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a cylinder with radius r and mass m has a density that increases linearly with distance r from the cylinder axis p ar
a pendulum consists of a 31 kg stone swinging on a 42 m string of negligible mass the stone has a speed of 79 ms when
a 52 cm times 38 cm razorblade is placed on the surface of a beaker of water though the density of the razorblade is
a 150 grinding wheel is in the form of a solid cylinder of radius 0140 part a what constant torque will bring it from
a steel ball density 7860kgm3 with a diameter of 68 cm is tied to an aluminum wire 88 cm long and 20 mm in diameter
a charged capacitor is connected to a resistor and a switch as in the figure below the circuit has a time constant of
a family wishes to purchase a heat pump for their home the get-it-cheap co sells a heat pump that has an operating
a lamp r 146 an electric heater r 24 and a fan r 49 are connected in parallel across a 122 v linea what total
vertically polarized light with an intensity of 040 wm2 passes through a polarizer whose transmission axis is at an
in 02s a coil of die with 50 loops experiences an average induced emf of 9v due to a changing magnetic field
a wooden block with mass of 55 grams is floating in a pool ranging up and down in simple harmonic motion of frequency
a stone is dropped at t 0 a second stone with 6 times the mass of the first is dropped from the same point at t 100
a hollow sphere of radius 030 m with rotational inertia i 0098 kg m2 about a line through its center of mass rolls
select one of the following regions of the electromagnetic spectrum radio wave infrared ultraviolet x-ray gamma rays
at a construction site a 620 kg bucket of concrete hangs from a light but strong cable that passes over a light
an 900 kg purple pickup truck tows a small 200 kg trailer using a relatively lightweight tow rope as shown in the
a uniform magnetic field is at right angles to the plane of a wire loop if the field decreases by 02t in 10x10-3s and
a satellite 83x107 km above the surface of a celestial body whose radius is 39000 km and whose mass is 60x1027 kg
light of intensity 05 wm2 passes through the pupil of one of your eyes and eventually falls on your retina the radius
a rubber ball is shot straight up from the ground with speed v0 simultaneously a second rubber ball at height h
a baseball is confined between two thick walls a distance 05m apart calculate the zero point energy of the baseballmass
the maximum current in a superconducting solenoid can be as large as 351 ka if the number of turns per meter in such a
assuming that the earth is spherical and recalling that latitudes range from 0 degrees at the equator and 90 degrees n
a physics professor is pushed up a ramp inclined upward at an angle 280 above the horizontal as he sits in his desk
there are 4 charges assembled into a square 2 cm on a side q1 1nc q2 2nc q3 3nc and q4 4nc what is the potential at the