Answer: The thermal energy expelled in each cycle is 33.5 J.
Explanation: The efficiency of a heat engine is defined as the ratio of the work done by the engine to the thermal energy absorbed from the hot reservoir. Mathematically, it can be expressed as:
efficiency = (work done) / (thermal energy absorbed)
In this problem, we are given that the heat engine absorbs 347 J of thermal energy and performs 33.5 J of work in each cycle. Therefore, we can calculate the efficiency as:
efficiency = (33.5 J) / (347 J) ≈ 0.0967 or 9.67%
So the efficiency of the engine is approximately 9.67%.
The thermal energy expelled in each cycle can be calculated using the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system. Mathematically, it can be expressed as:
ΔU = Q - W
where ΔU is the change in internal energy, Q is the thermal energy absorbed, and W is the work done by the engine. Since the engine is operating in a cycle, its internal energy does not change over the course of the cycle, so we have:
ΔU = 0
Therefore, we can rearrange the first law equation to solve for the thermal energy expelled:
Q = W
Substituting the values we were given, we get:
Q = 33.5 J
So the thermal energy expelled in each cycle is 33.5 J.
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An airplane needs to reach a forward velocity of 203 km/h to take off. On a 2000m runway, what is the minimum uniform acceleration necessary for the plane to take flight if it starts from rest?
Answer:
Minimum uniform acceleration in Km/hr² is 20,505.05 km/hr²
Explanation:
In other to determine the acceleration, we can use the formula below
acceleration = velocity/time
Time wasn't given in the question, hence we calculate for time using the parameters given and the formula below
Velocity= distance/time
time = distance/velocity
distance = 2000m ⇔ 2km
time = 2/203
time = 0.0099
Hence, we look for acceleration
which is
acceleration = 203/0.0099
= 20,505.05 km/hr² ⇔ 2.0 × 10⁴
as a wave approaches a shoreline at a non-parallel angle, the wave crest is bent in response to changes in wave speed. this is called .
As a wave approaches a shoreline at a non-parallel angle, the wave crest is bent in response to changes in wave speed. This is called wave refraction.
Wave refraction is the redirection of a wave, usually by the shore, so that it moves more nearly parallel to the shoreline. Wave refraction is a phenomenon that happens when waves slow down in shallow water.
When a wave moves from deep to shallow water, the shallow part of the wave slows down, making it turn. The wave's crest curves towards the shoreline in wave refraction, while the trough remains straight. When the wave is moving toward the shoreline at an angle, the crest is bent in response to changes in wave speed.
Wave refraction is important because it contributes to the development of currents along the shoreline. The swash is strong when waves are coming straight in, but when they come at an angle, the water has to flow back to the side to keep the level. As a result, a current is created that flows parallel to the shore.
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Find the gravitational force between Earth (5.97 x 1024 kg) and the Sun (1.99 x 1030 kg) knowing they are 1.48 x 1011 m apart.
Using the gravitational force of F= G(m1*m2/r^2)
m1= 5.97 x 10^24 kg (Earth)
m2= 1.99 x 10^30 kg (Sun)
r= 1.48 x 10^11 m
G is a known value, it is 6.672 x 10^-11
All units are proper. Therefore plug in the values and you get 3.16 x 10^22 N.
Let me know if I calculated this wrong and it is something else so I can delete this. Thank you. I don't want to make other students put down the wrong answer.
Answer:
\(\boxed {\boxed {\sf F_g \approx 3.62 *10^{22} \ N}}\)
Explanation:
We are asked to find the gravitational force between Earth and the Sun. Use the following formula:
\(F_g= \frac{Gm_1m_2}{r^2}\)
G is the universal gravitational constant. One mass (m₁) is the Earth and the other (m₂) is the Sun. r is the distance between the planets.
G= 6.67 * 10⁻¹¹ N*m²/kg²m₁ = 5.97 * 10²⁴ kg m₂= 1.99 * 10³⁰ kg r= 1.48 *10¹¹ mSubstitute the values into the formula.
\(F_g = \frac{ (6.67*10^{-11} N*m^2/kg^2)(5.97*10^{24} \ kg)(1.99*10^{30} \ kg) }{ (1.48 *10^{11} \ m)^2}}\)
Multiply the numerator. The units of kilograms cancel.
\(F_g = \frac {7.9241601 *10^{44} \ N*m^2}{ (1.48 *10^{11} \ m)^2 }\)
Solve the exponent in the denominator.
\(F_g= \frac {7.9241601 *10^{44} \ N*m^2}{ 2.1904*10^{22} \ m^2}\)
Divide. The units of meters squared cancel.
\(F_g=3.61767718 *10^{22} \ N\)
The original values all have 3 significant figures, so our answer must have the same. For the number we found, that is the hundredth place. The 7 in the thousandth place tells us to round the 1 up to a 2.
\(F_g \approx 3.62 *10^{22} \ N\)
The gravitational force between Earth and the Sun is approximately 3.62 *10²² Newtons.
How much power is theoretically available from a mass flow of 1 000 kg/s of water that falls a vertical distance of 100 m?
The theoretically available power from a mass flow of 1,000 kg/s of water falling a vertical distance of 100 m is 9,800,000 Watts or 9.8 Megawatts.
The power available from a mass flow of water can be calculated using the formula:
Power = (mass flow rate) * g * h
where:
- Power is the available power
- mass flow rate is the rate at which mass flows (in kg/s)
- g is the acceleration due to gravity (approximately 9.8 m/s^2)
- h is the vertical distance the water falls (in meters)
mass flow rate = 1,000 kg/s
vertical distance = 100 m
Using the formula, we can calculate the power:
Power = (1,000 kg/s) * (9.8 m/s^2) * (100 m)
Power = 9,800,000 Watt
Therefore, the theoretically available power from a mass flow of 1,000 kg/s of water falling a vertical distance of 100 m is 9,800,000 Watts or 9.8 Megawatts.
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The car was initally traveling at 25 m/s. The car slows with a negative acceleration as shown. How long does it take the car to slow to a final velocity of 2.0 m/s?
Answer:
t = 2.35sExplanation:
Using one of the equation of motion expressed as v = u+at where;
v is the final velocity = 2.0m/s
u is the initial velocity = 25m/s
a is the acceleration = -a (since the acceleration is negative)
t is the time taken
Substituting the given parameters into the formula above;
2.0 = 25-9.81t
subtract 25 from both sides
2.0 - 25 = 25-9.81t - 25
-23 = -9.81t
Divide both sides by -9.81
-23/-9.81 = -9.81t/-9.81
t = 23.0/9.81
t = 2.35s
Hence it took the car 2.35s to slow to a final velocity of 2.0 m/s
convert 288cm to Meters
Give explanation + formula
Answer:
288 cm is 2.88 meters. This is because each centimeter is 1/100th of a meter, or in other words, each meter is 100 cm. To find out cm-m, divide the amount of cm by 100 and change the unit to m.
Explanation:
formula is cm/100=m
288/100= 2.88m
You drive a bumper car into another bumper car whose driver has a much larger body mass than you do. Who experiences more of a jolt, you or the other driver?
Answer:
both drivers experience the same force. just with different "results"
Explanation:
Answer:
You do
Explanation:
Momentum is mass*velocity. So Newton's 3rd law equal and opposite reaction. Because you weigh less you will have more force act on you than the driver who weighs more.
HELP PLEASE! DUE TONIGHT! If the wind speed in the top figure increased, what would happen to the plane’s ground speed?
Answer: Flying into the wind provides more lift, but reduces the plane's “ground speed”, the speed of the plane relative to the ground hope this helps
the work function for a certain sample is 2.8 ev. the stopping potential for electrons ejected from the sample by 9.0 x 1014 hz electromagnetic radiation is A. 0 B. 0,60 V C. 2,3 V D. 2,9 V E. 5,2 V
The stopping potential for electrons ejected from the sample by the given electromagnetic radiation is approximately \(\rm \(14.54 \times 10^{19}\) V\).
To calculate the stopping potential \(\rm (\(V_s\))\) for electrons ejected from the sample by electromagnetic radiation, we can use the following formula:
\(\rm \[V_s = \frac{h \times f}{e} - \phi\]\)
where:
h = Planck's constant \((4.136 \times 10^{-15}\) eV.s)\)
f = Frequency of the electromagnetic radiation (given as \(\rm \(9.0 \times 10^{14}\)\) Hz)
e = Charge of an electron \(\rm (\(1.602 \times 10^{-19}\) C or \(1.602 \times 10^{-19}\) eV)\)
\(\rm \(\phi\)\) = Work function of the sample (given as 2.8 eV)
Plugging the values and calculating the stopping potential \(\rm (\(V_s\))\):
\(\rm \[V_s = \frac{(4.136 \times 10^{-15} \, \text{eV.s}) \times (9.0 \times 10^{14} \, \text{Hz})}{1.602 \times 10^{-19} \, \text{eV}} - 2.8 \, \text{eV}\]\)
\(\[V_s = \frac{37.224 \times 10^{-1} \, \text{eV}}{1.602 \times 10^{-19} \, \text{eV}} - 2.8 \, \text{eV}\]\)
\(\[V_s \approx 2.325 \times 10^{18} \, \text{eV} - 2.8 \, \text{eV}\]\)
\(\[V_s \approx 2.325 \times 10^{18} \, \text{eV} - 2.8 \, \text{eV} \approx 2.325 \times 10^{18} \, \text{eV}\]\)
\(\[V_s = \frac{2.325 \times 10^{18} \, \text{eV}}{1.602 \times 10^{-19} \, \text{C}} \approx 14.54 \times 10^{19} \, \text{V}\]\)
Thus, the stopping potential for electrons ejected from the sample by the given electromagnetic radiation is approximately \(\rm \(14.54 \times 10^{19}\) V\).
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Your question is incomplete, but most probably your full question was,
The work function for a certain sample is 2.8 ev. the stopping potential for electrons ejected from the sample by 9.0 x 1014 hz electromagnetic radiation is A. 0 B. 0,60 V C. 2,3 V D. 2,9 V E. 5,2 V F. 14.54 × 10¹⁹
A ramp with a mechanical advantage of eight lifts objects to a height of 1.5 meters. How long it the ramp?
i will give 15points for help!!
Answer:
12 m
Explanation:
Given data:
M.A. = 8 (No units),
Ramp height (h)= 1.5 m, lifted,
Determine how long is the ramp=?
General formula
Mechanical Advantage = (Ramp length) ÷ (Ramp height),
M.A = l ÷ h
8 × 1.5 = l = 12 m long
length of the ramp l ramp = 12 m
How much work is performed by a student pulling a sled using 175 N of force over a distance of 200 meters?
Answer:
35000Joules
Explanation:
Work is done whenever force moves a body through a particular distance.
Work done = force × distance
Force = 175 newton
Distance = 200 meters
Work done = 175newton × 200meters
Work done = 35000 Joules or 35Kilo joules
The work done is 35000joules
When earth catches up to a slower-moving outer planet and passes it in its orbit, in the same way that a faster runner overtakes a slower runner in an outside lane, the outer planet.
When earth catches up to a slower-moving outer planet and passes it in its orbit, in the same way that a faster runner overtakes a slower runner in an outside lane, the outer planet exhibits a retrograde motion
When a planet is far from another planet and observed from it, it rotates at a slower rate, making it appear that it is "retrograding" with regard to the other planet.
Early astronomers were perplexed when they observed motion in the sky because they attempted to explain it in terms of the geocentric idea.
Due to their commitment to the geocentrical paradigm, which stated the Earth was the center of the solar system, early astronomers were perplexed and unable to explain the phenomena.
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Tell how the volume of a material i related to temperature. Ue the term thermal expanion and thermal contraction in your repone
The volume of a material is related to temperature through thermal expansion and thermal contraction. Different materials will expand and contract at different rates, and the amount of expansion or contraction also depends on the magnitude of the temperature change.
Temperature and volume are related through the phenomenon of thermal expansion and thermal contraction. Thermal expansion occurs when the temperature of a material increases, causing the material to expand or increase in volume. Thermal contraction is the opposite; when the temperature of a material decreases, the material contracts or decreases in volume.
