Which of these are physical changes in matter? Check all that apply. boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese

After exercise your heart rate is

A charged object cannot attract a neutral object. a. True b. False

The springs of a 1000 kg car compress 5.5 mm when its 68 kg driver gets into the driver's seat. If the car goes over a bump, what will be the frequency of vibrations?

If a car travels from town A to town B on one road at different speeds and stops at a red lights knowing the distance between the towns and the Total time if the trip can allow you to calculate?

you are trying to figure out the voltage of a battery when you know the current and the resistance. the current (i) is 25 Amps, and the resistance (R) is 10 ohms. Use the right form of I=VIR

Charlotte, a 60.0-kg skin diver, shoots a 2.0-kg spear with a speed of 15 m/s at a fish who darts quickly away without getting hit.

All objects are attracted to each other by the force of a. weight. b. mass. c. inertia. d. gravity.

landslides and mudslides caused by lava flows are ___ deadly than the lava flow itself. a. more b. less

3. How is electric potential different than electric potential energy?

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor