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A 0.31 kg point mass moving on africtionless horizontal surface is attached to a rubber band whose other end is fixed at point P. The rubber band exertsaforce F = bx toward P,where x is the length of the rubber bandand b is an unknown constant. The mass movesalong the dotted line. When it passes pointA, its velocityis 3.6 m/s directed as shown.The distance AP is 0.6 mand BP is 1.0 m.
Imagine you are holding an object in your hand with your forearm horizontal and your upper arm vertical so your elbow creates a 90° angle. what force is exerted by the biceps muscle
the filament in an incandescent light bulb is made from tungsten resistivity 5.6 x 10-8 omiddotm. the light bulb is
With what initial speed should a positive charge, +q, be given such that if starting infinitely far away from a fixed positively charged nuclues, +Q, of radius R, the positive charge is just able to get to the surface of the positive charge, done wit..
the radius of the earth is 6380 km and turns once on its axis in 24 hours. what is the radial acceleration if the
You have a 300nF capacitor and wish to combine it with one other to make a combined capacitance of 2.50uF. How large a capacitor do you need
A satellite circles a spherical planet of unknown mass in a circular orbit of radius 1.9 x 10^7 m. What would be the magnitude of the gravitational force exerted on the satellite by the planet if the radius of the orbit were increased to 3.6 x 10^7..
if turns ratio of primary to secondary coil of transformer is 1:3 and voltage on primary coil is 10 volts. what is voltage of seconday coil
A mirror of focal length 24.2 cm creates an image with magnification %u22120.350. What is the image distance
An electric motor rotating a workshop grinding wheel at 1.06 102 rev/min is switched off. How long does it take the grinding wheel to stop
a particle is projected with a velocity of 900ft/sec at anelevation of 60 degrees to the horizontal from the foot of a planeof inclination 30 degrees, estimate the range on the inclined plane
A 1300-{rm kg} car rolling on a horizontal surface has speed v = 50 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.7 m. Illustrate what is the spring stiffness constant of the spring?
A particle is traveling in a straight line at a constant speedof 25.0 m/s. Suddenly, a constant force of 15.0 N acts on it, bringing it to a stop in a distance of 62.5 m. (a) What is the direction of the force? (b) Determine the time it takes for ..
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