Compute the magnitude of the charge per unit area
Compute the magnitude of the charge per unit area
Find the total electric-field energy U stored in the capacitor.
u=J
An adventurous archaeologist crosses between two rock cliffs by slowly going hand-over-hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope (Fig. 1) The rope will break if the tension in it exceeds
Figure 1 a) If the angle
b) What is the smallest value the angle
A block of mass m=2.20 kg slides down a 30 degree incline which is 3.60 m high. At the bottom, it strikes a block of mass=7.00 kg which is at rest on a horizontal surface in the picture. If the collision is elastic, and friction can be ignored, determine (a)the speeds of the two blocks after the collision, and (b) how far back up the incline the smaller mass will go.
Anovice pilot sets a plane's controls, thinking the plane will fly at