Atomic and Nuclear Physics Answers

From the known atomic masses (nndc website), compute the Q-value of the decay

230Th →226Ra + α

Calculate the kinetic energy and velocity of the daughter nucleus after the decay.

A stone thrown from the top of a building is given an initial velocity of 20.0 m/s straight upward. The stone is launched 50.0 m above the ground Determine the time at which the stone reaches its maximum height.

Assuming that 80% of the Mars surface is covered with water at an average

depth of 3.5 miles and the radius of the earth is given by 5.97x106 meter,

estimate the mass of the water on the Mars in kilogram

Charge q1 = 7.00 μC is at the origin, and charge q2 = -5.00 μC is on the x-axis, 0.300 m from

the origin as shown below. (a) Find the magnitude and direction of the electric field at point P,

which has coordinates (0, 0.400) m. (b) Find the force on a charge of 2.00 × 10-8 C placed at �

keplers third law of planetary motion states that the ratio of ?

Question 17

One of the main reasons why people constantly try to reduce the mass of objects is to be able to increase its speed and acceleration. All of the factors have an effect on each other. If something has much more mass, then exerting more force will make it move faster. This is an application on which law of motion? Explain

A bird flying due north with a velocity at 15m/s shed a feather in air current flowing at 20m/s due east. Find the resultant and direction of the feather.

Debye temperature of diamond is 2000k determine the mean velocity of diamond if the interatomic spacing is 1.45A. estimate the mode of a lattice vibration

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?