Answer:
3300J
Explanation:
Work done is the energy that is lost by the skater
Formula for workdone = 1/2*mV^2
m = 66kg
V = 10m/s
Work done = 1/2 * 66 * 10^2
= 3300J
Answer:
Torque, 
Explanation:
It is given that,
Length of the wrench, l = 0.6 m
Mass of the wrench, m = 100 kg
We know that the torque applied by mechanic is given by :




So, the torque applied by the mechanic is 588 N-m. Hence, this is the required solution.
Answer:
Explanation:
In case of colored film we apply the theory of interference.
Condition that colored fringe is formed ( constructive interference)
2μt = λ/ 2 ( minimum order)
t = λ/ 4μ
= 540 / 4 x 1.38
= 97.83 nm
Answer:
it evaporats
Explanation:
because the sun is so hot that the water will turn into gas hope i helped