Calculate the force a piano tuner applies to stretch a steel piano wire 8 mm, if the wire is originally 0.94 mm in diameter and 1.43 m long.

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped

Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?