Answer:
114.19186 m
Explanation:
v = Velocity of girl at bottom = 7.1 m/s
= Coefficient of kinetic friction = 0.045
g = Acceleration due to gravity = 9.81 m/s²
d = Distance
N = Normal force = 783 N
The weight of the sled and girl is considered as the sum of the frictional force and weight
Hence we use the following equation where the kinetic energy and potential energy are conserved
The sled travels 114.19186 m on the level ground before coming to a rest
Answer:
Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy. While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation.
Explanation:
Answer:
Work occurs when a force acts on an object and causes a displacement of that object.
Explanation:
a . Force applying over a distance or in other words force causing the movement (displacement) of an object is known as Work.
b. An activity with mental or physical effort is done in order to achieve a result is called work.
c. A constant force integrates the product of the force and distance.
Ex : 1) when the body moves in the direction of force
2) shooting a bullet
3) Pushing a car horizontally from rest
4)walking up stairs
5) sawing a log.
That's true.
Magnets attract some metals such as iron, nickel, etc.
Hope this helps~
Answer:
The answer will be 1.344 cents
Explanation:
100 W = 0.1 kW
the kWh =Power(W) x Time(Hour)
0.1 kW x 24 hours = 0.24 kWh
0.24 kWh x 5.6 cents per kWh = 1.344 cents