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A body rotating at an angular velocity of 5 radians/sec, with a radius of 5 metres has a speed of
- 5pi metres per second.
- 5 metres per second.
- 25 metres per second.
please i need eplanation with formular
Ratiometer pointer movement is achieved by
- one coil providing a torque against a permanent magnet
- two opposing coils providing a torque in a varying magnetic field
- two opposing coils providing a torque in a permanent magnetic field
Do this means ratiometer in permanent magnetic field as in DC?
If AC ratiometer will be in a varying magnetic field?
If angle of attack is increased beyond th e critical angle of attack, the lift coefficient ... and the stagnation point moves...
- decreases; rearward
- increases; rearward
- decreases; forward
Is this a typo? Shouldn't this be seperation point? Stagnation point is infront of the leading edge, it can only move up and down not forward and back.
A force perpendicular to a beam produces what type of stress?
- axial.
- shear.
- radial
i think the answer is tensile stress,becouse its given by force perpendicular to the cross sectional area/cross section area....kindly someone explain to me why SHEAR
1 degree rise on the centigrade scale will cause a
- 1.8 degree rise in Fahrenheit.
- 33 degree rise in Fahrenheit.
- 2.5 degree rise in Fahrenheit.
kindly someone explain for me