Select the two true statement about a free body diagram 1.) The arrow pointing down represents the force of gravity, and the arrow pointing up represents the force of the ground pushing back on the box

2.)The net force is unbalanced

3.)Gravitational force is pushing up on the box and the force of the ground is pushing down

4.)The net force is equal to zero

Which is the most accurate name for the ionic compound cas?

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.

An object is placed in front of a concave mirror between the pole and the focus of the mirror, what is the nature of the image formed by the mirror