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A "sun yacht" is a spacecraft with a large sail that is pushedby sunlight. Although such a push is tiny in everydaycircumstances, it can be large enough to sent the spacecraftoutward from the Sun on a cost-free but slow trip. Suppose that thespacecraft has a mass of 900 kg and receives a push of 20 N.
(a)What is the magnitude of the resulting acceleration? If the craftstarts from rest,
(b) how far will it travel in 1 day and
(c) how fast will it then be moving?
a high speed train is traveling at a speed of 44.7ms when the engineer sounds the 415hz warning horn. the speed of
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Dark matter is one of the great mysteries of astronomy and physics, Dark matter is matter that does not radiate electromagnetic energy and so cannot be seen. If astronomers cannot see dark matter how do they know is there?
The three displacement vectors in the drawing have magnitudes of A = 5.47 m, B = 5.43 m, and C = 3.91 m. Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional an..
A bullet with a mas of 10 g and an initial velocity of 800m/s penetrates 5 cm into a fixed block of wood before stopping. The average force on the buller by the wood is? A block of mass 4.25 kg hanging from a light string is struck by a projectile of..
A fire helicopter carries a 520-kg bucket of water at the end of a 20.0-m long cable. Flying back from a fire at a constant speed of 40.0 m/s, the cable makes an angle of 36.0° with respect to the vertical. Determine the force exerted by air resistan..
An object weighs 100 N in air. It weighs 75 N in waterand 85 N in oil. What is the density of the objet
a 1000-turn coil of wire that is 2.3cm in diameter is in a magnetic field that drops from 0.13t to 0t in 12ms. the axis
a cylindrical tank having a radius 5 m and height h 5 m is filled with water with the top end of the tank exposed
An electron acquires 5.95×10?16J of kinetic energy when it is accelerated by an electric field from plate A to plate B
question1the diameter of the large piston of a hydraulic press is 20 cm. and the area of the small piston is 0.50 cm2.
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