The magnitude difference between Hubble Space Telescope apparent visual magnitude limit and the Sun's apparent visual magnitude is about 55
a. True
b. False
Indicate whether the statement is true or false
True
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A copper bar (d 5 10 mm, E 5 110 GPa) is loaded by tensile load P 5 11.5 kN. The maximum shear stress in the bar is approximately:
(A) 73 MPa
(B) 87 MPa
(C) 145 MPa
(D) 150 MPa
A golf club hits a golf ball with a force of 2400 N, sending the ball into the air. The force exerted on the club by the ball must be less than 2400 N or else the ball would not have moved forward
A) True B) False C) The answer depends on whether the golfer followed through with the swing.
A level pipe contains a nonviscous, incompressible fluid with a density 1200 kg/m3 that is flowing irrotationally. At one position within the pipe, the pressure is 300 kPa and the speed of the flow is 20.0 m/s
At another position, the pressure is 200 kPa. What is the speed of the flow at this second position? A) 567 m/s B) 16.2 m/s C) 32.9 m/s D) 23.8 m/s E) 186 m/s
Determine the total resistance of a 10-ohm resistor and a 30-ohm resistor connected in parallel.