A star that is several thousand dimmer than the sun with a temperature than 10000 k would be classified as

If a polythene rod is rubbed with a dry cloth, what kind of charge would it gain? A) positive, due to extra protons. B) positive, due to electrons lost. B) negative, due to protons lost. D) negative, due to extra electrons.

Describe the following wave characteristics associated with Transverse and longitudinal waves-amplitude, wavelength, and frequency.

A 5.00X10^5 kg rocket is accelerating straight up. Its engines produce 1.250X10^7 N of thrust, and air resistance is 4.50X10^6 N. What is the rockets acceleration?

Which term identifies the dark smooth areas on the surface of the moon? craters terrae maria regolith

Sound waves move the most slowly through? solids liquids or gases

When light (or another wave) bounces back from a surface?

The idea that mental states are dispositions to behave in particular ways in certain Circumstances is known as

What device consists of coils with many turns and is used in speakers, motors, and other electronic equipment? magnet solenoid generator turbine

What can we conclude from observing an attractive force between a positively charged rod and an object?

In what state do hydrogen and helium exist in a star