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A concave mirror has a focal length of 12 centimeter. The mirror forms an image located 31 centimeter in front of the mirror. Evaluate what is the magnification of the mirror?
Standing waves on a string are generated by oscillations having amplitude 0.005 m, angular frequency 942 rad/s, and wave number 0.750p rad/m. What is the equation of the standing wave?
A 150-? resistor is connected in series with a 0.250-H inductor. The voltage across the resistor is vR = (5.70 V)cos[(445 rad/s)t]. Determine the inductive reactance of the inductor
You construct two wire-frame cubes, one using (infinitely thin) copper wire, the other using (infinitely thin) aluminium wire. Find the difference in volume between the cubes
When a 4.0 µF capacitor is connected to a generator whose rms output is 34 V, the current in the circuit is observed to be 0.40 A
an astronaut in his space suit and with a propulsion empty of gas propellant stapped to his back has a mass of 146kg.
A 52% efficient device uses chemical energy to generate 570J J of electric energy. How much chemical energy is used
A transverse sinusoidal wave on a string has a period T = 45.0 ms and travels in the negative x direction with a speed of 30.0 m/s, What is the maximum transverse speed of the string
in proton-beam therapy a high-energy beam of protons is fired at a tumor. the protons come to rest in the tumor
A microscope has an objective lens of focal length 6.55 mm. The objective forms an image 16.2 cm from the lens. What is the distance between the lenses
A particle (at rest) of mass 900 MeV/c^2 decays into three particles of equal rest mass of 100 MeV/c^2, find the energies and momenta (including directions) of the three particles
A coil of wire, initially carrying no current, has a current of 10 A established in .4 seconds. Determine the self-inductance of the coil
A bicyclist is riding a bicycle on a flat road. (Figure 2) The combined mass of the bicyclist and bicycle is = 110 , the radius of each wheel is = 32.5 , and the coefficient of rolling resistance between the tires and the road is = 0.170 . The ped..
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