The mass of the asteroid is 9000 kg, and it is

approaching Earth at 45 m/s. If the rocket has a mass of 1800 kg, what

velocity must it have to completely stop the asteroid after collision?

A. - 225 m/s

B. 306 m/s

c. 45 m/s

D. - 116 m/s

Andre has a small glass with cold juice in it. He walks outside on a hot day, and places the glass on a table in front of his house. He has to go back in his house, forgets about his juice, and comes back outside after a few hours.

What are gravitational waves?

A horse does 910 J of work in 380 seconds while pulling a wagon. What is the power output of the horse? Round your answer to two significant figures. The power output of the horse is W.

who described atoms as having a positive nucleus with electrons that have different energies at different distances from the nucleus.

Which rock type can be formed by adding heat and pressure to any of the three types of rock? a. igneous rock b. no rock type forms this way. c. metamorphic rock d. sedimentary rock

3. Applying Concepts Explain why a canoe that has hollow, water- tight compartments on its ends won't sink, even if it is capsized.

If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting farther from the pivot must produce the greater torque about the pivot. A) true B) false C) unable to decide without knowing the shape of the object

Standard voltage for electrical circuits in the United States is 120 volts. Is this the standard voltage in other countries?

An astronaut on the planet Trappist-1b tosses a rock horizontally with a speed of 7.95m/s. The rock falls through a vertical distance of 2.35m and lands horizontal distance of 9.57m from the astronaut.

Whicg of the following is not a force that would act on a bicycle as it moves down a street gravity air resistance fluid friction sliding friction