Scientists have observed that space is expanding between galaxies.

True or False

Surface temperature of planet mars range from - 89C to - 31C Express this temperature rang in Kelvin.

What is true about valence electrons? They are those electrons that are closest to the nucleus They are those electrons that are neutrally charged They are those electrons that are found in the nucleus They are those electrons that are furthest from

Describe the evolution of a pulsar over time, in particular how the rotation and pulse signal changes over time.

If something is hot, does it contain heat or thermal energy? neither heat only thermal energy only either one because they are the same thing

What should you do if your boat capsizes answers?

Applying ideas in earthquakes that cause the most damage, at what depth would movement along a fault most likely occur?

What factors increase a wave's amplitude?

Which, at the same temperature, will cool slower on a hot day a. bread b. watermelon c. potatoes d. dry beans

The kinetic molecular theory predicts that the pressure rises as the temperature of a gas increases because: a. the average kinetic energy of the gas molecules decreases. b. the gas molecules collide less frequently with the interior wall. c.

As you increase current, what happens to the strength of an electromagnet?