According to the law of conservation of momentum, the <u> TOTAL </u> amount of momentum of a group of objects does not change unless outside _____<u>FORCES</u>____ act on the objects.
A heat pump that uses work to move heat
Since the question above is looking for the SPEEd of the WAVE, the formula that should be used is SPEED = DISTANCE / TIME. You just need to substitute the distance (36 meters) and the time (15 seconds) to the formula. You should be able to get SPEED = 2.4 m/s.
Answer:
at rate the current change is 6.75 A / sec
Explanation:
given data
inductance L = 17 H
current I = 1.8 A
emf e = 70 V
to find out
At what rate must the current be changed
solution
we will apply here emf formula that is
emf = inductance (di/dt)
so here (di/dt) will be
di/dt = emf / inductance .......................1
put value of emf and inductance in equation 1 we get rate
di/dt = 81 / 12
di/dt = 6.75 A / sec
so at rate the current change is 6.75 A / sec
There’s no diagrams to choose from
