A device that changes mechanical energy to electrical energy by rotatin a coil of wire through a magnetic field is called B. Generator
Answer:
Pressure is defined as force per unit area. The standard unit for pressure is the Pascal, which is a Newton per square meter.
P= A/F
Work done = force x distance = 40 x 2 = 80 Joules.
Answer:The energy of the wave by a factor of 4
Explanation: