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The maximum angular magnification of a magnifying glass is 12.0 when a person uses it who has a near point that is 25.0 cm from his eyes. The same person finds that a microscope, using this magnifying glass as the eyepiece, has an angular magnification of -525. The separation between the eyepiece and the objective of the microscope is 23.0 cm. Obtain the focal length of the objective.
An observer moving at a speed of 0.795 c relative to a rod (Fig. P26.14) measures its length to be 2.00 m, What is the proper length of the rod
Two parallel plates are held at potentials of +229V and ?59V, An electron is initially placed halfway between the plates, Find its kinetic energy when it hits the positive plate
Two point charges are separated by 10.0 cm and have charges of +2.00 uC, What is the electric field at a point midway between the two charges
What is the magnitude of the magnetic field that the spectrometer uses? In the operating room, anesthesiologists use mass spectrometers to monitor the respiratory gases of patients undergoing surgery
With a particular grating a doublet of the two wavelengths 731.3 and 732.1 nm is viewed in the third order at 9.3° to the normal and is barely resolved. Find the total width of the rulings in nanometers
A 790-kg object and an 889-kg object are separated by 11.0 m. At what position (from the less massive object) can the 260-kg object be placed so as to experience a net force of 10 N towards the less massive object.
A 103.29 cm-long steel string with a linear density of 2.56 g/m is under 240.31 N tension. What is the wavelength of the sound wave that reaches your ear in a 11.65oC room
a uniform 12.0kg ladder is 4.0m long and is placed against a frictionless wall at 30 degress. find the frictionless force at the floor necessary to maintaain equilibrium
A series circuit consists of an ac source of variable frequency, a 115 ohm resistor, a 1.25 microfarad capacitor, Find the impedance of this circuit when the angular frequency of the ac source is adjusted to the resonance angular frequency
q1. what is your displacement after running 2.1 on strawberry fields 1.6 on penny lane and 4.1 on abbey road?q2. the
An electric heater is used to heat a room of volume 66 m3. Air is brought into the room at 5°C and is completely replaced twice per hour. what minimum wattage must the heater have
A car is driven 175km west and then 55km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
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