Which of the following is not in our solar system

star

black hole

asteroid

comet

A 5000-kg freight car runs into a 10,000-kg freight car at rest. They couple upon collision and move with a speed of 2 m/s. What was the initial speed of the 5000-kg car? A) 4 m/sB) 5 m/sC) 6 m/sD) 8 m/sE) none of these

A pendulum takes 6.0 seconds to swing through 5 complete cycles. What is the period of the pendulum?

What is the main driver of the water cycle

What structural adaptations do you think humans will develop

If a photon has a frequency of 5.20 * 1014 hertz, what is the energy of the photon? Given: Planck's constant is 6.63 * 10-34 joule·seconds.

Explain why meteorologists compare new weather maps and weather maps that are 24 hours old

Describe the uses of compound pulleys

Why do cities on the East Coast have warmer climates than cities on the West Coast at similar latitudes?

What energy transformations take place when you eat a taco and then go for a jog around the neighborhood?

What is the kinetic energy of a 1.40 kg discus with a speed of 22.5 m/s?