A 4 kg wagon is rolling across a frozen pond at 5 m/s when a 1.3 kg weight is dropped inside the wagon. What is the velocity of the wagon (which
now includes the weight in it) after the collision? I don’t need the work, just the answer.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.