Physics, 03.08.2021 02:50 MayFlowers
A heavy rock and a light rock are dropped from the same height and experience no significant air resistance as they fall. Which of the following statements about these rocks are correct?
a. Just as they are about to reach the ground, the heavier rock has more kinetic energy than the lighter rock.
b. The moment they were released, both rocks had the same amount of gravitational potential energy.
c. Both rocks have the same kinetic energy when they reach the ground.
d. The heavier rock reaches the ground before the lighter rock.
e. Both rocks different acceleration as they are about to reach the ground
Answers: 2
Physics, 22.06.2019 14:40
The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.
Answers: 1
Physics, 22.06.2019 21:30
Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?
Answers: 1
A heavy rock and a light rock are dropped from the same height and experience no significant air res...
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