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A 10 inch diameter circular blade of a saw slows from 4100 rpm to 0 rpm in 4 sec.
Determine the angular acceleration of the blade?
Determine the distance traveled by a point on the rim of the blade during the deceleration?
Determine the magnitude of the net displacement of a point on the rim of the blade during the deceleration?
A ball of mass 1.024 g and positive charge q =40.3microC is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of theta=15.0o from the vertical. What is the magnitude of the electric field..
Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = 5021 kg), which is made of steel (? = 7770 kg/m3). How many balls are required to float the ship
Two objects with masses of 2.60 kg and 6.50 kg are connected by a light string that passes over a frictionless pulley. Determine the tension in the string in Newtons
In an experiment, light of wavelength 600 nm falls on two slits which are spaced at a distance of .5 mm. What is the distance of the slit to the screen
A light wave has a 670{\rm nm} wavelength in air. Its wavelength in a transparent solid is 420{\rm nm}. What is the light's frequency in the solid
A collimated beam of light whose wavelength is 495 nm falls on a screen containing a pair of long, Determine the spacing between the two third-order bright fringes
Assume that air pressure is 1.00 atm and the air temperature is 23o C. If the abolute zero apparatus is open to the air, how many moles of air will it hold
The diffusion constant for the alcohol ethanol in water is 1.24 10-9 m2/s. A cylinder has a cross-sectional area of 3.95 cm2 and a length of 1.84 cm. what mass of ethanol diffuses through the cylinder
A wrecking ball (weight = 5010 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3670 N. As the drawing shows, a support cable runs from the top of the boom to the tractor.
A proton, which is the nucleus of a hydrogen atom, can be modeled as a sphere with a diameter of 2.4 fm, what is the density of the proton
A large sponge has forces of magnitude 12 N applied in oppositedirections to two opposite faces of area 42 cm^2. What is theshear modulus of the sponge
Scientists have recently shown that a sample of cocaine can be traced to its country of origin by measuring the ration of carbon-13 to nitrogen-15 (both naturally occuring, stable nuclides) in the cocaine sample.
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