produced when 50 ml of water is raised from 22 degrees celsius to 52 degrees celsius?
Help it’s due today
Answers
Answer:1500 calorie
Explanation:
Given
volume of water \(V=50\ ml\)
Initial temperature \(T_i=22^{\circ}C\)
Final temperature \(T_f=52^{\circ}C\)
We know,
specific heat of water is \(c=1\ calorie/gm-^{\circ}C\)
the density of water is \(\rho=1\ gm/ml\)
The heat required to raise the temperature
\(\Rightarrow Q=mc\Delta T\\\Rightarrow Q=\rho \cdot V\times c\times \Delta T\\\Rightarrow Q=1\times 50\times 1\times (52-22)\\\Rightarrow Q=1500\ cal.\)
1500 calories is required
A pressure switch is used in a washing machine to control the flow of water. The water pushes on a flexible container and compresses some trapped air. When the pressure of this trapped air reacher 104 kPa, the pressure switch turns the water off. The pressure of the trapped air is given by this relationship: pressure of the trapped air - atmospheric pressure + pressure difference caused by the water. Calculate the height of water in the machine when the pressurre of the trapped air reaches to 104 kPa and the switch operates. (atmospheric pressure = 100 kPa, density of water = 1000 kg/m^3)
Answers
The pressure switch controls water flow in the washing machine by monitoring trapped air pressure. Water column height is calculated using \(P = \rho gh + Patm\). At 104 kPa trapped air pressure, the water column height is 4.1 cm.
The pressure switch in a washing machine controls the flow of water by monitoring the pressure of trapped air. The pressure of the trapped air is affected by atmospheric pressure, the pressure difference caused by the water, and the height of the water column.
To calculate the height of water in the machine when the pressure of the trapped air reaches 104 kPa, we can use the equation:
\(P = \rho gh + Patm\)
where P is the pressure of the trapped air, ρ is the density of water, g is the acceleration due to gravity, h is the height of the water column, and Patm is the atmospheric pressure.
Substituting the given values, we get:
\(104 kPa = 1000\;kg/m^3 \times 9.81 m/s^2 \times h + 100 \;kPa\)
Solving for h, we get:
\(h = (104 \;kPa - 100 \;kPa)/(1000 \;kg/m^3 \times 9.81 \;m/s^2)\)
h = 0.041 m or 4.1 cm
Therefore, the height of water in the machine when the pressure of the trapped air reaches 104 kPa is 4.1 cm.
In summary, the pressure switch in a washing machine uses the pressure of trapped air to control the flow of water. The height of water in the machine is calculated using the equation \(P = \rho gh + Patm\), where P is the pressure of the trapped air, ρ is the density of water, g is the acceleration due to gravity, h is the height of the water column, and Patm is the atmospheric pressure.
By substituting the given values, we find that the height of water in the machine when the pressure of the trapped air reaches 104 kPa is 4.1 cm.
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how much cooler is the universe now (at an age of 4 × 1017 s) than it was at an age of 1 second?
Answers
Its temperature right now is ten billionths (1010) of what it was at one second ago.
After the Big Bang, the universe expands and cools, reaching a temperature of around T=1013 K 0.0001 seconds later. Antiprotons destroy protons, leaving only matter behind, but with a huge amount of photons for each neutron and proton that survive. Until one second after the Big Bang, the universe expands and cools, reaching a temperature of 1010 K.
According to the study, the average temperature of gas in the cosmos has increased more than 10 times during that time and is currently around 2 million Kelvin, or 4 million Fahrenheit. An updated study has revealed that the universe is heating up.
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A 1200-kilogram car moving at 12 meters per second collides with a 2300-kilogram car that is
waiting at rest at a traffic light. After the collision, the cars lock together and slide. Eventually,
the combined cars are brought to fest by a force of kinetic friction as the dog tires slide
across the dry level, asphalt road surface.
Calculate the magnitude of the frictional force that brings the locked-together cars to rest. [Show all
work, including the equation and substitution with units.]
Answers
23674 N is the amount of magnitude frictional force required to bring the locked-together automobiles to a complete stop.
What does physics mean by magnitude?Magnitude is simply referred to in physics as "distance or quantity." It shows the size or direction that an object moves in either an absolute or relative sense.
