When a certain isotope, such as Pu-239, is hit by a neutron, it will always split

into the same smaller nuclei.

true or false?

Missy Diwater, the former platform diver for the ringling brothers circus had a kinetic energy of 15,000 joules just prior to hitting the bucket of water. If missy's mass is 50kg, the what was her velocity.

A 20000 kg subway train initially traveling at 18.5 m/s slows to a stop in a station and then stays there long enough for its brakes to cool. The station's dimensions are 65.0 m long by 20.0 m wide by 12.0 m high.

The cross sectional area of an optical fibre is 6.3 x 10^-6 m^2 The intensity of the light entering the optical fibre is 3.2 x 10^7 W/m^2 Calculate the power of the light entering the optical fibre

While trees are not the largest level in the pyramid of numbers, they are still the base for both the pyramids of biomass and pyramids of energy. A. True B. False

A canon with a mass of 2,000 kg fires a 20 kg shell horizontally to the right with a velocity of 300 m/s. What is the recoil velocity of the cannon?

The amount of force needed to keep a 0.1kg basketball moving at a constant speed of 6 m/s on frictionless ice is ___ N

What three forms of kinetic energy can a polyatomic molecule have?

A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she deceler - ates at 2.0 m/s2. She reaches the ground with a speed of 3.0 m/s.

Why the weight of a body decreases with increases in distance from the earth's surface

On a fishing trip Justin rides in a book 12 km south. The fish aren't biting so they go for kilometers west. They then follow a school of fish 1 km north. What distance did they cover? What was their displacement?