Mercury is in the 80th position in the periodic table. How many protons does it have?

The object is not changing velocity; the object is not accelerating

How is the electromagnetic force different than both the gravitational force and the strong nuclear force? It has an infinite range. It acts at the subatomic level. It is repulsive. It holds protons together.

How much force does an 88kg astronaut exert on his chair while accelerating straight up at 10 m/s^2

Why is gravity important in the solar system

A note on a piano vibrates 262 time per second. What is the period of the wave

A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His hand stops the ball in 0.0100 s. What is the force exerted by his glove on the ball? Assume the ball slows down with constant acceleration.

State the law of conservation of energy in your own ords

The malfunction indicator light in an OBD II system is flashing. Technician A says that this simply indicates a soft failure. Technician B says this means the problem could be damaging the catalytic converter. Who is right? A. Technician A only B.

What are some methods humans have used to control flooding and what has been done to worsen the effects of flooding?

Suppose an electron is moving with a constant velocity until it encounters a positively charged sphere on its right. How does the sphere alter the trajectory of the electron? a. It has no effect on the trajectory of the electron b.