The amount of thermal expansion or contraction that occurs depends on the type of material, as different materials will respond differently to temperature changes. Generally, solids experience more thermal expansion than liquids, and metals experience more thermal expansion than non-metals. This means that when the temperature of a material increases, the volume of a solid material will increase more than the volume of a liquid material; the volume of a metal material will increase more than the volume of a non-metal material.
The amount of thermal expansion or contraction also depends on the magnitude of the temperature change. Generally, the greater the temperature change, the greater the amount of thermal expansion or contraction. For example, if the temperature of a material is increased from 10°C to 20°C, the material may experience a small amount of thermal expansion. However, if the temperature is increased from 10°C to 100°C, the material may experience a large amount of thermal expansion.
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What is the magnitude of the electric field strength at a point where an electron
experiences an electrostatic force of 8 x 10^ 17 N? NO LINKS.
1) 5 x 10^36 N/C
2) 0.76 N/C
3) 8 x 10^17 N/C
4) 0.002 N/C
Answer:
E = F/ q 8x10^17÷ 1.6 x 10^ - 19
Explanation:
5x 10^36N\c A is answer
what two elements are highlighted on group 3 of the periodic table
Answer:
hello! Jaesuk~Sakai here!
Explanation:
The four group 3 elements are scandium, yttrium, lanthanum and actinium. “lanthanide” refers to the elements between lanthanum and lutetium. That term does not encompass scandium and yttrium. Scandium and yttrium act pretty much identically to lanthanides.
happy to help!!
Remember to always stay happy no matter what happens! ^^
Any change in an object's velocity is caused by
A. the object's mass
B. a balanced force
C. an unbalanced force
D. the object's direction
Answer:
C. an unbalanced forceExplanation:
I hope it helps ❤❤Bob is pulling a 30 kg filing cabinet with a force of 200 N , but the filing cabinet refuses to move. The coefficient of static friction between the filing cabinet and the floor is 0.80
Part A
What is the magnitude of the friction force on the filing cabinet?
Express your answer to two significant figures and include the appropriate units.
The applied force, F, and the friction force, f, act on the cabinet in the direction of motion (x-axis). Therefore,
F + (-f) = mg
Now, by using the formula for static friction :
f = mg
f = (0.80)(30)(9.8)
f = 235.2 kg m/s² or,
Therefore, the magnitude of the friction force is 235.2 N.
What do you mean by static friction?Static friction is a force that holds an object at leisure. It is the friction encountered when individuals try to move a fixed object on a surface without initiating any relative motion between the body and the surface on which it is.
How can you define static force?A force acting on an object is static force if it does not change that particular object's size, position, or direction. The force involved in a structure acts as a load to that precise structure. This is why static force is also known as a static load.
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can u find the . in this?
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Yeah it's right there from the one next to the exclamation point
Answer:
its not there
Explanation:
its literally not there
The velocity ratio of a pulley system is 4. What does it means
Answer:
Velocity ratio = distance travelled by effort / distance travelled by load. Which is equal to effort arm / load arm. When velocity ratio (VR) is 4, the effort arm is greater than load arm.
This refers to the ability of the joints to move through a full range of motion
Answer:
Flexibility is the ability of a joint or series of joints to move through an unrestricted, pain free range of motion. ... These soft tissues include: muscles, ligaments, tendons, joint capsules, and skin.
Explanation:
2750 kg of water are pumped each minute through 55 m of 150 mm diameter pipe. the water is moved 13 m vertically. the pump efficiency is 76%. if the friction loss over the full length of pipe is 2.5 m, what power must be delivered to the pump?
The friction loss calculator to determine the pressure head loss resulting from friction for a specific pipe dimension and volumetric flow rate.
What is Friction loss calculator?Energy is lost as a result of the friction force created when fluids interact with pipe walls. The Hazen-Williams formula is used in the pipe friction calculator to determine friction loss.
The loss in pressure due to friction using the specific weight of water in the advanced mode of our tool, meaning this pipe friction calculator can find the pressure drop in a water pipe system.
