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A force F1→ of magnitude 5.20 units acts on an object at the origin in a direction θ= 39.0 degree above the positive x-axis. (See the figure below.) A second force F2→ of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find graphically the magnitude and direction of the resultant force F1→ + F2→. magnitude units direction degree counterclockwise from the +x axis.
A uniform marble rolls down a symmetric bowl, starting from rest at the top of the left side. The top of each side is a distance above the bottom of the bowl. The left half of the bowl is rough enough to cause the marble to roll without slipping, ..
An electron in chromium moves from the n = 2 state to the n = 1 state without emitting a photon. Use the Bohr theory to estimate the kinetic energy of the Auger electron
question 1 a 0.49 copper rod with a mass of 0.18 carries a current of 13 in the positive x direction. let upward be the
Diffraction grating produces its third-order bright band at an angle of 79.4 degrees for light of wavelength 731nm. Find the angular location of the first-order bright band
Estimate the area of the plates needed to achieve a capacitance of 1 F, given the same air gap, What is the electric field between the plates
A tungsten target is struck by electrons that have been accelerated from rest through a 29.9-kV potential difference. Find the shortest wavelength of the radiation emitted
A laser pulse has a duration of 4.00× 10?11 s and a frequency of 6.40× 1014 Hz. How many cycles of wave are in the pulse
A whale swims due east for a distance of 1.5 km, turns around and goes due west for 5.7 km, and finally turns around again and heads 4.5 km due east. What is the total distance traveled by the whale
If you are watching a football game from the end of a large stadium, what size will be the image of the football (L=0.3m) on your retina when the football is at the end of the field, 150m away from your seat? (CSG)
What average force did the block exert on the bullet if it took 0.07 s to stop the bullet?
A 0.550 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
A uniform narrow tube 1.79 long is open at both ends. It resonates at two successive harmonics of frequencies 285 and 342. What is the speed of sound in the gas in the tube
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