The change in the skier's gravitational potential energy is 199430 J.
<h3> Gravitational potential energy:</h3>
This is the energy of a body due to its position in a gravitational field. The S.I unit of gravitational potential energy is Joules (J)
The Change in the skier's gravitational potential energy can be calculated using the formula below.
Formula:
- ΔP.E = mg(Δh)............... Equation 1
Where:
- ΔP.E = Change in the skier's potential energy
- m = mass of the skier
- Δh = change in height to which it was raised
- g = acceleration due to gravity.
From the question,
Given:
Substitute these values into equation 1
- ΔP.E = 55×370×9.8
- ΔP.E = 199430 J.
Hence, The change in the skier's gravitational potential energy is 199430 J.
Learn more about potential energy here: brainly.com/question/1242059
In this case, Coulomb's Law applies:
F = 1/(4πε₀) · (Q₁Q₂/r²)
You can solve it for r:
r = √[1/(4πε₀) · (Q₁Q₂/F<span>)]
Plugging in numbers:
r = </span>√[1/(4π·8.85×10⁻¹²) · (2.5×10⁻⁶)²/0.50]
= 0.335m
The correct answer is: the two charges are 0.335m apart.
Answer:
c. is more than that of the fluid.
Explanation:
This problem is based on the conservation of energy and the concept of thermal equilibrium

m= mass
s= specific heat
\DeltaT=change in temperature
let s1= specific heat of solid and s2= specific heat of liquid
then
Heat lost by solid= 
Heat gained by fluid=
Now heat gained = heat lost
therefore,
1000 S_2=800 S_1
S_1=1.25 S_2
so the specific heat of solid is more than that of the fluid.