Common examples of water pipe systems are the water supply to your kitchen, the sprinkler system on the roof, water in a fire hose and a piping system to fill your swimming pool. The water flow in the mentioned systems has varied efficiency and pressure output depending on factors like friction due to the pipe's material.
Therefore, The friction loss calculator to determine the pressure head loss resulting from friction for a specific pipe dimension and volumetric flow rate.
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Question 18 of 25 What is the current model of the atom called? O A. Electron cloud model B. Plum pudding model OC. Planetary model O D. Nuclear model
The current model of the atom is called the electron cloud model or the quantum mechanical mode.
Current model of an atom explained.The current model of the atom is called the electron cloud model or the quantum mechanical model. This model describes electrons as existing in a three-dimensional region around the nucleus called the electron cloud, where the electrons are most likely to be found at any given time. This model incorporates principles of quantum mechanics, which recognizes the wave-particle duality of electrons and the probabilistic nature of their behavior, in contrast to the earlier classical models like the planetary model or the plum pudding model.
Therefore, the nuclear model, which describes the atom as consisting of a central nucleus surrounded by electrons, is a precursor to the modern quantum mechanical model.
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what property of gases describes the amount of space taken up by the gas?
Answer:
High pressure
The amount of space a gas's molecules take up compared to the total space in the container—the molecules' relative volume—gets bigger.
Explanation:
Which are properties of both a gas and a plasma? Check all that apply.
A. Can change shape to conform to a container
B. Has a rigid shape that does not change easily
C. Is made up of free-moving ions and electrons
D. Is compressed more easily than other states
E. Has particles that move freely from place to place
F. Will expand to completely fill a closed container
Answer:
D, E, and F
Explanation:
Like a gas, plasma lacks a fixed volume and shape. Unlike a gas, plasma can conduct electricity and respond to magnetism. That's because plasma contains charged particles called ions. The particles that make up matter are also constantly moving.
The properties of both a gas and a plasma are:
Is compressed more easily than other states.Has particles that move freely from place to place.Will expand to completely fill a closed container.What are the properties of gas and plasma?A gas lacks both a fixed volume and a fixed shape. While certain gases are palpable to humans and can be seen and felt, others are not. The gases oxygen, helium, and air are a few examples. N2, O2, and CO2 are among the gases that make up the Earth's atmosphere.
Both the volume and shape of plasma are illusive. Ionized gases frequently contain plasma, yet plasma differs from a gas in that it has special characteristics. The plasma is electrically conductive because it contains free electrical charges that aren't attached to atoms or ions. A gas can be heated and ionized to create plasma. Stars, lightning, fluorescent lights, and neon signs are a few examples of plasma.
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ACTIVITY 4
Applying the equation learned, answer the following problems:
1. A bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s. What is its momentum? p = m/s. What Is Its Momentum?
Given:
Find:
Formula:
Solution:
2. A skateboard is rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s. What is its mass?
Given:
Find:
Formula:
Solution:
3. A pitcher throws a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s. What is its velocity?
Given:
Find:
Formula:
Solution:
Subject Is Science
Good Perfect Complete=Brainlist
Copy Wrong Incomplete=Report
Good Luck Answer Brainly Users:-)
Answer:
1) 10 kg-m/s
2) 2 kg
3) 20 m/s
Explanation:
The momentum of an object can be calculated using the equation:
\(\large\boxed{p=mv}\)
where:
p is momentum (measured in kilogram meters per second).m is mass (measured in kilograms).v is the velocity (measured in meters per second).\(\hrulefill\)
Question 1For this question we need to find the momentum of a bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s.
Given values:
m = 4.0 kgv = 2.5 m/sSubstitute the given values into the momentum formula and solve for p:
\(p=4.0\;\text{kg} \cdot 2.5\;\text{m/s}\)
\(p=10\;\text{kg m/s}\)
Therefore, the momentum of the bowling ball is 10 kg-m/s.
\(\hrulefill\)
Question 2For this question we need to find the mass of a skateboard rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s.
