The coefficient of friction has no units.
Answer: Option D
<u>Explanation:
</u>
The coefficient of friction, just a measure of the relationship between normal forces when two bodies are in contact. It is a ratio-like quantity, where the numerator and the denominator are of same units. The coefficient of friction is a scalar.
This is used to determine the frictional forces acting on the body, in physics. It is simply, the tangent of the angle of friction, and hence, has no units. Coefficient of friction reduces the object's speed, or supports to change the state of an object. It acts, only when the surface which is in contact with the body, is rough.
The maximum torque that can act on the loop is 7.875 N-m.
Torque:
Torque is a twisting or turning force that tends to cause rotation around an axis, which might be a center of mass or a fixed point. Torque can also be thought of as the ability of something that is rotating, such as a gear or a shaft, to overcome turning resistance.
The formula of torque:
Torque(T) = I B A
B = magnetic field of intensity
I = current =
A = area of the wire
l = length of the wire
l = 2πr
r = l/2π
A = πr²
= π(l/2π)²
= l²/4π
T = l²/4π IB
=( 1/4π) BIl²
= (1/4π) 0.30 × 150 ×× 2.20
= 7.875 N-m
Therefore the torque is 7.875 N-m.
To know more about the Torque refer to the link given below:
brainly.com/question/1691855
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Instantaneous speed is the motion rate of object at a particular time period or moment. If we take an example of a cheetah who is running with speed of 80 miles per hour then it is his instantaneous speed because it is shown as in per hour speed
Since this is definitely a RIGHT triangle (the little square in the corner),
the hypotenuse is 15, 'h' is the side opposite the 38-degree angle, and
sin(38°) = h / 15
Multiply each side by 15: h = 15 sin(38°)
= 15 (0.616)
h = 9.235
Explanation:
A.
Using the wave equation:
v = d/t
Where,
v = velocity
d = distance
= 23.5 km
= 23500 m
t = time
= 2m 30s = 150 s
v = 23500/150
= 156.7 m/s
B.
From the calculated value above, it can be seen that the velocity of the heat blast is >>> than the velocity of sound above sea level.
