Emily uses a rifle to shoot a bullet at a target. the bullet has a mass of 13 grams. the rifle has a mass of 3,500 grams. when she shoots, the bullet accelerates 850 m/s2. according to newton’s third law of motion, the bullet is exerting the same force on the rifle. why doesn’t the rifle accelerate 850 m/s2?

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents