If the distance between two asteroids is halved, the gravitational force they exert on each other will

a) also be doubled
b) be half as great
c) be one fourth as great
d) will be 1/16 as great
e) be four times greater

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.