Physics Answers

Calculate the hall effect of sodium based on free electron model.sodium has bcc structure and side of the cube is 4.28A

1. Ruel is on his way to the grocery store riding his motorcycle. He started at rest in front of their house. He then travels ahead so that his distance from where he started is given by the equation: x(t) = (2.4 m/s²) t²-(0.120 m/ s²) t³

a. Calculate the average velocity of the motorcycle for the time interval t=0 sec to t=10 sec.

b. Determine the instantaneous velocity at t=0 sec and t=5 sec

A particle moves on a line with a constant acceleration of 4ft/second. Find its equation of motion if s=2ft and v=-ft/sec, when t=2sec

A box has a mass of 5.8 kg. The box is lifted from the garage floor and placed on a

shelf. If the box gains 245 J of potential energy, how high is the shelf?

A 10×10^-6F capacitor is charged to a pd of 100V. A 2×10^-6F capacitor is connected in parallel with it, disconnected and discharged. This process of connection, disconnection and discharge is carried out four times. Calculate :

1. The fraction of the original charge which remains on the larger capacitor after the first connection.
2. The fraction of the original charge that remains after the fourth connection.
3. The final pd across the 10×10^-6 capacitor

The summit of Mount Everest is 8848.0 m above sea
 level, making it the highest summit on Earth. In 1953, Edmund Hillary was the first person to reach the summit. Suppose upon reaching there, Hillary slid a rock from rest with a 32.0 g mass down the side of the mountain. If the rock's speed was 24.0 m/s when it was 7690.0 m above sea level, how much work was done
on the rock by air resistance?

Determine the strain tensor of a long rod of length / hanging vertically from the celling in a gravitational field of strength g.

Determine the deformation of a spherical hollow sphere of inner and outer radius R₁ and R₂ respectively in its own gravitational field. The density of the material is p.

Find the strain tensor inside an infinite hollow cylinder of inner and outer radii R₁ and R₂ respectively and deformed by uniform pressure p1 inside and p2 outside.

Consider a cylindrical rod of length I placed vertically on table. A uniform force per unit area p is applied on the upper surface of the rod. Find the strain tensor inside the rod. Consider gravity is uniform through out the rod and the gravitational acceleration is g.