What is the equivalent resistance of a 20 ohm and a 5 ohm resistor connected in parallel? (1 Point)

What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl,max are applied?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?