A sinusoidal electromagnetic wave from a radio station passes perpendicularly through an open window that has area of 0.600 m2 . At the window, the electric field of the wave has an rms value 2.20×10−2 V/m . How much energy does this wave carry through the window during a 30.0-s commercial?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Which statement is true about an object that is moving in a circular motion due to centripetal force, f, when the radius of its circular motion is doubled? the new force then becomes equal to 2f the new force then becomes equal to f the new force then becomes equal to f/2 the new force then becomes equal to f2 the new force then becomes equal to 1/f