Torques T 5 5.7 kN?m are applied to a hollow aluminum shaft (G 5 27 GPa and d1 5 52 mm). The allowable shear stress is 45 MPa and the allowable normal strain is 8.0 3 1024. The required outside diameter d2 of the shaft is approximately:
(A) 38 mm
(B) 56 mm
(C) 87 mm
(D) 91 mm
(D) 91 mm
You might also like to view...
Kepler relied heavily on the telescopic observations of Galileo in developing his laws of planetary motion
Indicate whether the statement is true or false
An electron, moving south, enters a magnetic field. Because of this field, the electron curves upward. We may conclude that the magnetic field must have a component
A) downward. B) towards the east. C) towards the north. D) upward. E) towards the west.
A magnifying lens of power d (in diopters) gives what magnification when the viewing eye is relaxed assuming a near point of 25 cm?
a. 25d b. 0.25/d c. d/4 d. The correct answer is not given.
How do you measure the mass of the supermassive black hole at the center of the Milky Way?
A.) Look at the amount of light that it emits and apply the inverse square law for brightness. B.) Look at the orbits of nearby stars and apply Kepler's Third Law. C.) See how fast it sucks stars in from the outer parts of the galaxy. D.) Look at a spectrum of the black hole and measure its spectral type. E.) Find its temperature, and assuming it is a black body, calculate its mass.