Physics, 21.05.2021 17:00 bbb4951

A radioactive sample has an activity R. For each of the following changes, indicate whether the activity would increase, decrease, or remain unchanged. HINT (a) The number of radioactive nuclei in the sample is doubled. The activity would increase. The activity would decrease. The activity would remain unchanged.
(b) The half-life of the radioactive nuclei is doubled. The activity would increase. The activity would decrease. The activity would remain unchanged.
(c) The decay constant is doubled. The activity would increase. The activity would decrease. The activity would remain unchanged.
(d) A time period equal to two half-lives is allowed to elapse. The activity would increase. The activity would decrease. The activity would remain unchanged.

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 15:30

Which of the following statements are true of solids? a.the particles do not vibrate. b.the particles are in a fixed location. c.they have strong intermolecular forces between the atoms or molecules. d.the particles have less kinetic energy than those of liquids or gases.

Answers: 1

Answer

Physics, 21.06.2019 22:10

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Answers: 3

Answer

Physics, 21.06.2019 22:30

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Answers: 1

Answer

Physics, 22.06.2019 00:30

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

Answers: 2

Answer

You know the right answer?

A radioactive sample has an activity R. For each of the following changes, indicate whether the acti...

Questions