Light whose waves all have the same wavelength, direction, and coincidental peaks is called:

a) coherent light. b) incandescent light. c) fluorescent light. d) neon light

Hana fills a cup with sandy ocean water. She pours the mixture through a filter. What does she collect that passes through the filter? a sample of pure water a solution of salt in water a suspension of sand in water a colloid of salt in water

How much work must be done to bring three electrons from a great distance apart to 3.5*10-10 m from one another (at the corners of an equilateral triangle) ?

What is the distance covered by a Freely falling object 5 seconds after being dropped? After 6 seconds?

Why are the moons of uranus and neptune so dark?

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is 340 m/s, how high is the cliff?

If a car goes along a straight road heading east and speeds up from 45 ft/s to 60. ft/s in 5 sec, calculate the acceleration

An element in period 4 would have how many electron shells

Olivia wants to find out whether a substance will fluoresce. She says she should put it in a microwave oven. Do you agree with her? Why or why not?

A skydier jumps out of a hovering helicopter so there is no forward velocity. what is the skydivers acceleration/11170085/84c6e0eb? utm_source=registration

A book of 500 leaves has a mass of 1kg if its thickness is 5cm what are the mass and thickness of each leaf