An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.