IP Jim is speeding toward James Island with a speed of 24 m/s when he sees Betsy standing on shore at the
base of a cliff (Figure 1). Jim sounds his 330 Hz horn.

Calculate the frequency Jim hears in the echo from the cliff.

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90