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A person 1.7 m tall is standing 2.50m in front of a camera. The camera uses a convex lens whose focal length is .0500 m.
a) find the image distance (the distance between the lens and the film) and determine whether the image is real or virtual.
b) Find the magnification and the height of the image on the film.
In a model AC generator, a 500-turn rectangular coil 8.0 cm by 20 cm rotates at 120 rev/min in a uniform magnetic field of 0.60 T. what is the maximum emf induced in the coil.
Coherent light with wavelength 600 nm passes through two very narrow slits and the interference pattern is observed on a screen 5.00 m from the slits. The first-order bright fringe is at 4.74 mm from the center of the central bright fringe. For what ..
Consider a balloon filled with helium gas at room temperature (T = 289 K) and atmospheric pressure. Calculate the average de Broglie wavelength of the helium atoms
Four charges are placed in a three-dimensional space. The charges have magnitudes 2 nC, -4 nC, 1 nC, and -9 nC. If a Gaussian surface encloses all the charges, what will be the electric flux through that surface?
If 0.040kg of ice at 0 C is added to 0.390kg of water at 30 C in a 0.130-kg aluminum calorimeter cup
A 115-V source of emf is attached to a heating element with is a coil of nichrome wire (r=100*10^-8) of cross section 1.20 mm^2. What must be the length of the wire
In what ways is the transducer in medical ultrasound a 'speaker' & 'microphone?', What is the broadest definition of a 'transducer?'
A 1020kg artillery shell is fired from a battleship. While it is in the barrel of the gun, it experiences an acceleration of 2.1x10^4m/s^2. what net force is exterted on the artillery shell before it leaves the barrel of the gun
A transformer on a utility pole operates at an Vp = 8:5 KV rms on the primary side and supplies electric power to a number of nearby houses at Vs = 120 V rms. What is the turn ratio, Np=Ns, of this step-down transformer
What thickness of board (calculated to 0.1 cm) would it take to stop the bullet, suppose that the acceleration through all boards is the same.
"As a baseball is being caught, its speed goes from 30 to 0 m/s in about 0.005 s. Its mass is 0.145 kg. What is the baseball's acceleration in m/s2 and in g's
Pat builds a track for his model car out of wood. The track is 14.00 cm wide, 3.00 m long, Locate the horizontal coordinate of the center of gravity of this track
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