A substance with a definite shape and volume is a

phase of matter

When you run outside you transform what energy into what energy

Which of the following describes when heat is transferred as a form of light? Question 1 options: Radiation Conduction Convection Sublimation

What would increase the reaction rate?

if a man has a mass of 83 kilograms on earth, what will the force of gravity on his body be on the moon

A rigid cube (each side is 0.10 m) is filled with water and frozen solid. When water freezes its volume expands about 9%.

Based on the number of valence electrons, what is the correct formula when nitrogen bonds to hydrogen? A) NH2 B) NH3 C) NH4 D) N2H

Choose the correct statement about the currents through the elements. Choose the correct statement about the currents through the elements. The currents in series-connected elements are not the same and depend on a current or a voltage source.

5 potential causes of infertility

Suppose you place a ball in the middle of a wagon, and then accelerate the wagon forward. Describe the motion of the ball relative to the ground. - Describe its motion relative to the wagon.

Water is poured into a container that has a leak. The mass 'm' of the water is given as a function of time 't' by, m=5t^0.8 - 3t + 20, with t>=0, mass in grams and t in seconds a. at what time is the water mass greatest, and b.