A mass of 25kg is suspended from a steel wire of modulus 200GPa and diameter of 2mm a) What is the stress on the wire?
b) How much would the wire extend if its original length was 5m?

What do you think car designers do if the damage caused by a crash test is too severe?

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?