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A converging lens and a diverging lens, separated by a distance of 30.0 cm, are used in combination. The converging lens has a focal length of 15.0 cm. The diverging lens is of unknown focal length. An object is placed 20.0 cm in front of the converging lens; the final image is virtual and is formed 12.0 cm before the diverging lens. What is the focal length of the diverging lens?
A football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick.
A sphere is charged with electrons to ?1 × 10^-5 C. How many electrons make up this charge
Two red blood cells each have a mass of 9.05 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. What is the maximum accleration of the cells as they move toward each other and just touch
A jet airplane is in level flight. The mass of the airplane is m = 8830 kg. calculate At what angle is the airplane banked
A 9.60 kg object oscillates at the end of a vertical spring that has a spring constant of 1.65*10^4 N/m. By what percentage does the amplitude of the oscillation decrease
question1a loudspeaker of mass 22.0 kg is suspended a distance of h 2.20 m below ceiling by two cables that make equal
Calculae the flow rate ( in grams per second) of blood in the aorta if the flow speed is 42 cm/s.
q1. a 1720 kg car is travelling with a speed of 15.0 ms. what is the magnitude of the horizontal net force that is
What is velocity of wind that is moving the plane
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10?2cm , mounted coaxially within a cylindrical anode with a radius of 0.5580cm, Find its speed vfinal when it strikes the anode
A 60 kg car moving towards the right at 5 m/s collides head on with an 50 kg car moving towards the left at 6 m/s, find the velocity of the combined bodies
A 1.81 kg block and a 3.62 kg block are initially at rest on a frictionless, horizontal surface, How much does the kinetic energy of the system increase
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