How much heat energy is produced by 0.5 Wh of electrical energy? A. 2.6 Btu B. 0.15 Btu C. 1.7 Btu D. 0.4 Btu

A small fish is dropped by a pelican that is rising steadily at 0.50 m/s. a. After 2.5 s, what is the velocity of the fish? b. How far below the pelican is the fish after 2.5 s?

If a net force of 25 N is exerted over a distance of 4 m to the right on a 2 kg mass initially at rest and moves it, what is the final velocity of the object? v=_ m/s 20

Which of the following is example of direct observation

When a star is very hot, it's elements___. A. Take a little energy for the electrons to "jump" from one energy level to the next B. Take a lot of energy for the electrons to "jump" from one energy level to the next C.

How many hour are required to make a 3000 km trip if your average speed is 50 km/h?

In an experiment, 108 J of work was done on a closed system. During this phase of the experiment, 79 J of heat energy was added to the system. What was the total change in the internal energy of the system?

J. J. Thomsons experiments provided evidence that an atom

How does our sun differ from most other main sequence stars?

A large body of air hats has similar properties of a temperature and moisture is a

An ice rink is 200 feet long and 85 feet wide. The four corners of the rink are rounded to a radius of 24 feet. What is the surface area of the rink? Round the answer to the nearest square foot.