Light waves

A) Do not require a medium

B) can not travel through a vacuum

C) are not electromagnetic radiation

D) do not travel in straight lines from the source

What variables should you keep constant in initial speed

Light of wavelength 480 nm illuminates a double slit, and the interference pattern is observed on a screen. At the position of the m = 4 bright fringe, how much farther is it to the more distant slit than to the nearer slit?

Henry sets his keys on a wooden table. He then takes a powerful magnet and positions it below the table and the keys. He finds that he is able to drag the keys along the table by moving the magnet. This demonstrates that A.

What happens to a chemical reaction when the temperature is increased?

Type of force that holds the nucleus of an atom together

Ari, a young patient who is regularly treated by a psychiatrist, feels compelled to carry out repetitive tasks the same way very frequently. If Ari does not conduct these tasks with extreme precision, he can feel extremely nervous and uncomfortable.

A friend says, "Stars produce energy by a fusion chain reaction of helium into hydrogen." Evaluate the validity of this statement. A) It is an valid statement. Stars produce energy by a fusion chain reaction of hydrogen into helium.

If the mass of a material is 42 grams and the volume of the material is 15 cm^3, what would the density of the material be? answer: Unit:

35. An object of mass m moving at speed v0 strikes an object of mass 2m which had been at rest. The first object bounces backward along its initial path at speed v0.

Calculate the change in the canister pressure when the outside temperature changes from 72 ∘f to 80 ∘ f.