Answer: 
Explanation:
Given
(a)
Heat transfer 
Work done 
Change in the internal kinetic energy is

(b)
Heat transfer 
Work done 
Change in the internal kinetic energy is

Answer:
Highly doubt something that requires great focus and mental strength exists
Explanation:
As the given data is as follows.
h = 
= 
Also, we know that r = 
and Volume (V) = 
= 
= 
And, 

Putting the given values into the above formula as follows.

[tex]\frac{dh}{dt} = 1.343 m/min
or, = 134.3 cm/min (as 1 m = 100 cm)
thus, we can conclude that the height changing at 134.3 cm/min when the pile is 2 m high.
parachute must open at 200 meters above ground, how much time will she be in a ... velocity if it hits the ground 20 s after being released? Ignore air resistance. ... The launch occurs.
1. The vibration is perpendicular to the direction of travel of transverse waves.
2. The vibration is parallel to the direction of travel of longitudinal waves.
3. Compression waves contain compressions and rarefactions.
They are longitudinal waves.
4. You produce a transverse wave when you move one end of a
horizontal spring up and down.
5. All waves have wavelengths.