What type of radiation dose a microwave emit?

There are two pendulums with periods 1.5 s and 1 s, which one is longer, and which one is shorter.

If it takes a planet 2.8 * 108 s to orbit a star with a mass of 6.2 * 1030 kg, what is the average distance between the planet and the star? 1.43 * 109 m 9.36 * 1011 m 5.42 * 1013 m 9.06 * 1017 m

A metal's luster is due to energy from the nuclei of its atoms being given off as visible light the free flow of electrons between its atoms light energy being absorbed and given off again by its valence electrons valence electrons giving off energy

Headlights must be activated during times of darkness and when visibility is limited to what?

How did magnetism 'drive' the theory of plate tectonics?

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature of the medium the type of wave the type of medium

A sound level of 96 dB is how many times as intense as one of 90 dB?

Which type of waves are whale songs in an ocean?

Which is normally greater: static friction or sliding friction on the same object? Static friction is normally greater than dynamic friction. On the same object, static friction and dynamic friction are equal.

A child pulls a wagon 3.0 m using a force of 55 N at an angle 35° above horizontal. The force of friction on the wagon is 12 N. Calculate the net work done on the wagon