A toaster uses 400 W of power. How much does it use in 5 seconds?
1 answer:
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Answer:
The angular displacement of each wheel is 269.92 rad
Explanation:
Given:
Angular acceleration
Time to pass cyclist s
Angular velocity
According to the equation of kinematics,
For finding angular displacement,
Where angular displacement,
rad
Therefore, the angular displacement of each wheel is 269.92 rad
The magnetic force acting on the proton is
where
q is the proton charge
v is its speed
B is the intensity of the magnetic field
is the angle between the direction of v and B; since the proton is moving perpendicular to the magnetic field, 
and 
, so the force becomes
this force provides the centripetal force that keeps the proton in circular motion:
where the term on the left is the centripetal force, with
m being the mass of the proton
r the radius of its orbit
Re-arranging the previous equation, we can find the radius of the proton's orbit:
And now we can calculate the centripetal acceleration of the proton, which is given by
where
q is the proton charge
v is its speed
B is the intensity of the magnetic field
this force provides the centripetal force that keeps the proton in circular motion:
where the term on the left is the centripetal force, with
m being the mass of the proton
r the radius of its orbit
Re-arranging the previous equation, we can find the radius of the proton's orbit:
And now we can calculate the centripetal acceleration of the proton, which is given by