Answer: The apple’s energy is converted to kinetic energy as it falls. When it hits the ground, the kinetic energy is transformed into heat energy.
Explanation:
The ultimate source of energy that powers the sun is the Mass energy of hydrogen fusing into helium, there is no other process than the annihilation of mass to give energy that has been advocated by Albert Einstein and it is capable of keeping the sun alive.
Using conservation of energy law:-
∑ work in = ∑ work out
and work= force* displacement
so when we wanted to move a 100kg a distance of 1m
we multiplied 100*1 = work out
so work in should be equal to 100*g Joules, where g is the acceleration due to gravity.
so workout = 100*g = 25*g *x (divide both sides by 25*g)
x=4m
by the same way:-
------------------------
work in = 100kg * 2m * g (m/
)= work out
so work out = 25*x*g = 200* g (divide both sides by 25*g)
x=8m
Answer:
-6.34 degrees.
Explanation:
Because this is a collision we can use the formula of linear momentum conservation.
The pin has an angle so it has two components of velocity, so:
applying the first formula:
The angle is given by:
the angle is -6.34 degrees.