When a candle is burning the candle is releasing thermal and radiant energy
Answer:
The answer is the kinetic energy of sled B after it crash is 6439j.
The answer is True. The amount force exerted by any object is directly proportional to its mass. This means that our planet is exerting more gravitational force to Angelina, and Angelina is also exerting a gravitational force on our planet directly proportional to her mass. Angelina is actually falling towards the center of the earth,and also our planet is also moving towards Angelina, but it seems negligible with respect to Angelina.Our Sun is so massive that it held our planet in its orbit because of its gravitational force.
Explanation:
A compass needle acts as a Magnet
The maximum height reached by the ball is 99.2 m
Explanation:
When the ball is thrown straight up, it follows a free fall motion, which is a uniformly accelerated motion with constant acceleration (
towards the ground). Therefore, we can use the following suvat equation:
![v^2-u^2=2as](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2as)
where
v is the final velocity
u is the initial velocity
a is the acceleration
s is the displacement
In this problem, we have:
u = 44.1 m/s is the initial vertical velocity of the ball
v = 0 is the final velocity when the ball reaches the maximum height
s is the maximum height
is the acceleration of gravity (downward, so negative)
Solving for s, we find the maximum height reached by the ball:
![s=-\frac{u^2}{2a}=-\frac{44.1^2}{2(-9.8)}=99.2 m](https://tex.z-dn.net/?f=s%3D-%5Cfrac%7Bu%5E2%7D%7B2a%7D%3D-%5Cfrac%7B44.1%5E2%7D%7B2%28-9.8%29%7D%3D99.2%20m)
Learn more about free fall:
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