An object has 100 J of kinetic energy and a mass of 2 g. How fast was it traveling?

A physics professor claims in court that the reason he went through the red light (λ = 660 nm) was that, due to his motion, the red color was Doppler shifted to green (λ = 510 nm). How fast was he going?

Charges cannot flow without: a. voltage. b. low resistance. c. high resistance. d. a gap in the circuit.

Environmental geography is where the focus is on what

Twenty percent of american households own three or more cars. a random sample of 144 american households is selected. let x be the number of households selected that own three or more cars.

A car starts from rest and accelerates from u seconds until it reaches a speed of 10ms the car then travels at 10ms for 2u seconds. the diagram shows the speed time graph for journey.

What will occur if the steepness of an inclined plane is decreased?

A 12,000-N car is raised using a hydraulic lift, which consists of a U-tube with arms of unequal areas, filled with incompressible oil with a density of 800 kg/m3 and capped at both ends with tight-fitting pistons.

The standard metric units of measurements for electric field strength are?

What steps are involved in converting potential energy to kinetic energy, or kinetic energy to potential energy?

A 50 Newton box is moved a distance of 12 meters. How much work was done on the box?