A magnitude example is what?A magnitude can be defined as a quantity's size in simple terms. For instance, the Richter scale's measurement of an earthquake's magnitude, which identifies the earthquake's size, typically ranges from 1 to 10. An earthquake with an 8-magnitude is far more problematic than one with a 3-magnitude.
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Mars rotates fast enough to make it an
electromagnet and have a magnetic
field, but it no longer has a liquid outer
core. Mars no longer has a magnetic
field to protect it.
What evidence do scientists have that
Mars used to have a magnetic field?
Mars has rocks on it that are magnetized.
The atmosphere of Mars contains evidence
of a magnetosphere.
There is no evidence. Scientists are just
speculating (guessing) based on videos
from the Mars roverto Settings to activate Windows.
Answers
The evidence that scientists have that Mars used to have a magnetic field is this:
B. The atmosphere of Mars contains evidence of a magnetosphere.
What evidence did scientists use to reach their conclusion?Scientists base whatever conclusions they reach on a subject matter on evidence. To reach their conclusion that mars had a magnetic field that protected it, they used a device known as an orbiter to measure the magnetic strength of mars.
Their discovery showed that the magnetic field on Mars was ten times as strong as the earth's field. This gives evidence of the fact that at a certain time, there was a strong magnetic field on Mars.
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FORENSIC SCIENCE, PLEASE HELP ASAP Investigators find a hair clasped in the fist of a dead victim. Upon close examination, they realize there is follicular tissue attached to that hair. What could investigators use to prove that the hair in the victim's fist belonged to a specific suspect? A) The medulla. B) Nuclear DNA. C) Mitochondrial DNA. D) Physical comparison.
Answers
Answer:
C) Mitochondrial DNA
Explanation:
Mitochondrial DNA can help forensic scientists in recovering the follicular tissue that is attached to the hair, they can find out the specific suspect from that hair.
Mitochondrial DNA is maternally inherited and enables forensic scientists to trace maternal lineage.
Answer:
Mitochondrial DNA
Explanation:
Mitochondrial DNA should be used to prove that the hair in the victim's fist belonged to a specific suspect. Mitochondrial DNA enables scientists to trace maternal lineage from which it can be known that who is the suspect.
if no divergence or convergence were occurring within the upper troposphere, what would happen to an existing surface low-pressure system?
Answers
An existing surface low-pressure system would probably stay stagnant or diminish due to the lack of support from upper-level dynamics if there was no divergence or convergence in the upper troposphere.
If there was convergence above, what would happen to your surface high pressure system?On the other hand, sea-level pressures rise in areas of convergence in the upper atmosphere. Surface high-pressure systems are often characterized by calm, largely clear weather due to the ensuing low-level divergence and sinking air.
How do divergence and convergence in the upper atmosphere affect the surface weather?The pressure systems traveling along the surface are enhanced or suppressed by this convergence and divergence. The air density above, for instance, will decrease when there is a region of diverging air in the upper troposphere.
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what is the relationship between force and acceleration
Answers
What does an electromagnet do?
Name five (5) things.
Answers
Answer:
it is used on hard disk drives, speakers, motors, mri machines, and generators
Explanation:
there ya go
A gust of wind blows an apple from a tree.
As the apple falls, the force of gravity on the apple is 9.16 N downward, and the force of the wind on the apple is 1.87 N to the right.
What is the direction of the net external force on the apple (measured from the downward vertical, so that the angle to the right of downward is positive)?
Answer in units of degrees
Answers
The direction of the apple is 78.5 degrees.
What is force?We know that force is that which brings about motion. Force acts on an object when it is stationary and makes it to move or makes a moving object to change direction.
The magnitude and the direction of the vector is regarded as very important when we are trying to solve for a particular vector.
Now we can see that the force of gravity acts vertically while the force that is exerted by the wind acts horizontally. This implies that we now have right angled triangle and the direction of the force could be obtained geometrically as;
tan^-1(9.16 N/ 1.87 N)
= 78.5 degrees
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Imagine that you are at the doctor's office and about to get a checkup. The doctor walks in and all of a sudden, your heart rate increases, mouth goes dry, etc. What system is causing this?
all of the above
parasympathetic nervous system
central nervous system
sympathetic nervous system
Answers
The parasympathetic nervous system and sympathetic nervous system are responsible for heart rate increasing and mouth going dry.
