Which of these reactions is responsible for energy radiating from stars, including the sun?
a)
nuclear fusion
nuclear fission
an exothermic chemical reaction
an endothermic chemical reaction
3

Heterogeneous mixture with larger particles that never settle is

If the moon rises at a given location at 6: 00 p.m. today, about what time will it rise tomorrow night?

10. a person with a mass of 15 kg is walking uphill at a velocity of 2 m/s. what is the walker's momentum? a. 15 kg-m/s b. 30 kg-m/s c. 10 kg-m/s d. 13 kg-m/s 16. two bouncy balls colliding with each other is an example of what type of collision? a. inelastic collision b. elastic collision c. parallel collision d. mass collision 20 which of the following is considered to be a vector? a. temperature b. mass c. velocity d. time