If there are no other factors, then the distance increases every second.
Answer:
4500 j
Explanation:
2m/s divided by 1500 kj x 2 = 4500 j
Answer:
1) Option D
2) Option D
3) Option C
Explanation:
1) Kinetic energy 
m = 500 kg
v = 10 m/s
Kinetic energy 
Option D is the correct answer.
2) Potential energy = mgh
m = 25 kg
g = 10 m/s²
h = 42 m
Potential energy = 25 * 10 * 42 = 10500 J
Option D is the correct answer.
3) Thermal equilibrium means no heat flow from each other two systems, that is achieved when both systems have same temperature.
Option C is the correct answer.
Answer:
H(max) = (v²/2g)
Explanation:
The maximum height the ball will climb will be when there is no friction at all on the surface of the hill.
Normally, the conservation of kinetic energy (specifically, the work-energy theorem) states that, the change in kinetic energy of a body between two points is equal to the work done in moving the body between the two points.
With no frictional force to do work, all of the initial kinetic emergy is used to climb to the maximum height.
ΔK.E = W
ΔK.E = (final kinetic energy) - (initial kinetic energy)
Final kinetic energy = 0 J, (since the body comes to rest at the height reached)
Initial kinetic energy = (1/2)(m)(v²)
Workdone in moving the body up to the height is done by gravity
W = - mgH
ΔK.E = W
0 - (1/2)(m)(v²) = - mgH
mgH = mv²/2
gH = v²/2
H = v²/2g.
2. A phone is being charged using a current of 0.444 A.
If the resistance of the phone is 10 , what is the
voltage being applied to the phone?
