A sample contains 16.75 g of of the radioisotope U-236 and 50.25 g of its daughter isotope, Th-232. how long did it take for decay to take place of one half-life of U-236 Is 23 million years?

Which is a form of kinetic energy? a. gravitational energy b. chemical energy c. electrical energy d. sound energy

What does force equal mass times acceleration (f = ma) mass times velocity (f = mv) distance divided by time (f = d/t)

A 7.5 kg block is placed on a table. If it's bottom surface area is 0.6m2 how much pressure does the block exert on the table top?

The role of plants in the water, oxygen, nitrogen, and carbon cycles

a smal object has a mass of kg and a charge of. it is placed at a certain spot where there is an electric field. when released, the objkect experiences an acceleration of in the direction of the - x axis.

Which is a vector quantity speed or velocity

With a naked eye your are unlikely to see a "blank" in your lifetime. A - Comet. B - Shooting Star. C - Meteor. D - Planet.

If there is a current of 15A in a circuit for 5 minutes, what quantity of electric charge flow through the circuit?

Which universal force acts on protons and neutrons in an atom's nucleus?

How many turns are in the secondary coil of a step up transformer that increases voltage from 30 V to 150 V and has seven turns in the primary coil?