How does the speed ratio change as you switch between different gears on a bicycle, and how does this affect the force you need to pedal the bicycle?

Light strikes a mirror's surface at 33 degrees to the surface. what will the angle of reflection be? what is the angle betwwen incident ray and reflected way

Two firefighters are fighting a fire with identical water hoses and nozzles, except that one is holding the hose straight so that the water leaves the nozzle in the same direction it comes, while the other holds it backward so that the water makes a

Parallel wires exert magnetic forces on each other. What about perpendicular wires? Imagine two wires oriented perpendicular to each other and almost touching. Each wire carries a current. Is there a force between the wires?

Consider a single photon with a wavelength of lambda, a frequency of v, and an energy of E. What is the wavelength, frequency, and energy of a pulse of light containing 100 of these photons? A) 0.01lanbda, 0.01v, and 0.01E B) 0.

Electrical current in a wire

A 905 kg test car travels around a 3.25 km circular track. If the magnitude of the centripetal force is 2140 N, what is the car's speed?

Wave X has an amplitude of 5 and wave Y has an amplitude of 4. What will happen when the crest of wave X meets the crest of wave Y? A crest with an amplitude of 1 will form. A trough with an amplitude of 1 will form.

Which of the following codes is used to report the removal of 37 skin tags by electrosurgical destruction?

Two vectors which do not lie along the same line represent what kind of motion? A. Resultant motion B. Scalar motion C. One-dimensional motion D. Two-dimensional motion

What units do we use to measure volume