Apotential difference of 35 mv is developed across the ends of a 12.0-cm-long wire as it moves through a 0.27 t uniform magnetic field at a speed of 4.0 m/s. the magnetic field is perpendicular to the axis of the wire. part a what is the angle between the magnetic field and the wire's velocity?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

The slope of a velocity time graph over any interval of time gives the during that interval

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?