Many ships in the harbor ___ during the hurricane last year.

The student with the most classes and best grades ___ to try hardest.

Nobody at the store ___ the new window display.

Caring for loved ones ___ an important part of life.

An electron travels through a uniform magnetic field directed to the right. The electrons velocity is directed out of the page, as shown in the figure above. The direction of the force on the electron due to the magnetic field at the instant shown is:

  Switch S in the circuit shown above has been closed for a long time. Suppose that the switch is opened for a time . Which of the following combinations of a differential equation and an initial condition can be used to solve for the charge on the upper plate of the capacitor as a function of time ? A rectangular circuit loop is shown with a battery on the left side labeled epsilon. Along the top wire is a switch labeled S. On the right side of the loop, a resistor labeled R is placed vertically. Inside the loop, a capacitor labeled C is connected vertically between the top and bottom wires. The bottom wire connects back to the battery.

The heating element of a coffee maker operates at 120 V and carries a current of 3.50 A. How long does it take to heat 1.50 kg of water from room temperature 23oC to the boiling point? Assume that no energy is lost in the process. ()

At time , a potential difference is suddenly applied to a coil with and . Determine the rate at which the current increasing when ?

A magnetic field is normal to the plane of a 0.15 m x 0.30 m rectangular coil of 120 turns. The magnetic field is increased uniformly from 0.10 T to 1.5 T. Find the time interval for the change if an emf induced in the coil is 1.2 V.

A capacitor restores energy when it holds charge . the same capacitor stores energy when it holds charge . what is the ratio ?