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Q. Two 24 cm focal-length converging lenses are placed 16.50 cm apart. An object is placed 39.0 cm in front of one. Where would the final image formed by the second lens be located?
Q. A coin with a diameter of 3 cm rolls up a 30.00° inclined plane. The coin starts with an initial angular speed of 60 rad/s and rolls in the straight line without slipping. How far does it roll up the inclined plane?
How fast will the electron be moving. What was his average speed (in m/s) for the race.
The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Suppose that only static friction supplies the centripetal force, & find the radius r of the tyre.
Pretend a person can walk only at a certain pace no faster, no slower. If you time her uninterrupted walk across a room of known length, you can compute her walking speed.
A bicycle and rider have a combined mass of 100 kg. How many calries of heat are generated in brakes when the bicycle comes to a stop from a speed of 36 km/h.
A jetliner can fly 5.32 hours on a full load of fuel. Without any wind it flies at the speed of 220 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip.
A certain freely falling object requires 1.6s to travel the last 38.00m before it hits the ground. From what height above the ground did it fall.
How long would it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 324.
A 710 kg car stopped at an intersection is rear-ended by a 1800 kgtruck moving with a speed of 16 m/s. If the car was in neutral andits brakes were off, so that the collision is estimated elasticfind the final speed of the truck. Find the final sp..
What is the pressure inside the thermos
A bullet of mass .004 kg is fired horizontally into a wooden block of mass 1.3 kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.2. The bullet remains embedded in the block, which is observed to..
A long, narrow rectangular loop of wire is moving toward the bottom of page with a speed of 0.025 m/s. The loop is leaving a region in which a 2.1 T magnetic field exists; magnetic field outside this region is zero. All through the time of 1.0 s, wha..
A cord of length 1.0m is fixed at both ends. Its mass per unit length is 1.2g/m and the tension is 11N. What is the frequency of fundamental oscillation
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