When momentum is transferred from one object to another, the total amount of momentum in the system (is/ is not) conserved
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in any collision, momentum is transferred from one object to another and momentum is conserved
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student built a simple heat engine that could lift masses. If the heat engine takes in 300 J of heat and loses 50 J to the environment, how much height will it lift a 1.5 kg mass?
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The amount of potential energy of a 5.0-kilogram book that is moved to three different shelves on a bookcase would be 49 Joules ,73.5 Joules, and 98 Joules respectively.
What is mechanical energy?
Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy.
Similarly, the total potential energy of the crane lift would be
PE = m*g*h
The potential energy of the book at 1.0 m is (5x9.8x1)= 49 Joules
The potential energy of the book at 1.5 m is (5x9.8x1.5) =73.5 Joules
The potential energy of the book at 2.0 m is (5x9.8x2)=98 Joules
Thus, the amount of potential energy of a 5.0-kilogram book that is moved to three different shelves on a bookcase would be 49 Joules,73.5 Joules, and 98 Joules respectively.
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mgh
m: mass
g: gravitational acceleration
h: height (relative to reference level)
so the P.E. at 1.0.m is (5x9.8x1)= 49J
P.E. at 1.5m is (5x9.8x1.5) =73.5J
P.E. at 2.0m is (5x9.8x2)=98J
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Answer:
The acceleration of this helicopter is
Explanation:
In this question the velocity changes from 30 m/sto 40 m/s in 5 seconds.
Initial velocity u=
Final velocity u=
Time t=
Acceleration is defined as the rate of change of velocity. It is given by the equation
=
=
=
All moving bodies aren’t necessarily accelerated. To be identified as accelerating, a body should have its velocity changing. Thus a body in uniform motion is not accelerating since its velocity is constant.
Answer:
A helicopter’s speed increases from 30 m/s to 40 m/s in 5 seconds.
What is the acceleration of this helicopter?
2
m/s2
Explanation:
Correct on egde
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Answer:
C. Building of new homes in the area
I'm not totally sure but I think this is the best answer.
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Gravity is what causes the ball to accelerate. The acceleration of the ball during the entire time it is in the air, assuming it is on the Earth's surface, is 9.8 m/s2.
What drives a ball's acceleration?
In a simple scenario, the ball falls in accordance with the direction of gravity, which is always downward. Gravitational acceleration on Earth is 9.8 m/s2 (g=9.8 m/s2). In essence, this indicates that the ball's velocity will increase by 9.8 m/s for every second while it is falling.
The bowling ball accelerates at 1.875 m/s2.
The ball revolves around its center of gravity while in flight. The center of gravity's motion is described by Newton's laws of motion. Drag is the term for the force that the air exerts on the motion of the ball as it travels through it.
force
According to Newton's second law, a large body will accelerate, or change its velocity, at a constant rate, when a constant force is applied to it. In the most basic scenario, when a force is applied to an object at rest, it accelerates in the force's direction.
Distance, time, acceleration, and velocity relationships. Unfortunately, the golf ball would stop accelerating unless we had a rocket-powered golf ball. It would merely move roughly in the horizontal direction at a constant speed.
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