Author Question: A 1.20-kg ball is hanging from the end of a rope. The rope hangs at an angle 25.0 from the vertical ... (Read 325 times)

arivle123 · **on:** Jul 29, 2018

A 1.20-kg ball is hanging from the end of a rope. The rope hangs at an angle 25.0 from the vertical when a 15.0 m/s horizontal wind is blowing. If the wind's force on the rope is negligible, what drag force does the wind exert on the ball?

A) 32.3 N
B) 24.1 N
C) 3.68 N
D) 5.48 N
E) 11.8 N

Question 2

In beta minus decay, the number of protons in the nucleus is

A) decreased by 1.
B) decreased by 2.
C) increased by 1.
D) increased by 2.
E) remains unchanged.