The mysterious visitor that appears in the enchanting story the little prince was said to come from a planet that “was scarcely any larger than a house! ” assume that the mass per unit volume of the planet is about that of earth and that the planet does not appreciably spin. take the diameter of the planet to be 14 m. approximate (a) the free-fall acceleration on the planet's surface and (b) the escape speed from the planet.

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)