A negative charge is moving across a rook from south to north. A magnetic field runs from East to west. In what direction is the magnetic force on the moving negative charge? A. Toward the East
B. Toward the west
C. Toward the floor
D. Toward the ceiling

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.