What is the spring constant for a supermarket scale that stretches 0.01 m when a force of 4 N is applied

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction