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Object O stands on the central axis of a concave spherical mirror, at a distance of 36 cm. The distance between the focal point and the mirror is 47 cm.
What is the magnification m?
Spark plugs should be tightened to a specified torque of 13.64Nm. What force must you exert on the wrench
One rod is made from quartz and another from lead. The rods are heated and experience the same change in temperature. calculate the initial length of the quartz rod
Determine the maximum and minimum of the absolute value of the magnetic flux through a large triangular wire loop that has three equal sides of 1.85 m
A cue ball (mass = 0.145 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick, which applies an impulse of +1.15 N · s to the ball. Find the velocity of the second ball just after it is struck
Find the absolute pressure at the bottom of the pool. Two persons with combined mass 165 kg enter the pool and float quietly there. No water overflows. Find the pressure increase at the bottom of the pool after they enter the pool and float.
In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward.
Support a meter stick at one end using a string and a spring scale place a 500 g load at the end of the meter stick measure the angle between the string and the meter stick (28o). Find what the scale should read
In preparation for a demonstration on conservation of energy, a professor attaches a 7.2-kg bowling ball to a 2.9-m-long rope. Find the force the professor is exerting on the ball
Determine the greatest vertical displacement of the pendulum (height). The mass lost by the rocket during these 30.0 is negligible. What impulse does an engine impart to the rocket?
The power brick for the author's laptop computer has a power rating of 60 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.
An optometrist prescribes contact lenses that have a focal length of 56.0 cm. Where is the unaided near point of the person located
A Beryllium nucleus consists of 4 protons and 5 neutrons. What is the potential energy of the nucleus due to electrical forces
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