Atomic and Nuclear Physics Answers

How long does it take for 60.0 percent of a sample of radon to decay

A 50.0-kg child stands at the rim of a merry-go-round of radius 2.00 m, rotating with an angular speed of 3.00 rad/s.

(a) What is the magnitude of the child’s centripetal acceleration?

(b) What is the magnitude of the minimum force between her feet and the floor of the carousel that is required to keep her in the circular path?

(c) What minimum coefficient of static friction is required? Is the answer you found reasonable? In other words, is she likely to stay on the merry-go-round?

Description:Two equal charges are separated 75cm apart in free air. Calculate the quantity of either charge if the force between them is 0.17N. What will be the quantity if the charges are situated in an insulating medium of dielectric constant= 10?

Two equal charges are separated 75cm apart in free air.

Calculate the quantity of either charge if the force between them is 0.17N.

What will be the quantity if the charges are situated in an insulating medium of dielectric constant= 10?

A metal is tested to have a charge of 697.6C. How many electrons are added to it to acquire the charge?

If two similarly charged metals are brought 1.5m apart in a medium of dielectric constant 2, calculate the force between them.

Is the force attractive or repulsive?

what are the difference between ion sources and the cyclotron explain with example

Estimate the time required for a 5 MeV alpha particle to slow down

and stop in silicon. Repeat for the same particle in hydrogen gas?

A beam of 1MeV electrons strikes a thick target. For a beam

current of 100 microamperes, find the power dissipated in the

target.

. Estimate the time required for a 5 MeV alpha particle to slow down

and stop in silicon. Repeat for the same particle in hydrogen gas

Indicate which of the three major interaction processes

(photoelectric absorption, Compton scattering, pair production) is

dominant in the following situations:

(a) 1MeV gamma rays in aluminum.

(b) 100 keV gamma rays in hydrogen.

(c) 100 keV gamma rays in iron.

(d) 10 MeV gamma rays in carbon.