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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?
An insulated Thermos contains 123 cm3 of hot coffee at 73 °C. You put a 12.0 g ice cube at its melting point to cool coffee. By how various degrees has your coffee cooled one time the ice has melted and equilibrium is reached? Treat the coffee as tho..
The difference in potential between the accelerating plates of a TV set is about 26000 V. If the distance between these plates is 1.5 cm, find out the magnitude of the uniform electric field in this region.
A copper wire has a square cross section 2.7 on a side. The wire is 3.8 long and carries a current of 4.0 . The density of free electrons is 8.5*10^28 m^-3.
A small boat is moving at a velocity of 3.35 m/s while it is accelerated by a river current perpendicular to the initial direction of motion. If current acceleration is 0.750 m/s^2, what will the new velocity of the boat be after 33.5 s.
The loaded cab of an elevator has a mass of 2.8 x 10^3 kg and moves 214 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab.
In adding, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
What is speed of the car just before it lands safely
find speed at which the ball left the quarterback's hand.
approsimate the terminal speed of a wooden sphere (density 0.890 g/cm3) falling through air, if its radius is 9.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.)
A boy is attempting to swim directly across a river; he is able to swim at a speed of 0.421 m/s relative to the water. The river is 2.48 m wide and the boy ends up at 4.77 m downstream from his starting point.
A person carries a long pole of mass 20 kg and length 3.4 m at the angle of 60 degrees. Find the magnitude of the torque on the pole due to gravity.
Find out the type of mirror and how far the object is
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