If you walk 1.4 km north and then 4.8 km east, what are the magnitude and direction of your resultant displacement? a. magnitude: 5 km; direction: 73.7 degrees east of north b. magnitude: 4.6 km; direction: 73.7 degrees east of north c. magnitude: 5 km; direction: 16.3 degrees east of north d. magnitude: 4.6 km; direction: 16.3 degrees east of north

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.