Molecular Physics | Thermodynamics Answers

What is the pressure 8000 ft below the surface of the ocean? In SI and English units.

Two rods of brass and iron are fixed to a short cross bar. If the iron is 1m long, what must be the length of the brass rod that the distance AB between the free ends of the rods remain constant at all temperature? ( take αfe= 0.000012k, αbrass=0.000019k)

One mole of an ideal monoatomic gas goes through a cycle in a heat engine process z is isobaric, process x is isochoric,and process y is adiabatic.Find

1. The heat absorbed or release

2. The change in internal energy

3. The work done for each of the three processes and the whole cycle.

A cylinder of mass m and radius R has a moment of inertia of . The cylinder is released from rest at a height  on an inclined plane, and rolls down the plane without slipping. What is the velocity of the cylinder when it reaches the bottom of the incline?

1.   A 400.0-N sign hangs from the end of a uniform strut. The strut is 4.0 m long and weighs 600.0 N. The strut is supported by a hinge at the wall and by a cable whose other end is tied to the wall at a point 3.0 m above the left end of the strut. Find the tension in the supporting cable and the force of the hinge on the strut.

What is the angular acceleration of a ball that starts at rest and increases its angular velocity uniformly to 5 rad/s in 10 s?

A copper calorimeter weighs 100g when empty and 500g when half filled with water at 20oC 50g of dried ice are added and the final temperature of the mixture after all the ice has melted is 10oC. Calculate the specific latent heat of melted ice.

30g of metal at 90oC is placed at 20oC in a calorimeter of mass 70g made of the same metal. If the final temperature is 22.1oC. Calculate the specific heat capacity of the metal.

A 0.5 kg of air is compressed reversibly and adiabatically from 80 kPa and 60°C to 0.4 MPa and is then expanded at constant pressure to the original volume. Sketch the process on p-V and T-S diagrams, compute work transfer, heat transfer and change in entropy for whole path

What is degree of freedom at normal temperature.