How long would it take the Earth to complete 4 orbits around the Sun?

The reflecting surfaces of two mirrors form a vertex with an angle of 130 ∘. part a if a ray of light strikes mirror 1 with an angle of incidence of 48 ∘, find the angle of reflection of the ray when it leaves mirror 2.

You push a 2.3 kg block against a horizontal spring, compressing the spring by 17 cm. then you release the block, and the spring sends it sliding across a tabletop. it stops 88 cm from where you released it. the spring constant is 200 n/m.

In the diagram, the arrow shows the movement of electric charges through a wire connected to a battery.

Small rock substances that orbit the sun in groups is called

When an object is at rest do forces act on it

In what way does varying the length of the string change the vibration

A 1200 kg car moving at 7.8 m/s collides with a stationary car of mass 1500 kg. if the two vehicles lock together, what is their combined velocity immediately after the collision?

Which have more kinetic energy a 100g ball, a 200g ball, or a 500g ball explain

An internal combustion engine uses fuel, of energy content 44.4 MJ/kg, at a rate of 5 kg/h. If the efficiency is 28%, determine the power output and the rate of heat rejection.

Fleas often live on dogs or cats and bite them for meal of blood. This can be harmful to the cat or dog that is bitten. What type of symbiotic relationship is that?