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A wooden block (mass 0.1kg) is set on a rotating disk. The mass is .05m from the axis of roatation and is moving with thte disk at .3m/s. What is the minimum coefficient of friction to ensure the block does not slide outward. Please show formulas and work.
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. It vibrates with a fundamental frequency of 27.5 Hz. What is the total mass of the wire.
A pet-store supply truck moves at 25m/s north along a highway. Inside, a dog moves at 1.85m/s at an angle of 35° east of north. What is the velocity of the dog relative to road.
Compute the acceleration of each box decide maximum distance the car rolls up the hill
A cardinal (Richmondena cardinalis) of mass 4.00×10-2 and a baseball of mass 0.143 have the equal kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
In a series R-L-C circuit, the phase angle is 40.5?, with the source voltage leading the current, Find the reactance of the inductor
A child is riding across a rough field on a sled. Together, she and the sled have a mass of 73 kg. The sled is being pulled by her brother at an angle of 16º with a force of 356 Newtons. What is her acceleration if the coefficient of kinetic friction..
A diver releases an air bubble of volume 2.2 cm3 from the depth of 10 m below the surface of a lake, where the temperature is 7°C. What is the volume of bubble when it reaches just below the surface of the lake, where temperature is 25°C.
The He-Ne laser shines through a slit in the diffraction plate that is 50 cm from the screen. What fringe spacing would you expect for slits E and F if the stated slit spacing is correct? What difference must there be between the patters produced ..
A good model for a radio antenna is a dipole. P1 is on the perpendicular bisector of the dipole, and P2 is along the axis of the dipole in the direction of dipole vector ˆp. P1 and P2 are both a distance 100m from the center of the dipole.
Earlier we described the fact that entrepreneurs score significantly lower than managers on agreeableness. Explain how would you reconcile this finding with Sutton's point?
Three point charges -q,-q, and 2q occupy the verices of an equilateral triangleof side a. Find the electric field at the center of the triangle
What is the value of acceleration of gravity if a pendulum has a length of 46 cm and the pendulum completes 110 full swing cycles in a time of 132 seconds.
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