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(a) How much heat does an engine with an efficiency of 26.0% absorb in order to deliver 2.00 kJ of work?
kJ
(b) How much heat is exhausted by the engine?
A laser pulse has an energy of 16 J and a beam radius of 2 mm. The pulse duration is 11 ns and the energy density is constant within the pulse. What is the spatial length of the pulse
The drill pipe has an outer diameter of 75 mm, a wall thickness of 6 mm, and a weight of 0.8 kN/m. If it is subjected to a torque and axial load as shown, determine the principal stresses and maximum in-plane shear stress
The magnitudes of the four displacement vectors shown in the drawing are A = 20.0 m, B = 11.0 m, C = 12.0 m, and D = 21.0 m.
In a Young's double-slit experiment, the wavelength of the light used is 535 nm (in vacuum), Determine the angle in degrees that locates the second dark fringe
The flywheel of an engine has a moment of inertia 2.40- {rm kg} cdot {rm m}^{2} about its rotation axis. What is its final kinetic energy.
Two people stand 3 m in front of large plane mirror and space 5m a part in dark room at what angle of incidence should one of them shine a flashlight on the mirror so that reflected beam directly strickes the other person.
How large a force F2 must the second crewman pull so that the net force of the two crewmen is in the forward direction.
The impact on light fixture swing
A staging that weighs 440 N supports two painters, one 110 N and the other 460 N. The reading in the left scale is Ft = 800 N. What is the reading Fr, in the right hand scale.
an astronaut weighs 1000N on the surface of the earth(radius = 6.38*10^6m) what is the weight of the astronaut at the elevation of 620 km above the earth's surface
A mass m orbits around a planet of mass M in a parabolic orbit of the form y = x^2/(4L), which has focal length L. Find the angular momentum in 3 different ways: a) Find the speed at closet approach.
Coherent light with wavelength 599 passes through two very narrow slits, and the interference pattern is observed on the screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central b..
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