Answer:
Explanation:
Given
density of balloon
density of air
volume of balloon
If balloon is rising then
where
divide by
Magnetic forces can cause charged particles to move in circular or spiral paths. Particle accelerators keep protons following circular paths with magnetic force. The magnetic force is perpendicular to the velocity, and so velocity changes in direction but not magnitude. Uniform circular motion results.
The brakes on a 15,680 N car exert a stopping force of 640 N. The car's velocity changes from 20.0 m/s to 0 m/s.
Answer:
shoulder
it is at the shoulder region
Explanation:
shoulder