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Use the information below to answer the three (3) following questions:A circular wire with radius r and resistance R is placed within a time-dependent but uniform magnetic field at t = 0 sec, as seen in the figure below.  The magnetic field is given by B(t) = B0 t2 and points out of the page.  Here, r = 2.7 cm, R = 2 Ω, and B0 = 8 mT/s2. What is the magnitude of the induced current at t = 3.7 sec?

A Treg cell deficiency could result in

Use the information below to answer the two (2) following questions:A circuit is constructed with two resistors and one inductor as shown below.  The values for the resistors are R1 = 2.5 Ω and R2 = 4.5 Ω.  The battery voltage is V = 12 V.  The switch S is initially open. After the switch has been opened for a long time, it is closed.  What is the magnitude of the voltage across L immediately after the switch is closed?

Which of the following best describes the image from a plane mirror?

Polarized light is to have its polarization plane rotated by 90°. In which of the following cases does the final beam have the greatest intensity?

A concave mirror has a focal length of 20 cm. What is the position (in cm) of the resulting image if the image is inverted and four times smaller than the object?

Use the information below to answer the four (4) following questions:Consider the electrical AC circuit shown.  It consists of an AC generator providing a voltage V(t) = 24 sin ((250 rad/s) t) volts, an unknown resistor, a 2 × 10-5 F capacitor, and an unknown inductor.  The impedence of the circuit is 140 Ω and the current lags the voltage across the generator by 25 degrees. What is the maximum energy stored in the capacitor?

A light ray whose frequency is 6 × 1014 Hz in vacuum is incident on water (n = 1.33). The wavelength of the light after it enters the water is (in nm)

Use the information below to answer the two (2) following questions:Two long parallel wires are separated by a distance of 1.5 cm.  The force per meter that each wire exerts on the other is 5 × 10-5 N/m, and the wires attract each other.  The current in one of the wires is I1 = 0.8 A. What is the current I2 in the other wire?

The magnetic field of the Earth is believed responsible for which of the following?