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A solid uniform 38.9kg ball of diameter 36.2cm is supported against a vertical frictionless wall using a thin 30.0cm wire of negligible mass.
a) draw a free body diagram/force vectors
b) find tension in the wire
c) how hard does the ball push against the wall (N)?
A round object has a rotational inertia of I = ?MR2, where ? is a constant, M is its mass and R is its radius. What fraction of the total kinetic energy is rotational
What is the speed of the center of mass
A Carnot engine operates between 27C and 927C and preforms 4800 J of work. Calculate the net entropy change during one cycle
A triangle has its corners located at the points (x,y) = (12.00,15.00), (x,y) = (9.00,8.00) and (x,y) = (0,0). Calculate the area of the triangle
A cat rides a merry-go-round while turning with uniform circular motion. At time t1 = 2.00 s, the cat's velocity is v1 = (5.50) i + (4.00 m/s) j, What is the magnitude of the cat's centripetal acceleration
Find out the intensity if the frequency is increased to 2.90 kHz while constant displacement amplitude is maintained.
A 130kg mail bag hangs by a vertical rope 3.6mlong. A postal worker then displaces the bag to a position 2.2m sideways from its original position, What horizontal force is necessary to hold the bag in the new position
How many conduction electrons are there in a 3.50 mm diameter gold wire that is 50.0 cm long
Use the ideal gas approach to find the thermal velocity, and determine the scaling law based on the resulting equation
One of the harmonics of a column of air open at one end and closed at the other has a frequency of 448 Hz, What is the fundamental frequency of the air column
A steel wire is used to stretch a spring. An oscillating magnetic field drives the steel wire back and forth. what stretch of the spring produces a standing wave with six nodes
A vertical square plate (10' x 10') is used to dam a channel. determine the total resultant force on the plate and the location
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