A runner completes a full cycle on a circular track with a radius of 100 meters in 2 minutes. Find the total displacement of the runner after 4 minutes. ( circumference = 2πr where π=3, and 1 min=60s) 0 m

5 m

600 m
1.2 m

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

How do the kidneys affect homeostasis

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?