What happened to an iron bar if it is heated from 32 degree Celsius to 64 degree Celsius

A 95 kg clock initially at rest on a horizontal floor requires a 650 n horizontal force to set it in motion. after the clock is in motion, a horizontal force of 560 n keeps it moving with a constant velocity.

What is astrology the study of

I will fan and give 2 medals! Why is it necessary to be able to replicate the results of a scientific experiment? (this is short answer)

Compare the density, weight, mass, and volume of a pound of gold to a pound of iron on the surface of Earth.

The components of vector A are Ax = + 2.2 and Ay = - 6.9, and the components of vector B are given are Bx = -6.1 and By = - 2.2. What is the magnitude of the vector B - A

What is the most advanced life form on earth

How do power plants generate electricity?

How much work would it take to move a coulomb charge across a 4 volt potential difference?

Why do people eat vegetables? Not just to stay healthy! But why else do we eat and need vegetables?

How many additional electrons does this atom of oxygen need in its valence shell to satisfy the octet rule?