A bike weighing 40kgs was picked up from the bike shop. He rode 4000m at 8m/s before realising it had a scratch on it  What was the force needed to move the bike?

How does density impact the hydrosphere and atmosphere?

This is a bond in which a single pair of electrons is shared between a pair of atoms

Three particles A, B and C are thrown from the top of a tower with the same speed. A is thrown straight up, B is thrown straight down and C is thrown horizontally. They hit the ground with A. Equal speed at same time B.

What is the way to measure a wavelength

A truck has four times the mass of a car and is moving with twice the speed of the car. If Kt and Kc refer to the kinetic energies of truck and car respectively, it is correct to say that:A) Kt = 16Kc. B) Kt = 4Kc. C) Kt = Kc. D) Kt = 2Kc.

What happens to the motion of an object when the forces acting on it are balanced? A. The motion changes. B. The motion does not change. C. The motion speeds up. D. The motion slows down.

An object with a temperature of 0 Kelvin would not emit radiation. a. True b. False

When a bar magnet is broken into two pieces each piece has a north and south pole because a the magnetic fields reversed b every magnet is made of many aligned smaller magnets с bar magnets are permanent magnets d the magnetic poles have been

A box is being pulled to the right. What is the direction of the gravitational force?

An electron, starting from rest and moving with a constant acceleration, travels 2.0 cm in 5.0 ms. What is the magnitude of this acceleration?