When does light refract?

when it travels through gases

when it crosses the boundary between two types of material

Light refracts every 2000 wavelengths.

when it travels through a vacuum

All contraceptives prevent STIs true or false

What is the meaning for law of conservation of momentum

Weather satellites are usually placed in north-south orbits because: they require a stationary transmitter. they focus on specific latitudes. they will eventually cover the entire globe. they areeasier to maintain and manage from earth

To pull a 53 kg crate across a horizontal frictionless floor, a worker applies a force of 180 N, directed 35° above the horizontal. As the crate moves 2.

A telephone line has a signal-to-noise ratio of 1000 and a bandwidth of 4 KHz. What is the maximum data rate supported by this line?

Why is it important for engineers to design bumper cars safely

What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is 1.75 m wide and 9.00 m below the top of the cliff?

Which statement describes how light behaves when it strikes a translucent material? A. Light is scattered. B. Light is transmitted. C. Light is reflected. D. Light is absorbed.

A certain gas is present in a 15.0 l cylinder at 2.0 atm pressure. if the pressure is increased to 4.0 atm the volume of the gas decreases to 7.5 l.

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite