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A double-slit interference pattern is created by two narrow slitsspaced 0.30 mm apart. The distance between the first and the fifth minimum on ascreen 65 cm behind theslits is 6 mm. What is the wavelength of the light used in this experiment?
In a football game, a receiver is standing still, having just caught a pass. Before he can move, a tackler, running at a velocity of +4.8 m/s, grabs him. find the mass of the receiver
An ionized deuteron (a particle with a charge) passes through a velocity selector whose perpendicular magnetic and electric fields have magnitudes of 43 mT and 7.8 kV/m
A rotating door is made from four rectangular glass panes, as shown in the drawing. find the magnitude of the door's angular acceleration
A beam of 6 MeV electrons passes through a 400 micro-meter thick silicon detector. Estimate the energy lost by the electrons when crossing 200 micro-meters, 300 micro-meters and the full thickness of the detector.
two parallel plates each having area a 2157.0cm2 are connected to the terminals of a battery of voltage vb 6.0 v. the
In a hydraulic system, the larger piston to be used to lift a 1670kg car has a diameter of 24.2cm, If instead compressed air at 115 psi of pressure is used, what is the largest mass car (in kg) that the system can lift
The average distance of the planet Mercury from the sun is 0.39 times the average distance of the earth from the sun
an electromagnetic wave strikes a 2.40-cm2 section of wall perpendicularly. the rms value of the waves magnetic field
A soccer ball of mass 400g is rolling at a speed of 8m/s along a flat horizontal surface. Find the rotational kinetic energy of the ball
A lamp is placed 10 cm in front of a concave spherical mirror that forms an image of the filament on a screen placed 3.0 m from the mirror. What is the radius of curvature of the mirror
you need to determine the density of an unknown liquid. to this end you perform an experiment with a block and notice that the block floats in this unknown liquid with 4.6 cm of its side submerged. determine the density of the unknown liquid
You've been given the task of designing a "water couch"-that one could lie on, floating on a lake, for instance-in the form of a flat rectangular slab made of Styrofoam with a density of 85 kg/m 3. Explain why he will not be able to breathe that wa..
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