Kt version wire of total resistance 0.030 2 is bent into a triangular loop shown below, and is bei
region containing a 2.0 T uniform magnetic field at a speed of 20 cm/s.
in isosceles right triangle (leg. 10 cm) leaving a magnetic field
B=2.0T

450
B = o
10cm
20cm/s
a. Calculate the magnetic flux through the loop as a function of t, where t is the time
triangular loop first emerges from the field. (Hint: What is c(t)?)

Follow these directions and answer the questions. 1. set up the ripple tank as in previous investigations. 2. bend the rubber tube to form a "concave mirror" and place in the ripple tank. the water level must be below the top of the hose. 3. generate a few straight pulses with the dowel and observe the reflected waves. do the waves focus (come together) upon reflection? can you locate the place where the waves meet? 4. touch the water surface where the waves converged. what happens to the reflected wave? 5. move your finger twice that distance from the hose (2f = c of c, center of the curvature) and touch the water again. does the image (the reflected wave) appear in the same location (c of c)? you may have to experiment before you find the exact location. sometimes it is hard to visualize with the ripple tank because the waves move so quickly. likewise, it is impossible to "see" light waves because they have such small wavelengths and move at the speed of light. however, both are examples of transverse waves and behave in the same way when a parallel wave fronts hit a curved surface.

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Which levels of government establish and implement educational requirements for minors