Cellulat telephone operate with radio waves, a form of Electromagnetic waves
Answer: 2.13 E 4 J
Explanation: Heat absorbed = mass * specific heat capacity * change in temperature
= 0.5 * 387 * (400 - 290) J
= 0.5 * 387 * 110 J = 21285 J = 2.13 E 4 J
Answer:
Kinetic energy and potential energy.
The term 'mechanical energy' refers to the sum of the kinetic energy and the gravitational potential energy of an object,
The position vector of the bullet has components
The bullet hits the ground when , which corresponds to time :
The bullet travels 168 m horizontally, which would require a muzzle velocity such that