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Arizona is famous for what variety of fossil? How is coal formed? Explain the difference between a mold and a cast. How do fossils aid in oil exploration? Give three examples of trace fossils.
A 1.40 kilogram ball, moving to the right at a velocity of +1.04 meter per second on a frictionless table, Obtain the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
A compound microscope uses a 73.0mm lens as the objective and a 2.1cm lens as the eyepiece. find the total magnification produced by the microscope
q. a 30 gram mass is hanging from a spring whose unstretched length is 20 cm and whose spring constant is 2.5 nm. in
Find the acceleration with which each block starts to move, given that the coefficient of kinetic friction between each block and the surface is the following values. (Let the coordinate system be positive to the right and negative to the left. Be..
A woman weighs 800 N on earth. When she walks on the moon, she weighs only 133 N. What is the acceleration due to gravity on the moon
At a given instant the current and self-induced emf in an inductor are directed as indicated, find the inductance in henrys
A playground merry-go-round has radius 2.50mand moment of inertia 2800kg?m2 about a vertical axle through its center, What is the average power supplied by the child
An object is 120 cm in front of a concave mirror that has radius or curvature 120 cm. (a) Calculate the image distance. From your result, determine the following properties of ( the image: (b) real or virtual, (c) upright or inverted, (d) magnifie..
David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David.
You measure an electric field of 1.26×106 N/C at a distance of 0.149 m. from a point charge. find the magnitude of the charge
A shift of one fringe in the Michelson-Morley experiment corresponds to a change in the round-trip travel time along one arm of the interferometer by one period of vibration of light, what velocity through the ether would be deduced frame a shift o..
The amount of heat that an engine discards to the cold reservoir is 2 times the amount of work that it does. Evaluate what is the efficiency of the engine
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