Very dry glasses; hypothesized to be meteoritic splash

A proton with a kinetic energy of 0.20 keV follows a circular path in a region where the magnetic field is uniform and has a magnitude of 60 mT. What is the radius of this path?

a. 4.1 cm b. 2.9 cm c. 3.4 cm d. 5.1 cm e. 2.4 cm

The time derivative of a vector is a:

A. Either a scalar or a vector. B. Tensor. C. Scalar. D. Vector.

A child runs and jumps tangentially onto an initially stationary playground merry-go-round. As a result, the merry-go-round begins to turn. Explain in terms of the child-merry-go-round system

What will be an ideal response?

Charge of uniform density 50 nC/m3 is distributed throughout the inside of a long nonconducting cylindrical rod (radius = 5.0 cm). Determine the magnitude of the potential difference of point A (2.0 cm from the axis of the rod) and point B (4.0 cm from the axis)

a. 2.7 V b. 2.0 V c. 2.4 V d. 1.7 V e. 3.4 V