What does the atomic number of an element represent?

A bicyclist and his bike together have a mass of 70 kg and a speed of 6 m/s. How much work would be done for the biker to accelerate to 10 m/s?

Why are the fingers of a human separated by gaps? a the cells in between were programmed to die b the cells in between failed to grow c the cells in between mutated d the cells experienced morphogenesis

A uranium nucleus is traveling at 0.94 c in the positive direction relative to the laboratory when it suddenly splits into two pieces. Piece A is propelled in the forward direction with a speed of 0.43 c relative to the original nucleus.

Two positions of the sun, moon, and Earth are described below: Position A: Moon is between the sun and Earth Position B: Moon and sun are at right angles to each other relative to Earth Which statement is true regarding the type of tides that can

A black hole in the universe is a An empty region in space b - A massive collapsed star c - A moon that is always turned to its dark side

Why does the moon have a layer of powdery "soil" on its surface?

What does the atomic number of an element represent?

As you slide a heavy box across the floor, friction applies a force of - 30 n over a distance of 2 m. how much work is done by friction?

Why are frames of reference important for motion

An aircraft travels 1000. km west and then travels 500. km west. what is its total displacement?