PLEASE HELP ME IS IS DUE BY FOUR THIRTY! I WILL GIVE BRAINLIEST TO THE FIRST PERSON WITH A VALID ANSWER! You wish to push a cart across a frictionless surface, so you apply 20.0 N of net force for a period of 3.0 seconds. As a result the cart goes from 0 m/s to 2.3 m/s. What is the mass of the cart? Show your work.

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

Which fators influence ocean currents

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass