Author Question: A solar panel measures 80 cm 50 cm. In direct sunlight, the panel delivers 4.8 A at 15 V. If the ... (Read 68 times)

DelorasTo · **on:** Jul 28, 2018

A solar panel measures 80 cm 50 cm. In direct sunlight, the panel delivers 4.8 A at 15 V. If the intensity of sunlight is 1000 W/m2, what is the efficiency of the solar panel in converting solar energy into electrical energy?
a. 12
c. 18
b. 24
d. 6.0

Question 2

A turntable has a moment of inertia of 3.00 10-2 kgm2 and spins freely on a frictionless bearing at 25.0 rev/min. A 0.600-kg ball of putty is dropped vertically onto the turntable and sticks at a point 0.100 m from the center. What is the new rate of rotation of the system?
a. 20.8 rev/min
c. 33.3 rev/min
b. 22.7 rev/min
d. 27.2 rev/min