Answer:
Explanation:
Given that
Constant current I=15A
Inductance L=2.8H
a. Current changes from 15A to 0A.
∆I=0-15=-15
For a time of t=75ms=0.075s
EMF=?
EMF is given at
EMF=-L(∆I/t)
EMF=-2.8×-15/0.075
EMF=3.15V
b. Energy stored?
Energy stored is given as
E=½LI²
E=½×2.8×15²
E=315 J
c. Rate of energy? Which is power and the rate of energy is given as
Power=Energy/timetaken
Power=315/0.075
Power=4200W
P=4.2KW
Answer:
12.74 ms^-1 download
Explanation:
v=28.2, a=9.81
start from rest u=0
v=u+at=0+(9.81)t=28.2
t=2.875...
it reach 1.4 second before hitting the ground:
t=1.4, u=0, a=9.81
v=u+at=0+(9.81)(1.4)=12.74
Answer: No! Animal cells cannot be broken down further into living cells.
Answer:
Mass as a Measure of the Amount of Inertia
All objects resist changes in their state of motion. All objects have this tendency - they have inertia.
Explanation:
hope this helps
