A spring is compressed 1.3 cm. How far must you compress a spring with twice the spring constant to store the same amount of energy?

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s