Hypothesis
Before you begin your lab, review the procedures. Then write a hypothesis that reflects what you think will happen to the water temperature. Record your hypothesis as an “if, then” statement.
My hypothesis is that if we measure both cold and hot water

Procedure
1. Gather materials.
2. Measure 50 ml of hot water and 50 ml of cold water into separate foam cups.
3. Use a thermometer to measure the temperature of hot water and the cold water. Record your prediction for the final temperatures.
4. Pour the hot and cold water into a third foam cup.
5. Allow some time for the thermometer to reach a final temperature, then measure the temperature of the water. Record the temperature in the data table.
6. Repeat for a total of three trials.

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c

Aball of mass 0.3kg is released from rest at a height of 8m.how fast is it going when it hits the ground? accleration due to gravity is g=9.8m/s