You are trying to get a pot of water to boiling. The pot of water has 2kgs of water in it, and starts at
20C. You want to get the pot to the boiling point
(100c), and the specific heat of water is 4.18 J per
KIKG (or 4.18J per kilogram per 1 degree of
temperature increase). How many joules of
energy do you need to heat up the water? If your
pot absorbs 5 Joules per second from the stove
burner, how long will it take to reach the boiling
point?

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.