How many black holes are there in the Andromeda galaxy?

Which type of electromagnetic wave has the greatest wavelength?

What happens when you put a metallic object on a charger while it is chstging?

Calculate: The time taken for a plane to travel 3,000 km at a speed of 200 m/s

A balloon is rubbed against a student's hair and then touched to a wall. The balloon "sticks" to the wall due to

A skydiver jumps from an airplane and falls freely for 5 seconds. If the sky diver's velocity increases by 49 m/s during that time, at which rate is the diver accelerating?

The SI unit for energy is the Joule (J). Sam wants to convert 338.25 J into kJWhich operation should he choose? a. He should multiply 338.25 by 10. b He should multiply 338.25 by 100. c He should divide 338.25 by 100. c He should divide 338.

A pet-store supply truck moves at 25.0 m/s north along a highway. inside, a dog moves at 1.75 m/s at an angle of 35.0° east of north. what is the velocity of the dog relative to the road

The speed of sound in air depends on temperature. a. True b. False

Drag each statement to the correct location on the table. Match the characteristics with the states of matter.

Which of the following changes can happen when the forces on an object are unbalanced? a. The object speeds up b. the object slows down c. the object changes direction d. all of the above