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An engine puts out 5 kW of power at an efficiency of 35.0%. If 8850 J of energy is expelled each cycle find
(a) the energy absorbed in each cycle and
(b) the time for each cycle.
What is the difference between a vector's x scalar component, How do equilibrant and resultant vectors relate to each other
a 39 ohm resistor is connectes to a battery, a voltmeter reads 9.8 V. when the resistor is repaced with a 9.1 ohm resister. the voltmeter reading drops to 8.0 V.
Charges of 3.00 nC, -2.00 nC, -7.00 nC, and 1.00 nC are contained inside a rectangular box with length 1.00 m, What is the electric flux through the surface of the box
The electron and positron have the same velocity. What is the kinetic energy of the electron
Three astronauts, propelled by jet backpacks, push and guide a 115 kg asteroid toward the processing dock, exerting the forces, with F1 = 34 N, F2 = 57 N, F3 = 41 N, θ1 = 30°, and θ3 = 60°
Calculate the relativistic kinetic energy of a 920 kg car moving at 33 m/s if the speed of light were only 45 m/s
What is the mass of the block on the left. Find this angle of the thread.
A potter's wheel having a radius 0.55m and a moment of inertia 12kg•m2 is rotating freely at 51 rev/min. The potter can stop the wheel in 7 s by pressing a wet rag against the rim and exerting a radially inward force of 67N. Find out the effectual co..
questiona cockroach of mass m lies on the rim of a uniform disk of mass 5 m that can rotate freely about its center
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. If the person applies of a force of 15 N on each handle, how much force is applied to the branch
A person with mass m1 = 60 kg stands at the left end of a uniform beam with mass m2 = 91 kg and a length L = 3.2 m, What is the location of the center of mass of the system
A small steel ball bearing with a mass of 17g is on a short compressed spring. When aimed vertically and suddenly free, spring sends the bearing to a height of 1.33 m. compute the horizontal distance ball would travel if the same spring were aimed..
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