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An object is placed 2.0 cm from a converging lens with focal length 1.5 cm. A concave mirror with focal length 1.0 cm is located 7.5 cm to the right of the lens as shown in the figure. Note: The figure is not drawn to scale. Determine the location of the final image. Draw a diagram
A merry-go-round starts from rest and accelerates uniformly over 23.5 s to the final angular velocity of 6.55 rev/min.
Assuming that all the heat generated by the resistor is absorbed by the solid substance, and that it takes 4 minutes to raise the temperature from 20to 80 degrees C, compute the specific heat for the substance.
State clearly the difference (a) between electric potential and electric field, (b) between electric potential and electric potential energy.
An electron in the hydrogen atom makes a drop from n = 3 to m = 2. What wavelength of photon is emitted
Two speakers, one directly behind the other, are each generating a 374-Hz sound wave. What is the smallest parting distance between the speakers that will generate destructive interference at a listener standing in front of them? Take the speed of so..
How to find out the elapsed time
What average thermal power is produced as rock stops?
A ranger in a national park is driving at 44 km/h when a deer jumps onto the road 70 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to produce an acceleration of -3.00 m/s2.
An asteroid is discovered heading straight toward Earth at 14 km/s . An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10minutes , after which the asteroid is moving at 28degrees to its original pa..
Radioactive isotopes often occur together in mixtures. assume a 480 sample contains , with a half-life of 12 days, and , with a half-life of 4.5 days.
A rotating wheel requires 3.03-s to rotate through 37.0 revolutions. Its angular speed at the end of the 3.03-s interval is 99.0 rad/s
How high a tree would a 79.0 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount.
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