How many calories are equal to one BTU? (One calorie = 4.186 J, one BTU = 1 054 J.)

a. 0.252b. 3.97c. 252d. 397

If the gravitational pull on the moon on earth were the same over all parts of earth, would there be any tides?

Elena makes a table to organize the functions of electric motor components. Which functions belong in the cells marked X and Y? component function brush X commutator Y A.

A 300 g bird is flying along at 6.0 m/s and sees a 10 g insect heading straight towards it with a speed of 30 m/s. The bird opens its mouth wide and swallows the insect. a. What is the birds speed immediately after swallowing the insect? b.

Find the velocity and direction of a Projectile of a shot which passes in a horizontal direction just over the top of building which is 50m off and 25m height.

What are the relative positions of the sun moon and earth during a full moon?

A transformer has a primary coil with 700 turns and a secondary coil with 350 turns. If the output voltage is 410 volts, what is the input voltage? * a.) 245,000 Volts b.) 205 Volts c.) 2 Volts d.) 820 Volts

Your odometer of your car says 54 123 miles when you start your trip, your watch says 9 45 AM When you get to your estination the odometer says 54 miles and your watch says 11 45 AM What is your average velocity (assuming you were traveling due

Briefly explain how an electric motor works.

When is a hypothesis developed in the scientific method? before there is a question after a question has been identified and observations are made after an experiment if the experiment justifies one

Interactive LearningWare 4.1 reviews the approach taken in problems such as this one. A 1800-kg car is traveling with a speed of 14.0 m/s.