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A lens is made of a transparent material having an index ofrefraction of 1.7. One side of the lens is flat, and the otherconvex with a radius of curvature of 28cm.(a) Find the focal length of the lens. (b) If an object is placed 97 cmin front of the lens, where will the image be located?
A horizontal 2-m-diameter gate is located in the bottom of a water tank (5m depth). Determine the force F required to just open the gate
q1. a coin is placed 12.0 rm cm from the axis of a rotating turntable of variable speed. when the speed of the
A 600-turn solenoid is 21cm long and 1.7cm in diameter and carries 67 mA. How much magnetic energy does it contain
A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she decelerates at 1.8 m/s2. At what height does the fall begin
a massless spring of spring constant 50 N/m is suspended vertically. Set the vertical origin to the natural length of the spring. what are the amplitude and frequency of the oscillations
Jimmy and his cart (with a combined mass of 200 kg) are moving along with a velocity v1 = 20 m/s i. What is the velocity of the combined system of two carts plus occupants after the collision
A mass m1 = 17.0 kg and a mass m2 = 10.5 kg are suspended by a pulley that has a radius of 9.8 cm and a mass of 3.1 kg, determine the tension in the right cord
A person is riding a bicycle, and itswheels have an angular velocity of +25.0 rad/s. What is the angular acceleration of each wheel
A 80.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the firefighter's speed just before she collides with the platform
What is the magnitude of the normal force exerted by the car.
A baseball is thrown up from ground level at a speed of 256ft/s: What is the acceleration at the highest point in ft/s2
a particle at time t 0 is at rest at a distance x0 from the origin and is subjected to a force that is inversely
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