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A tennis ball, starting from rest, rolls down the hill in the drawing. At the end of the hill the ball becomes airborne, leaving at an angle of 35o with respect to the ground. Treat the ball as a thin-walled spherical shell, and determine the range x.
Two long parallel straight wires are 0.300 m apart and each carries a current of 2.70 A in the same direction. Compute the magnitude of the resulting force per unit length experienced with these wires.
A space traveler weighs 750 N on earth. Illustrate what will the traveler weigh on another planet whose radius is three times that of the earth and whose mass is twice that of the earth.
A 4.0- m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, What is the tension in the wire if the iron bar weighs 300 N and the wire is 5.0 m long
Which coordinate in the equatorial coordinate system is like longitude in the geographic coordinate system? Which coordinate in the equatorial coordinate system is like latitude in the geographic coordinate system?
a centrifuge in a medical laboratory rotates at an angular speed of 3550 revmin. when switched off it rotates through
To get off a frozen, frictionless lake, a 70.0 kg person takes off a 0.150 kg shoe and throws it horizontally, directly away from the shore by a speed of 2.00 m/s.
An alpha particle (He2+) with a velocity of 2.6E+6 meter per second crosses a uniform magnetic field at an angle of 37o to the field lines and experiences a magnetic force of 1.4E-3 Newton. Evaluate the strength of the magnetic field
two blocks each of mass m are connected by an extensionless uniform string of length l. one block is placed on a smooth
A block that has a mass M = 4.25 kg is hanging at rest on a light string. A projectile with a mass m = 250 g moving horizontally strikes M and sticks to it. The block and its projectile swing up and the center of mass rises a distance h = 12.0 cm. Th..
two positive point charges. each of which has a charge of 3.5x10-9c are located at y0.80m and y - 0.80m. find the
A steam locomotive uses the back-and-forth motion of a drive rod to turn its 1.55 m diameter wheel. Each compete oscillation of the rod corresponds to one wheel revolution.What's the rod's oscillation frequency when the train is moving at 30 m/s ?
An object is placed at a distance of 40 cm from a thin lens. If a virtual image forms at a distance of 50 cm from the lens, on the same side as the object, what is the focal length of the lens?
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