How many Joules of heat would be required to heat 0.5 kg of aluminum by 2K? A) 300 J B) 450 J C) 900 J D) 1800 J

A giraffe walking slowly by a field unbalanced or balanced force

The power of a machine is 6000 W. This machine is scheduled for design improvements. Engineers have reduced the time for the output by one half from 15 s to 7.5 s. What work would be required to cut the time in half. Step #1 Step #2 Step #3

Which of the following are considered vectors? Check all that apply. A. Time B. Area C. Displacement D. Velocity

If you move a substance from one container to a Nother and its volume changes the substance is a

How does latitude affect the solar energy that reaches the earth?

A crane lifts a 400 N crate full of baked beans 15 m. How much work was done by the crane?

High altitude high velocity rivers of air are called

A string of 18 identical Christmas tree lights are connected in series to a 130 V source. The string dissipates 61 W. What is the equivalent resistance of the light string? Answer in units of Ω.

For each of the following (a through d), indicate which is a variable and which is a constant:a. The number of minutes in an hour. b. Systolic blood pressure. c. Freezing temperature of water in degrees Kelvin. d. Ratings of daily anxiety.

Which of the following is NOT an example of kinetic energy being converted to potential energy A) A basketball player jumping for a rebound B) Releasing a compressed spring C) Sqeezing a rubber ball D) Pulling a sled uphill