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A rocket is launched from the surface of the earth with speed 2.00x104 m/s. The radius of the earth is RE = 6.37x106 m. The earth's mass is M = 5.98x1024 kg. G = 6.67x10-11 N·m2 /kg2
(a) Prove that the rocket does escape the earth's gravitational field.
(b) What is the speed of the rocket at an infinite distance from the earth?
A worker pushing a 35.0-kg wooden crate at a constant speed for 11.5 m along a wood floor does 320 J of work applying a constant horizontal force of magnitude F0 on the crate. (a) Determine the value of F0. (b) If the worker now applies a force great..
A 9.22 kg ball, hanging from the ceiling by the light wire 145.00 cm long, is struck in an elastic collision by a 1.20 kg ball moving horizontally at 6.46 m/s just before the collision.
A concave mirror has a focal length of 25.8 cm. The distance between an object and its image is 51.4 cm. Find (a) the object and (b) image distances, assuming that the object lies beyond the center of curvature and (c) the object and (d) image distan..
An electron of mass 9.11E-31 kg has an initial speed of 3E5 m/sec. It travels in a straight line and its speed increases to 7E5 m/sec in a distance of 5.0 cm. What is the force on the electron
45 J of work are done per cycle on a refrigerator with a coefficient of performance of 5.0, How much heat is extracted from the cold reservoir
An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. how much kinetic energy did each piece acquire
Besides the traditional colorimetric acid/base indicators, there is another class that doesn't use color, the olfactory acid-base indicators! These compounds smell or don't smell based on their pH and a lot of them are plant-derived compounds
Two point charges are placed along a horizontal axis with the following values and positions: +2 µC at x = 0 cm and - 21 µC at x = 21 cm. At what point (the coordinate) along the x axis is the electric field zero? Expess the answer (in cm) with one d..
Consider a beam as shown in the figure that is 2 m long and supported by a rope. It is pressed against the wall. what is the tension in the rope
A 50.0 ohm resistor, 30.0-mH inductorr, and 110.0-uF capacitor are connected in series with a alternative voltage source. Find the rms voltage drop across the inductor
What is the magnitude of the induced electric field 0.2070cm from the axis of the solenoid? Give your reply in Volts/meter in scientific notation to three significant digits.
Take the initial direction of motion to be the positive direction. (Indicate the direction of the acceleration by the sign of your reply.)
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