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Find the average kinetic energy (in J) of oxygen molecules at a temperature of 321 K.
What is the rms speed (in m/s) of oxygen molecules at 19 oC? Since oxygen is a diatomic molecule, the mass of the oxygen molecule (O2) is 5.313 x 10-26 kg.
If one wished to reduce the speed of an oxygen molecule to 63 % of the value that was obtained in the problem above, what temperature (in oC just write as "C") would be required?
An 8-g bullet is fired into a 170 g block that is initially at rest at the edge of a table of 1m height. The bullet remains in the block, and after the impact the block lands d = 2.10 m from the bottom of the table. Determine out the initial speed..
Two strings equal in length and made of the same material are subjected to tensions
A uniform beam of mass M and length L is pinned to the wall and supported in equilibrium by a thin cable attached a distance d from the free end of the beam. Calculate the force exerted by the pin on the beam in vector form
A hypodermic syringe contains a medicine with the density of water, Determine the speed of the medicine as it leaves the needle's tip
a professional diver performs a dive from a platform 10 m above the water surface. estimate the order of magnitude of
If you stand on a bathroom scale, the spring inside the scale compresses 0.80mm , and it tells you your weight is 680N. what does the scale read at its peak
Explain holzers method - problems belongs to holzer's method in physics.
what is meant by 'net charge a. the total amount of positive charge of an object b. the total amount of negative charge on an object c. the total amount of neutral charge on an object d. A minus B
A cylindrical fishing reel has a moment of inertia of I =7.3 10-4 kg·m2 and a radius of4.0 cm. What is the force of the fish on the line
A uniform electric field of magnitude 350 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.10 cm. What is the work done by the field on the electron
Two electrons in an atom are separated by 1.5 × 10^?10 m, the typical size of an atom, What is the force between them
A 15 cm focal length converging lens is used to magnify small newspaper print 2 mm high. Compute the height of the image for the maximum angular magnification for a normal eye. Suppose the eye focuses at the near point of 25 cm.
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