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One of the brightest comets of the 20th century was Comet Hyakutake, which passed close to the sun in early 1996. The orbital period of this comet is estimated to be about 30,000 years. Find the semi-major axis of this comet's orbit. Compare it to the average sun-Pluto distance and to the distance to Alpha Centauri, the nearest star to the sun, which is 4.3 light-years distant.
A launch vehicle thrusts at an angle of 37o above the local horizontal. The vehicle's mass is 200,000 kg and its weight is 2 x 10^6 N. If the engines are providing 3 x 10^6 N of force, find the acceleration of the vehicle?
A solenoid 1.30 m long and 2.70 cm in diameter carries a current of 12.0 A. The magnetic field inside the solenoid is 15.0 mT. Find the length of the wire forming the solenoid
a female orb spider has a mass of 0.45 g. she is suspended from a tree branch by a 1.2 m length of 0.0020mm diameter
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
Calculate the X and Y components of a 1.00x102 gram force at an angle of 120 degrees and use mass weight units of grams
A ferry transports tourists among three islands. It sails from the first island to the second island, 5.41 km away, Calculate the distance between the first and third islands
An object is located 5 cm to the left of a concave mirror that has a radius of curvature if 20 cm. Calculate the image distance from the mirror
a horizontal spring-mass system has low friction spring stiffness 185 nm and mass 0.3 kg. the system is released with
Two disks are mounted on frictionless bearings on the same axle and can be brought together so that they couple and rotate as one unit. what is the angular speed after coupling
A toy car of mass 2.0 kg is stationary and a child rolls a truck of mass 3.5kg straight toward it with a speed of 4.0 m/s. What is the velocity of the center of mass of the system
An item is 21 cm from a lens with a focal length of +12 cm (convex lens). How far away must the screen be to produce an image, and what is the magnification of the image? Draw a rough picture of where the image is in relation to the object and the..
a battery produces 41.9v when 7.20a is drawn from it and 48.7v when 1.90a is drawn. what is the internal resistance of
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