A block oscillating on a spring has period of 2 s What is the period if the block’s mass is doubled? Note that you do not know the value of either m or k, so do not assume any particular values for them. The required analysis involves thinking about ratios.

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

How many neutrons does plutonium -196 with an atomic number of 78.

Acar jack with a mechanical advantage of 6 needs to produce an output force of 600 n to raise a car. what input force is required? 6 n 100 n 600 n 3,600 n