. É dado o movimento S = 100 + 8t, no (S. I) Determine:

a) o espaço inicial e a velocidade;

b) o espaço quando t = 5s;

c) o instante em que o móvel se encontra a 500m da origem dos espaços;

d) se o movimento é progressivo ou retrógrado.

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d

If a hiker that weighs 600 newtons climbs a 50 meter hill, how much gravitational potential energy has the hiker gained?