Q: what's the difference between free fall and someone sky diving? -please use terms velocity, force, acceleration, (g), free fall, and terminal velocity!

(include force due to gravity, force due to air resistance, and acceleration due to gravity if you wish too!) it’ll be more helpful if you do

EXPLAIN FULLY

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.