Energy supplied to the rotational energy problem
A 1.2-kg 10-cm-diameter solid sphere is rotating about its diameter at 69 rev/min.
(a) What is its kinetic energy?
(b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball?
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In the complex ion [ML6]n+, Mn+has seven d electrons and L is a strong field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?
The rope will break if the tension in it exceeds 2.10×104 , and our hero's mass is 80.5 . 1) If the angle between the rope and the horizontal is = 11.7, find the tension in the rope.
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The 14C activity of some ancient Peruvian corn was foundto be 10 disintergrations per minute per gram of carbon. If present day plant life shows 15 dpm/g, how old is the Peruvian corn? Thehalf life of 14C is 5730 years.
If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball?
Consider an electrochemical cell constructed from the followinghalf cells, linked by an external circuit and by a KCl salt bridge.1. an Al(s) electrode in 1.0 M Al(NO3)3solution 2. an Pb(s) electrode in 1.0MPb(NO3)2 solution.
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The object is attached to the rope at a horizontal position halfway between the two poles and at a vertical distance s = 1.092m below the top of the left pole. Find the tension in each part of the rope due to the weight of the object.
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