What is Autonomic nervous system?This is a part of the peripheral nervous system that regulates involuntary physiologic processes.
It is divided into two parts namely:
Parasympathetic nervous systemSympathetic nervous systemThey are responsible for involuntary actions which are mentioned above.
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A refrigerator has a coefficient of performance 4. How much heat is rejected to the hot reservoir when 250 kJ of heat are removed from the cold reservoir? A) 313 kJ B) More information is needed to answer this question. C) 187 kJ D) 563 kJ E) 470 kJ
Answers
The coefficient of performance (COP) of a refrigerator is defined as the ratio of the heat extracted from the cold reservoir to the work done on the refrigerator. It is given by the equation:
COP = Qc / W
Where:
COP is the coefficient of performance,
Qc is the heat extracted from the cold reservoir, and
W is the work done on the refrigerator.
In this case, we are given the coefficient of performance (COP) as 4 and the heat extracted from the cold reservoir (Qc) as 250 kJ. We need to find the heat rejected to the hot reservoir.
Since the coefficient of performance is defined as the ratio of Qc to W, we can rearrange the equation to solve for W:
W = Qc / COP
Substituting the given values:
W = 250 kJ / 4
W = 62.5 kJ
The work done on the refrigerator is 62.5 kJ.
Now, the heat rejected to the hot reservoir (Qh) is equal to the sum of the heat extracted from the cold reservoir (Qc) and the work done on the refrigerator (W):
Qh = Qc + W
Qh = 250 kJ + 62.5 kJ
Qh = 312.5 kJ
Therefore, the heat rejected to the hot reservoir is 312.5 kJ.
The correct answer is A) 313 kJ.
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What happens to the food and air that enter this healthy Simulation body
Answers
Answer:
The oxygen goes to the respiratory system and goes to the cells of the body. The food has glucose and that goes into the heart and blood vessels. Some of the glucose goes to the cells of the body.
Explanation:
The glucose contained in the food that enters the body enters the blood and heart through the blood vessels while the oxygen from air enters the body cells through the respiratory system.
Although there is a missing image a general answer is provided within the concept of your question
A healthy simulation body represents a real healthy human body, therefore when food is consumed the food is broken down in the digestive system. and
The glucose from the food will be absorbed into the blood stream of the individual, while the oxygen breathed in by the body will be absorbed into the body cells of the human.
Also some glucose from the consumed food will also be absorbed into the body cells to provide the necessary energy required by the body.
Hence we can conclude that The glucose contained in the food that enters the body enters the blood and heart through the blood vessels while the oxygen from air enters the body cells through the respiratory system.
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so like what happens if i eat a new born baby do i get super powers
Answers
Thats it. Thats the answer
Answer:
probaby not
Explanation:
you might get thrown in jail tho
compare and contrast the properties of visible light, ultraviolet rays, and x-rays.
Answers
Visible light, ultraviolet rays, and X-rays are all forms of electromagnetic radiation, with differences in their wavelengths, frequencies, and energies.
Visible light is the part of the electromagnetic spectrum that human eyes can perceive. It has a wavelength range of 400-700 nanometers, with violet having the shortest wavelength and red having the longest. Visible light can be refracted, reflected, and diffracted, and it can be split into its component colors using a prism.
Ultraviolet (UV) rays have shorter wavelengths and higher frequencies than visible light. They have wavelengths between 10-400 nanometers. UV radiation is classified as UVA, UVB, and UVC, with UVC having the shortest wavelength and highest energy. UV rays can cause damage to DNA and can cause sunburn and skin cancer.
X-rays have even shorter wavelengths and higher frequencies than UV rays. X-rays have wavelengths between 0.01-10 nanometers. They can penetrate through materials that visible light and UV radiation cannot, such as body tissues and bones, making them useful in medical imaging. X-rays are also produced in outer space and can be used to study the universe.
In summary, the main differences between these types of electromagnetic radiation are their wavelengths, frequencies, and energies, which determine their properties and potential applications.
