A model airplane is being flown at the end of a cord 20 feet long. If the speed of the airplane remains constant, but the cord is shortened to 15 feet, what will be the effect on the radial acceleration of the airplane

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?