Question

Name (1 point) Why do raindrops fall with constant speed during the later stages of their descent? 4. a The gravitational force is the same for all drops Air resistance just balances the foree of gravity The drops all fall from the same height b. c. d. The force of gravity is negligible for objects as small as raindrops e. Gravity cannot increase the speed of a falling object to more than 32 ft's then (l point) An object moves around a circle. If the radius is doubled keeping the speed the same the magnitude of the contripetal force must be: a. twice as great b. half as great c. four times as great d. one-fourth as great e the same 6. ( point) One end of a 1.0-m long string is fixed, the other end is attached to a 2.0-kg stone. The stone swings in a vertical circle, passing the bottom point at 4.0 m/s. The tension force of the string (in newtons) at this point is about: a. 0 b. 12 c. 20 d. 32 e. 52 7. (2 points) At what angle should the roadway on a curve with a 50m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy (and the frictional force is zero)? a, 0 b. 16 c. 18° d. 35° e. 73

Will upvote guaranteed