how much chemical energy must be supplied to a car engine if we want it to produce 5000J of kinetic energy and it is 45% efficient

You are swimming with your buddies on a beach in the surf. you leave your cooler and supplies on the beach, and after a half hour you swim back to shore, but your stuff isn't there. you look along the beach and see your cooler 200 m down the beach.

Which of the following values are in the domain of the function graphed below? Check all that apply.

According to Archimedes' principle, the mass of a floating object equals themass of the fluid displaced by the object. A swimmer is floating ina nearby pool; 95% of her body's volume is in the water while 5% of herbody's volume is above water.

Which of the following correctly compares UV rays and infrared waves? Infrared waves have higher energy than UV rays. Infrared waves have the same wavelength as UV rays. Infrared waves have lower frequency than UV rays.

What is the correct equation for calculating the kinetic energy of an object

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.