What happens to energy when it is used

Would an astronauts mass change as she traveled from planet to planet? Explain.

DNA is made of chains of four smaller molecules called: Select one: a. DNAblers b. life blocks c. nucleotides d. mitochondrial bases

The volume of the moon is about 33% of the volume of the earth. true or false

The type of two-stroke engine that uses a spinning plate with a hole in it to control the flow of fuel to the cylinder is called a A. plate-port engine. B. rotary-valve engine. C. reed-valve engine. D. piston-port engine.

Permafrost characterizes the biome called

If a child ran into the road 65 to 70 feet ahead of your vehicle, what is the highest speed from which you could stop with good brakes before hitting him?

Which of the following describes a response to external stimuli? a rabbit runs away from a fox that is chasing it a woman drinks water when she is thirsty a boy eats food when he is hungry a person yawns when oxygen levels in the blood are low

Why do moon phases repeat about every 28 days

Which energy transformation takes place when a firecracker explodes

Newton's first law states that an object traveling with a constant velocity will remain traveling at a constant velocity unless an unbalanced force acts.