What information does the color of a star tell you?

Which statement is a description of boyle's law? The temperature and volume of a gas are directly proportional when pressure is constant. The temperature and volume of a gas are inversely proportional when pressure is constant.

Which of the following is NOT an example of emitted light? A. bright rings around a planet B. a dim light bulb C. a shining flashlight D. a bright star

How much heat energy (in megajoules) is needed to convert 7 kilograms of ice at - 9 degrees Celsius to water at 0 degrees Celsius? A) 3.09 MJ B) 2.13 MJ C) 2.48 MJ D) 3.26 MJ

A clothes dryer uses about 6 amps of current from a 240 volt line. How much power does it use

An infrared wave has a wavelength of 6.5 * 10-4 cm. what is this distance in angstroms, å?

Which region of the early universe was most likely to become a galaxy?

A cyclist is riding his bike at a constant speed of S m/s, and experiences a frictional force between the bike and sidewalk of 100 N.

If a magnet is cut in paris what will be its north and south pole

How does the addition of sodium carbonate affect the cost of producing glass?

You strike a tuning fork. explain how the fork produces sound waves that you can hear.