A charge Q1=217 uC is located at a point X, = -10 m, a second charge Q2= -368 uC is located at a point X2= -4 m and a negative charge Q3= -225 uC is located at point X3= 6 m. Find the magnitude of the force between Q1 and Q2.

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

What do you think car designers do if the damage caused by a crash test is too severe?

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s