Here are the missing questions:
(a) How fast is the skier moving when she gets to the bottom of the hill?
(b) How much internal energy was generated in crossing the rough patch?
Part A
The initial kinetic energy of the skier is:

Part of this energy is then used to do work against the force of friction. Force of friction on the horizontal surface can be calculated using following formula:

The work is simply the force times the length:

So when the skier passes over the rough patch its energy is:

When the skier is going down the skill gravitational potential energy is transformed into the kinetic energy:

So the final energy of the skier is:

This energy is the kinetic energy of the skier:
Part B
We know that skier lost some of its kinetic energy when crossing over the rough patch. This energy is equal to the work done by the skier against the force of friction.
From the bladder and goes through the male genitalia.
I would say false because the volume of gas depends on several things the amount of matter in the volume , the pressure and the temperature. So the answer would be false in my opinion. Because mass is not the only factor
Answer:
Weight required = 194.51 N
Explanation:
The elongation is given by

Length , L= 1.6 m
Diameter, d = 1.1 mm
Area

Change in length, ΔL = 2.8 mm = 0.0028 m
Young's modulus of copper, E = 117 GPa = 117 x 10⁹ Pa
Substituting,

Weight required = 194.51 N