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A laser beam of unknown wavelength passes through a diffraction grating having 5460lines/cmafter striking it perpendicularly. Taking measurements, you find that the first pair of bright spots away from the central maximum occurs at ±15.2? with respect to the original direction of the beam.
What is the wavelength of the light? in nm
At what angle will the next pair of bright spots occur?
You need to push a box across the room. which side of the box should be the side down on the floor
a girl is using a rope to pull a box that weighs 300 N across a level surface with constant velocity. what is the normal force of the floor on the box
An electron is moving east in a uniform electric field of 1.53N/C directed to the west. What is the speed of the proton at point B
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A hanging block A ( Ma = 15 kg) is connected by a light cable and a pulley wheel to a second block B ( Mb = 10 kg) situated at the bottom of a frictionless inclined plane with angle %u03B8 = 30o to the horizontal
Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.20 m and a positive point charge q2 at y2 = +0.38 m, Determine the magnitude of q2
Two small beads having positive charges24qandqare fixed at the opposite ends of a horizontal insulating rod, At what position is the third bead in equilibrium
A student decides to move the box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 168 N at an angle of 30.0° above the horizontal. The box has a mass of 21.0 kg, and the coefficient of kinetic f..
You would like to shoot an orange out of a tree with your bow and arrow. The orange is hanging 5.00 m above the ground. how far away can you stand to hit the orange
A 7.05 bullet traveling at 520 m/s embeds itself in a 1.85kg wooden block at rest on a frictionless surface. Find the amplitude of the subsequent simple harmonic motion
Several vectors in the x-y plane are shown in the figure with their tails at the origin of the coordinate system and with a label at their heads
A 1.1 kg birdfeeder hangs from a horizontal tree branch. The birdfeeder is attached to the branch at a point that is 1.0 m from the trunk. where the branch attaches to the trunk
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