Marked out of 1.00 Flag question
Consider two identical conductor spheres, A
and B. Initially, sphere A has a charge of
-80Q and sphere B has a charge of +40Q. If
the spheres touched and then are separated
by a distance of 0.4m. What is the resultant
force between them?(Q=6uC)
Select one:
OON
1.8X10%N, attraction
8.1X102N, attraction
1.8X10°N, repulsive
3.2X10ⓇN, attraction
3.2X10°N, repulsion
8.1X10N, repulsive

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?