A torque acts on a wheel rotating at 19.8 rad/s and increases its angular speed to 23.5 rad/s in 11.2 s. Find the angle through
1 answer:
243 rad is the angle through which the wheel turns during this time.
<h3>What is torque and angular speed?</h3>
Torque is a measure of the force that can cause an object to rotate about an axis.
Angular speed is define as the measuring angle of rotation over a given amount of time.
Mathematically , ω = θ t
From the given question ,
Torque = 19.8 rad/s
ω = 23.5 rad/s
t = 11.2 s
We get the equation,
= 243 rad
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Answer:
work done by tension force on the twirled stone must be ZERO always
Explanation:
As we know that work done by a force on an object is given as
here we know that
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now we know that tension in the string and displacement of the object is always perpendicular to each other when the rock is twirled in circular path.
so we can say for this motion of the stone
so work done by tension force on the twirled stone must be ZERO always
Answer:
Part a)
Part b)
this is a large potential which can not be possible because at this high potential the air will break down and the charge on the sphere will decrease.
Part C)
here we can assume the sphere is placed at vacuum so that there is no break down of air.
Explanation:
Part a)
As we know that the potential near the surface of metal sphere is given by the equation
here we have
Q = 8 C
R = 10.0 cm
now we have
Part b)
this is a large potential which can not be possible because at this high potential the air will break down and the charge on the sphere will decrease.
Part C)
here we can assume the sphere is placed at vacuum so that there is no break down of air.