The law of conservation of energy can be applied? A)as long as no friction is present

B)as long as all the forms of energy are mechanical

C)only if heat is not produced

D)under all normal situations

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as

What is the measurement of how fast an object moves relative to a reference point?

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.