What will be the outcome of putting litmus paper into rainwater?

a) red paper turns blue, blue paper turns red

b) paper red does not change, blue paper turns red

c) red paper turns blue, blue paper does not change

d) red paper does not change, blue paper does not change

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.