What do you think a black hole is

A star begins its formation as gravitational forces cause instability within a

The additional product of the nuclear fission reaction shown in the equation is _. (Hint: Pay attention to the coefficient.) * 23ZU + ón->36n+"3Ba + _ A-91Kr 36 B-92Br 35 C-93Kr 36 D-93Rb 37

The surface area of the skin of a person who is 70 inches tall and weighs w pounds can be estimated by s (w) equals=342 w superscript 0.425342w0.425 , where s is in square inches.

Saturn is 9.54 au from the sun. what is its distance from the sun in kilometers? a. 14,000,000 km b. 15,723,270 km c. 57,000,000 km d. 1,431,000,000 km

Your car is traveling behind a jeep. Both are moving at the same speed, so the velocity of the jeep relative to you is zero. A spare tire is strapped to the back of the jeep. Suddenly the strap breaks, and the tire falls off the jeep.

A 0.250-kg wooden rod is 1.35 m long and pivots at one end. It is held horizontally and then released. Part A What is the angular acceleration of the rod after it is released?

Ocean Currents: List two ways currents affect life on earth.

They are called short-period comets. Short-period comets are thought to originate in the Kuiper Belt, which is a belt of icy objects just beyond the orbit of the planet

The most common type of lighting unit utilized in street lighting is: a. metal halide lamps b. mercury vapor lamp c. high-intensity sodium vapor lamp d. incandescent lamp

a family drives from boston (100 miles away) to new york (500 miles away) in 10 hours. How fast were they were traveling?