A sphere of radius R1=0.310R1=0.310 m and uniform charge density −16.5−16.5 μC/m3 lies at the center of a neutral, spherical, conducting shell of inner and outer radii R2=0.543R2=0.543 m and R3=0.745R3=0.745 m, respectively. Find the surface charge density on the inner and outer surfaces of the shell.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

What do you think car designers do if the damage caused by a crash test is too severe?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.