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Since we are neglecting air resistance the energy of the ball is conserved. We set the gravitational potential energy to be U=0 at h=0. Applying conservation of energy at h=0 and h=h_max , we ge...

Change in velocity is 30m/s Acceleration is equal to the change in velocity / time taken a = 30/10 = 3m/s²  

a) energy transferred = mass.specific heat capacity.temperature change, or E = m.c.theta. c is provided at 4181 joules per kg. so E = 2.4181.(80-20) = 501720 joules

b) some water has evaporated off...

Apparatus: The wire is secured by a clamp and clamp stand A hanging mass is attached to the end of it, where the mass hung can...

Let's begin with the definition of stress:

Stress = F/A

First, we need to recall that the force the weight of the crate will exert on the cable will be equal to:

F= m*g

We know...