simple harmonic motion is a special type of periodic motion or oscillation where the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement.
Answer:
a ) 2.68 m / s
b ) 1.47 m
Explanation:
The jumper will go down with acceleration as long as net force on it becomes zero . Net force of (mg - kx ) will act on it where kx is the restoring force acting in upward direction.
At the time of equilibrium
mg - kx = 0
x = mg / k
= (60 x 9.8 ) / 800
= 0.735 m
At this moment , let its velocity be equal to V
Applying conservation of energy
kinetic energy of jumper + elastic energy of cord = loss of potential energy of the jumper
1/2 m V² + 1/2 k x² = mg x
.5 x 60 x V² + .5 x 800 x .735 x .735 = 60 x 9.8 x .735
30 V² + 216.09 = 432.18
V = 2.68 m / s
b ) At lowest point , kinetic energy is zero and loss of potential energy will be equal to stored elastic energy.
1/2 k x² = mgx
x = 2 m g / k
= (2 x 60 x 9.8) / 800
= 1.47 m
constant voltage of 100 volts and a resistance of 500 ohms.
<span>I = 100 / 500. Current = 0.2 amps </span>
<span> resistance to 200 ohms. I = 100 / 200. Now the current is 0.5 amps.</span>
As we also know that Voltage is directly proportional to the current
Resistance is the proportionality constant.
Answer:
Rate of magnetic field is 15923.668 T/sec
Explanation:
We have given radius of loop conductor r = 2 mm = 0.002 m
Induced emf = 2 volt
As the magnetic field and plane are perpendicular to each other so angle between magnetic field and area is 0°
Cross sectional area of the conductor is equal to 
Induced emf is given by 
A) voltage available to each light remains constant regardless of the number of lights that are on
I took the test
