A black hole is a star that has

begun to collapse in on itself

too little gravity to emit light

gotten to the middle of its life

become too bright to see

Suppose the angle of reflection measures 40 degrees. What is the angle of incidence? A. 40 degrees B. 50 degrees

Which reactance will increase when the angular frequency in the circuit increases?

Tell how each factor will affect the reaction rate. how does an increase in the surface area of a solid affect the rate of its reaction with a gas?

The most important factor in determining the development oflife on earth is

You are alone in a large, completely dark auditorium on Earth. What kind of telescope should I use from the other side of the auditorium to detect the electromagnetic radiation emitted by your body?

If almost any system in stable equilibrium is slightly disturbed, it will then exhibit simple harmonic motion because 1. the change in potential energy is proportional to the cube of the displacement from the equilibrium position. 2.

Is the following statement true or false? Nuclear fission occurs naturally in stars.

Why is it useful to calculate average speed?

Which describes freefall

Suppose you were examining a pulsing radio signal from a stellar remnant in a distant part of the Milky Way.