A runner runs a 1,500 m race on a circular track. The runner stops 100 m from the starting point. What are the distance and disp
1 answer:
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Answer:
The energy absorbed by the atomic electrons in the mercury atom is J
Explanation:
Given:
Potential V
According to the conservation law,
Loss in kinetic energy = Gain in potential energy
Here, energy absorbed by the atomic electrons is given by,
Where ( charge of electron )
J
Therefore, the energy absorbed by the atomic electrons in the mercury atom is J
Answer:
x ≈ 56 m
Explanation:
vertical initial velocity = = 25 m/s* sin(30°)= 12.5 m/s
height = h
t- time is found solving quadratic equation.
horizontal velocity =
Horizontal velocity is constant, so distance
Answer:
K = 1800 kJ
Explanation:
Given that,
The speed of the object, v = 30 m/s
Mass of the object, m = 4000 kg
We need to find the kinetic energy of the object. The formula for the kinetic energy is given by :
So, the required kinetic energy is equal to 1800 kJ.