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a 15 kg hoop of radius 1 m is spinning at a rate of 4 rotations per second
A. what is the speed in radians per second?
B. What is the speed in rotations per minute?
C.What is the angular momentum?
D. What is its moment of Inertia?
Explain why do we place guards over capacitors and where does the guard voltage come into play when using an analogue L-C meter to probe the capacitance?
A rifle with a barrel length of 56 cm fires a 14 g bullet with a horizontal speed of 350 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 13 cm.
A tow truck is pulling a car out of a ditch by means of a steel cable (Y = 2.0 x 1011 N/m2) that is 8.24 m long and has a radius of 0.402 cm. How much has the cable stretched
In which scenario do you experience the larges acceleration? Explain why using physical principles you have learned.
A 280 block on a 58 long string swings in a circle on a horizontal, frictionless table at 90.0 . What is the speed of the block.
A 1 cm3 air bubble at a depth of 280 meters and at a temperature of 4 oC rises to the surface of the lake, what is its new volume? How many micromoles (to 1 decimal place) of air are in the bubble
In a certain automobile engine with an efficiency of 19.2%, combustion of gasoline in one cylinder releases 490 J of heat. Find the total mechanical power produced by all four cylinders, operating at 48 cycles/s, or 2880 rpm
Two infinite, parallel, uniformly charged plates with charge densities +sigma and +3sigma are separated by a distance L, what is the potential of the plate on the left
A 5.06 10-5 H solenoid is constructed by wrapping 63 turns of wire around a cylinder with a cross-sectional area of 9.70 10-4 m2 , Determine the change in the length of the solenoid
A horizontal force of 80N is required to push a piece of furniture across a floor at a constant velocity, what is the net force acting on the furniture
How might a magician make the Statue of Liberty disappear? Imagine that you are sitting with some spectators on a circular platform that, unknown to all of you, can rotate very slowly. It is evening, and you can see the Statue of Liberty a short dist..
Object A, which has been charged to + 29.2 nC, is at the origin. Object B, which has been charged to - 28.9 nC, is at ( x,y ) = ( 0.0;{rm cm},; 1.50 cm ).What is the y-component of force (vec{F}_{rm A ; on ; B})_{rm y} on B due to A.
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