Physics, 21.10.2020 17:01 reneebrown017
g A hydraulic press has a safety feature which consists of a hydraulic cylinder with a piston at one end and a safety valve at the other. The cylinder has a radius of 0.0200 m and the safety valve is simply a 0.00750-m radius circular opening at one end, sealed with a disk. The disk is held in place by a spring with a spring constant of 950 N/m that has been compressed 0.0085 m from its natural length. Determine the magnitude of the minimum force that must be exerted on the piston in order to open the safety valve.
Answers: 1
Physics, 20.06.2019 18:04
Based on the graph, how would you describe the net forces acting on the moving object? a) net force equals zero. b) net force is greater to the right. c) there is no way to determine net force. d) net force is positive and to the right.
Answers: 3
Physics, 22.06.2019 15:50
The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.
Answers: 2
Physics, 22.06.2019 20:30
Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3
Answers: 1
g A hydraulic press has a safety feature which consists of a hydraulic cylinder with a piston at one...
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