Kenetic energy as potential energy is stored energy
Answer:
We can apply Boyle's law here, which state that for a fixed temperature and amount of gas, the volume of a gas is inversely proportional to the pressure. Thus,
PV = constant
780 x 100 = 880 x V
V = 88.6 ml
Answer:
1) 2.44 joules
2) 7.73 m/s
3) 7.6 joules
Explanation:
Kinetic energy (K) of a particle is:
(1)
with m the mass, and v the velocity
1) Because we already now velocity on A (va) and the mass of the object we can calculate its kinetic energy:
2) Because on B we know mass and kinetic energy we should solve (1) for v and use our values to find the velocity on B:
3) Work-energy theorem states that the change of kinetic energy of an object is equal to the total work done on it, so:
Answer:
Explanation:
As we projected the balloon at speed vo at an angle of 29 degree
so the two component of velocity is given as
now we know that in x direction we have
in y direction we have
now we have