When a high-mass star explodes, which of the following is left over in the center?

A. Black hole

B. Neutron star

C. White Dwarf

D. either a or b

At what angle North of East must the ship travel to reach its destination? Let East be 0◦ and North 90◦.

When an astronomer sees certain stars and galaxies that look much redder than expected, what conclusion might the astronomer draw about the motion of that galaxy?

Is this statement an observation or an inference? It must be raining outside. Explain.

John traveled East at 10 m/s for ten seconds. He realized he had gone too far and made a U-turn. He traveled West at 5 m/s for six seconds. Calculate John's displacement. a. 30 m b. 70 m C. 100 m d. 130 m

Im so hopeless no one can answer my homework question and its due tommorow : ( How much pressure is exerted when air is being compressed?

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.