20 poir 7. Two carts, each with a mass of 1.5 kg, move toward one another. a). If
the cart moving left is traveling at 10 m/s and the cart moving right is
traveling at 6 m/s, what is the magnitude and direction of the total
momentum of the system? b. What is the total momentum of the system
if the two carts have the same speed? *

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?