The final velocity is 49.7 m/s downward
Explanation:
The motion of the object is a free fall motion (affected only by the force of gravity), so the object accelerates downward with a constant acceleration of (acceleration of gravity). Therefore, we can use the following suvat equation:
where
v is the final velocity
u is the initial velocity
a is the acceleration
s is the distance covered
Taking downward as positive direction, we have
u = 11.0 m/s
(height of the building)
Solving for v, we find the final velocity as the object hits the ground:
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Answer:
1 W = 1 J / sec Definition of watt is 1 joule / sec
So if a bulb uses 75 J / sec it must use
75 J/s * 60 sec / min = 4500 J/min energy used by bulb
If bulb is 15% efficient then the light delivered is
P = 4500 J / min * .15 = 675 J / min
Good Morning!
It refracts.
The change in the speed of light is called Refraction. This process occurs when light comes in contact with objects of different compositions and structures. Polarization occurs when light only propagates in a particular plane, as opposed to propagating in all.
Answer:
0.00000609180381907 T
Explanation:
= Vacuum permeability =
I = 3.95 A
r = 6.05 cm
Cylinder area
Area within r = 6.05 cm
Current in the enclosure is given by
Net enclosed current
Magnetic field is given by
The magnetic field strength is 0.00000609180381907 T