Given values:
p = 6.0 kg-m/sv = 3.0 m/sAs we want to find mass, rearrange the momentum formula to isolate m:
\(\large\boxed{m=\dfrac{p}{v}}\)
Substitute the given values into the formula and solve for m:
\(m=\dfrac{6.0\; \text{kg m/s}}{3.0\; \text{m/s}}\)
\(m=2\;\text{kg}\)
Therefore, the mass of the skateboard is 2 kg.
\(\hrulefill\)
Question 3For this question we need to find the velocity of a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s.
Given values:
p = 10 kg-m/sm = 0.5 kgAs we want to find velocity, rearrange the momentum formula to isolate v:
\(\large\boxed{v=\dfrac{p}{m}}\)
Substitute the given values into the formula and solve for v:
\(v=\dfrac{10\; \text{kg m/s}}{0.5\; \text{kg}}\)
\(v=20\;\text{m/s}\)
Therefore, the velocity of the baseball is 20 m/s.
A trebuchet fired a tennis ball with an initial velocity. Determine the following
ANSWER
\(\begin{gathered} (a)\text{ }12.61\text{ }s \\ (b)\text{ }194.73m \\ (c)\text{ }608.57\text{ }m \\ (d)\text{ }78.4\text{ }m\/s \end{gathered}\)EXPLANATION
Parameters given:
Initial velocity, v0 = 78.4
Angle of projectile, θ = 52 degrees
(a) To find the flight time of the tennis ball, apply the formula:
\(t=\frac{2v_0\sin\theta}{g}\)where g = acceleration due to gravity
Hence, the total flight time of the tennis ball is:
\(\begin{gathered} t=\frac{2*78.4*\sin52}{9.8} \\ t=12.61\text{ }s \end{gathered}\)(b) To find the maximum altitude of the ball during its flight, apply the formula:
\(H=\frac{v_0^2\sin^2\theta}{2g}\)Therefore, the maximum height attained by the tennis ball is:
\(\begin{gathered} H=\frac{78.4^2*\sin^2(52)}{2*9.8} \\ H=194.73\text{ }m \end{gathered}\)(c) To find the horizontal distance the tennis ball travels, apply the formula:
\(R=\frac{v_0^2\sin2\theta}{g}\)Hence, the horizontal distance traveled by the tennis ball is:
\(\begin{gathered} R=\frac{78.4^2*\sin(2*52)}{9.8} \\ R=608.57\text{ }m \end{gathered}\)(d) To find the final velocity of the tennis ball, apply the formula:
\(v=\sqrt{v_0^2+2h(-g)}\)where h = initial height = 0 m
Hence, the final velocity of the tennis ball just before impact is:
\(\begin{gathered} v=\sqrt{78.4^2+2(0)(-9.8)} \\ v=\sqrt{78.4^2+0}=\sqrt{78.4^2} \\ v=78.4\text{ }m\/s \end{gathered}\)PLEASE HELPPP
Force: Adding vectors (find resultant force)
50N north plus 50N west Plus 50N north west
how would a planet move if the sun suddenly disappeared ?
Explanation:
The sun gravity keeps the solar system i.e planets in its place and orbits if there is no sun the planets would flying off and It would be complete and utter chaos in our solar system
This force governs atomic decay.
Answer:
The weak force governs the decay of a neutron into a proton (a process known as beta decay). The strong force binds quarks together into protons and neutrons (the residual strong force holds protons and neutrons together in the nucleus). Gravity governs the motion of an apple falling from a tree.
Explanation:
Answer:
Weak Nuclear force
A satellite in orbit around Earth is in uniform circular motion. What is the angle between the velocity vector and acceleration vector at any given point on the orbit?
A. 90°
B. 45°
C. 180°
D. 0°
The angle between the velocity vector and acceleration vector at any given point in the orbit would be 90 degrees, therefore the correct answer is option A.
What is acceleration?The rate of change of the velocity with respect to time is known as the acceleration of the object. Generally, the unit of acceleration is considered as meter/seconds².
As given in the If a satellite in orbit around Earth is in a uniform circular motion then we have to find the angle between the velocity vector and acceleration vector.
In a uniform circular motion, the angle between the velocity vector and acceleration vector is always π/2.
The angle between the velocity vector and acceleration vector at any given point in the orbit would be 90 degrees.
Thus, the correct answer is option A.
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