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A disoriented physics professor drives a distance 3.25km north, then a distance 3.65km west, and then a distance 1.45km south.
1- Find the magnitude of the resultant displacement, using the method of components.
2- Find the direction of the resultant displacement, using the method of components.
Light is emitted by a sodium sample that is moving toward Earth with speed v. The wavelength of the light is 589 nm in the rest frame of sample. The wavelength measured in the frame of Earth is 537 nm. Find v.
An AC generator supplies an rms voltage of 240 V at 60.0 Hz. It is connected in series with a 0.450 H inductor, a 3.90 ?F capacitor and a 316 ? resistor. What is the peak voltage across the inductor
What is acceleration due to gravity
Two Polaroids are aligned so that the light passing through them is a maximum. At what angle should one of them be placed so that the intensity is subsequently reduced by half?
What is the magnitude of the acceleration of an electron at a point where the electric field has magnitude 6656 N/C and is directed due east?
A tennis racket has nylon strings. If one of the strings with a diameter of 1 mm is under the tension of 15 N, how much is it lengthened from its original lenght of 40 cm.
What is the gravitational potential energy of an interstellar cloud, with a density of 1000 H2 molecules/cm3, and radius of 10 pc
Suppose two identical spheres are insulated: sphere A carries +3.54Q and sphere B carries -20.2Q, What is the charge on sphere A now
You drape a string over a pulley and hang a mass of 35kg from one end. You tie the other end to a point a distance L from the pulley so that the string is horizontal between this point and the pulley.
Green light (λ = 546 nm) strikes a single slit at normal incidence. What width slit will generate a central maximum that is 3.00 cm wide on a screen 1.76 m from the slit.
Two motorcycles are traveling in opposite directions at the same speed when one of the cyclists blasts his horn, what is the speed of the motorcycles
An iron wire has a cross-sectional area of 1.14 10-5 m2. Carry out steps (a) through (e) to compute the drift speed of the conduction electrons in the wire, If the wire carries a current of 9.0 A, calculate the drift speed of conduction electrons
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