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A 1.0 kg mass, hanging vertically from the bottom of an inverted cone, is held in place by a 2.0 kg wheel that is rolling (without slipping) with a constant speed in a horizontal circle on the inside of the cone, as shown in the figure. They are attached by a string that passes through a pulley and a hole in the middle of the cone. If the cone makes an angle of 20 degrees with respect to the horizontal and the wheel is always 1.0 m from the center line of the cone.
What is the maximum and minimum speed with which the wheel can go to keep the hanging mass in place, given the coefficient of static friction between the cone and the wheel is 0.40.
Two pieces of the same wire have the same length. From one piece, asquare coil containing a single loop is made. From the other, acircular coil containing a single loop is made. The coils carry different currents.
You are about shoot two equal cannonballs straight up into the air. Obtain how many times higher will the first cannonball go compared to the second
If an electric field wave oscillates north and south, and the wave is traveling straight up, then what direction does the magnetic field wave oscillate?
a sphere of radius a in free space is nonuniformly charged over its surface such that the charge density, Compute the total charge of the sphere
We supply 132 J of heat to an engine with 11.2 % efficiency. How much work (J) can the engine do and How much heat (J) must the engine exhaust?
An electron is confined in a one-dimensional box. Two adjacent allowed energies of the electron are 2.8x10^-19 J and 3.5x10^-19 J. What is the length of the box
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A 25 N force at 60° is required to set a crate into motion on a floor. What is the value of the static friction
A 2.00 kg particle moves in the xy plane with a velocity of v = (4.00 - 3.30 ) m/s. Determine the angular momentum of the particle
A large spool in an electrician's workshop has of 50 m of insulation coated wire coiled around it. What is the length of wire remaining on the spool
A car of mass M= 1690 kg oscillates on its springs at a frequency f=0.44 Hz and an amplitude A=0.58m. What is the total energy of this oscillation
a concave mirror f 54 cm produces an image whose distance from the mirror is one-third the object distance. determine
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