The united states possesses the ten largest warships in the world—aircraft carriers of the nimitz class—and is building two more. suppose one of the ships bobs up to float 10.5 cm higher in the ocean water when 51 fighters take off from it in a time interval of 25 min, at a location where the free fall acceleration is 9.78 m/s2. the planes have average laden mass of 28900 kg. find the horizontal area enclosed by the waterline of the ship. (use 1030 kg/m3 as the density of ocean water.)

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.