It's angle of reflection must be 41 degrees
we know, by the first law of reflection that angle of incidence is always equal to angle of reflection..........
<span>Torque = force * distance from axis of rotation. Multiply.
If it's not perpendicular, you multiply that with the sine of the angle between the force and the perpendicular direction.
T= 0.470*57*Sin 90 = 26.79 N</span>
If the metal plate that has a circular hole with radius R. And if we raise the temperature of this plate the radius of the hole will increase.