A group of a few thousand stars that are loosely held together by gravity is called a

Which statements describe planetesimals? Select three options. They are the origins of planets. They formed from gas and dust. They were created during the big bang. They are believed to have developed in debris disks.

Does sound travel faster or slower when the air gets warmer?

A physics major is cooking breakfast when he notices that the frictional force between his steel spatula and his Teflon frying pan is only 0.330 N. Knowing the coefficient of kinetic friction between the two materials is 0.

What controls the traits an organism has?

In the formula used to solve problems related to the first law of thermodynamics what does Q represent?

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band

How would you explain photosynthesis to a new student in class

If the abosolute of a gas is 600 k, the temperature in degrees Celsius is

How does an electromagnetic wave propagate itself? a. A changing magnetic field induces an electric field perpendicular to the magnetic field. b. A changing electric field induces a magnetic field perpendicular to the electric field. c.

Which of the following is an example of convection? A. hot air rising and cooler air falling B. a hot object transferring heat to a cooler one C. a hot oven warming the air around it D. the rays of the Sun warming the earth