the electrostatic force between two point charges is 2.8 x 10^-5 N. If the distance between them doubles, the charge of one of the points quadruples and the charge of the other point is cut by a factor of 3. What will the new force between them be?

Six solutions are made, each with a y concentration of 1.0 μm and varying concentrations of ab as shown below. based on the concentrations, rank the solutions in decreasing order of reaction rate.

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

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.