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Wanda is taking photos using a lens that sees and records a very narrow view with a focal length longer than 60mm. When her friend asks what type of lens she is using for their photography outing, how does Wanda reply
Answers
Wanda can reply to her friend by saying that she is using a telephoto lens for their photography outing.
A telephoto lens is a type of camera lens that is designed to capture distant subjects by using a longer focal length than a standard lens. Telephoto lenses typically have a focal length of 60mm or longer, which allows them to see and record a very narrow view. This makes them ideal for capturing subjects that are far away, such as wildlife, sports events, and landscapes. Telephoto lenses are also popular for portrait photography because they can create a shallow depth of field, which helps to isolate the subject from the background.
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how large an angle in radians and degrees does the diameter of the moon subtend to a person on the earth
Answers
The 0.54° large an angle in radians and degrees does the diameter of the moon subtend to a person on the earth.
What is radian ?
One radian is defined as the angle that is subtended at its center by an arc of length one unit in a unit circle (a circle with radius one unit). The radian unit of measurement is represented by the letters "rad" or "c".
What is diameter ?
The line through a circle's center with two extremes on its circumference is said to have a diameter. The term "semi-circle" refers to the division of a circle into two equal sections by its diameter. A circle's center is where its diameter meets.
Therefore, 0.54° large an angle in radians and degrees does the diameter of the moon subtend to a person on the earth.
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In a room in a house, there are four electric lamps in parallel with each other, controlled by a single switch. With all the lamps working, one of the lamp filaments suddenly breaks.What, if anything happens to the remaining lamps? Explain your answer.
Answers
Explanation:
In a parallel circuit, each lamp is connected to the power source independently, meaning that the lamps are not directly connected to each other. Therefore, if one lamp filament breaks in this setup, the other three lamps will continue to work unaffected.
When the filament of one lamp breaks, it essentially opens the circuit for that particular lamp. However, the remaining lamps are still connected in parallel, so the current can flow through them independently. The other lamps will continue to receive electricity from the power source and light up normally.
This behavior is a characteristic of parallel circuits, where each component has its own individual connection to the power source. If the lamps were connected in series, the situation would be different. In a series circuit, a break in one lamp's filament would interrupt the flow of current throughout the entire circuit, and all the lamps would go out.
define the apparent cubic expansivity of a liquid
Answers
Answer:
THE APPARENT CUBIC EXPANSIVITY OF A LIQUID : is defined as the increase in volume per unit volume per unit rise in temperature when the liquid is heated in an expansible vessel.
Why is Pizza so good?
Answers
Answer:
its the cheese
Explanation:
In order to describe the velocity of an object, which three pieces of data are needed?
Question 4 options:
• The mass of the object in grams • The speed at which the object traveled • The pull of gravity on the object
• The distance traveled by the object • The time taken to travel • The direction of travel
• The mass of the object in grams • The time taken to travel • The acceleration of the object object
• The distance traveled by the object • The force the object had on another object • The mass of the object in grams
Answers
Answer:
. The distance traveled by the object. The time taken to travel .The direction of travel
PLEASE MARK MY ANSWER AS THE BRAINLIEST❤❤
In order to describe the velocity of an object, the distance traveled by the object, the time taken to travel, and the direction of travel. Therefore, option (B) is correct.
What is the velocity?Velocity can be described as a vector measurement of the direction and motion of an object. The velocity of a body can be defined as the rate of change in the object’s position w.r.t. time taken.
The velocity of an object is a vector quantity as it carries both magnitude and direction. A mathematical formula common way to determine velocity can be shown as:
v = d / t
where v is the velocity, d is the distance moved, and t is the time taken by the object.
Although the S.I. unit for the velocity of an object is m/s and can also represent as miles per hour (mph), and kilometers per hour (kph).
Therefore, we need distance traveled, time taken, and direction to describe the velocity of an object.
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which one of these values is the lowest temperature?32°F O 270 K O 0° Ċ O 273K
Answers
The temperature which is lowest among these given values will be 270K, which means option B is the right answer.
Temperature is defined as the degree of hotness or coldness of an object. It means that the amount of energy which is stored in it to increase its degree of hotness.
