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For a rocket propulsion velocity of exhaust gases relative to rocket is 2km/s.If mass of rocket system is 1000kg, then what is the rate of fuel consumption for a rocket to rise up with acceleration 4.9m/s^2?
A box of mass 15 kg is dragged by a 50 N horizontal force a distance of 10 m over a rough surface with the coefficient of friction = 0.14 the work done by friction force.
The highest theoretical efficiency of a gasoline engine, based on the Carnot cycle, is 0.300 or 30.0%. what is the temperature in the cylinder immediately after combustion
q1. a helicopter is ascending vertically with a speed of 5.57. at a height of 124 above the earth package is dropped
A lens in Lick Observatory's 36-inch refracting telescope has a thickness of 1.96 inches at its center and an index of refraction n=1.52. What is the light speed in the lens
A .025 nm photon is incident on an electron. It is scatteredat an angle of 140o. What is the Kinetic engergy of the recoiling electron
A 6.2\({\rm ft}\) tall shopper in a department store is 18\({\rm ft}\) from a convex security mirror, What is the mirror's radius of curvature
A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field. What is the ratio of the radii of their circular paths
A 9.6 kg object is pulled along a horizontal surface. If the coefficient of friction is 0.1.1. What is the force of friction
A 1.3 kilogram ball and a 2.4 kilogram ball are connected by a 1.0 meter long rigid, mass less rod. The rod is rotating about its center of mass at 20 rpm. Find what torque will bring the balls to a halt in 4.2 second
Explain the rule of subtracting two vectors in graphical and component representation, ow the position of an object changes in time in case of linear motion
The diffraction pattern of a uniformly illuminated double-slit aperture consists of bright fringes spaced 5.00 cm apart on a screen 2.00 m from the aperture. what is the slit width and slit seperation
the wire in a heating element of an electric stove burner has a 0.75-m effective length and a 2.010-6 m cross-section
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