A coin with a diameter 3.00 cm rolls up a 30.0 inclined plane. The coin starts out with an initial angular speed of 60.0 rad/s
1 answer:
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A coin with a diameter 3.00 cm rolls up a 30.0° inclined plane. The coin starts out with an initial angular speed of 60.0 rad/s and rolls in a straight line without slipping. If the moment of inertia of the coin is(1/2) MR² , how far will the coin roll up the inclined plane (length along the ramp)? Hint: Conservation of mechanical energy.
Answer:
distance=0.124 m
Explanation:
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Answer:
The magnitude of the torque on the loop due to the magnetic field is .
Explanation:
Given that,
Diameter = 10 cm
Current = 0.20 A
Magnetic field = 0.30 T
Unit vector
We need to calculate the torque on the loop
Using formula of torque
Where, N = number of turns
A = area
I = current
B = magnetic field
Put the value into the formula
Hence, The magnitude of the torque on the loop due to the magnetic field is .
Answer:
Buffy > Aiko > Chandra > Freja > Evita
Explanation:
Beats occur when two waves of nearby frequencies overlap. The number of beats per second is equal to the difference in the frequency.
Let
Frequency of Kira
Frequency of Aiko
The beat frequency of Kira and Aiko is therefore,
Substituting for
and
for
, we get
From the above equation, we see that beats increase
when
Frequency of Chandra
The beat frequency of Kira and Chandra is therefore,
From the above equation, we see that beats decrease
When
Frequency of Evita
The beat frequency of Kira and Evita is therefore,
From the above equation, we see that beats decrease
When
Frequency of Freja
The beat frequency of Kira and Freja is therefore,
From the equation above, we see that beats decrease
When
Frequency of Buffy
The beat frequency of Kira and Buffy becomes,
From the equation above, we see that beats increase
Hence, the rank of members based on initial frequencies from largest to smallest is Buffy > Aiko > Chandra > Freja > Evita