In the given problem, the values are given in different systems. So to determine that which one is smaller, first we convert them into Celsius, so that all the units are same.
The relation between Fahrenheit and celcius is given as follows:
Temperature in celsius = 5/9(temperature in Fahrenheit - 32)
∴ Temperature in celsius = 5/9(32 - 32) = 0 Celsius
The relation between Kelvin and Celsius is given as :
Temperature in Celsius = Temperature in Kelvin - 273.15
∴ Temperature in Celsius = 270 - 273.15 = -3.15 Celsius
273 K will be equal to 0 Celsius using above relation.
Hence all the values are equal to zero except 270 K which is negative, hence coldest.
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a resistor with r1 = 29.0 ω is connected to a battery that has negligible internal resistance and electrical energy is dissipated by at a rate of 50.0 w..If a second resistor with R2 = 15 Ω is connected in series with R1, what is the total rate at which electrical energy is dissipated by the two resistors? Express your answer using two significant figures.
Answers
Total energy dissipation by the two resistors is 30 W.
When the second resistor with R2 = 15 Ω is connected in series with R1 = 29.0 ω, the total resistance is R = R1 + R2 = 44.0 Ω.
The current flowing through the circuit is I = V/R, where V is the voltage across the circuit.
Since the battery has negligible internal resistance, the voltage across the circuit is equal to the emf of the battery. Therefore, I = emf/R.
The rate of the resistor's electrical energy dissipation:
P =\(I^2*R\).
Substituting the values, we get:
\(P = (emf/R)^2*R = emf^2/R = (emf^2/44.0) W\).
Given that the energy dissipation rate of R1 is 50.0 W, the energy dissipation rate of R2 is 30.0 W.
Therefore, the total rate at which electrical energy is dissipated by the two resistors is 30.0 W.
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The total rate at which electrical energy is dissipated by the two resistors connected in series is approximately 74 When a resistor R1 with a resistance of 29.0 Ω is connected to a battery with negligible internal resistance, the electrical energy is dissipated at a rate of 50.0 W. If a second resistor R2 with a resistance of 15 Ω is connected in series with R1, the total resistance (R_total) in the circuit becomes the sum of the two resistances, which is:
R_total = R1 + R2 = 29.0 Ω + 15 Ω = 44.0 Ω
Since the resistors are connected in series, the current (I) flowing through the circuit remains constant. We can find the current using the power dissipation in the first resistor (P1 = 50.0 W) and its resistance (R1 = 29.0 Ω) using the formula:
P1 = I² × R1
I = √(P1 / R1) = √(50.0 W / 29.0 Ω) ≈ 1.30 A
Now, we can find the total power dissipation (P_total) in the circuit with both resistors using the formula:
P_total = I² × R_total = (1.30 A)² × 44.0 Ω ≈ 74 W
Therefore, the total rate at which electrical energy is dissipated by the two resistors connected in series is approximately 74 W, expressed using two significant figures.
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a sample of radioactive material emits 400000 particles over a period of 20 minutes calculate the activity of the source in Becquerel
Answers
The activity of the source in Becquerel is 333.3Bq
What is Activity ?The number of nuclei that disintegrate or decay per unit time is known as Activity.
Given that a sample of radioactive material emits 400000 particles over a period of 20 minutes.
N = 400000 particlest = 20 min = 20 x 60 = 1200 sActivity A = dN/dt
A = 400000 / 1200
A = 333.3 particles / s
A = 333.3 Bq
Therefore,
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William Herschel thought he had found a comet when he spotted the green disk of: Neptune. Oberon. Uranus. Titania. Triton.
Answers
William Herschel thought he had found a comet when he spotted the green disk of Uranus.
Uranus is the seventh planet located far away from the Sun. It is a gaseous planet which was discovered in 1781, mistaken by a comet but after two years it was accepted as a planet. After decades of observations and only one close visit by a spacecraft, which shows us that Uranus has unique atmosphere.
Atmosphere of Uranus is mostly made up of hydrogen and helium as well as a small amount of methane and traces of water and ammonia. The presence of methane gas gives blue colour to Uranus so we can conclude that Uranus is the planet which was thought first a comet by William Herschel.
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