Concave mirror to project an image of the object on the wall
A luminous object is 4.80m from a wall. You are to use a concave mirror to project an image of the object on the wall, with the image 2.23 the size of the object.
How far should the mirror be from the wall?
What should its radius of curvature be?
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Identify the approximate values of each of the parameters listed below, based on the graph. Based on this graph, what is the modulus of elasticity of this copper alloy?
Now consider a nucleus of charge Ze with two electrons. Use the variational principle to estimate the ground-state energy.
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Water is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 18 MPa. The condenser pressure is 6 kPa. Determine (a) the net work per unit mass of steam flow, in kJ/kg.
A refrigerator is to remove heat from the cooled space at a rate of 300 KJ/min to maintain its temperature at -8C. if the air surrounding the refrigerator is at 25C, determine the minimum power input required for this refrigerator.
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A sinusoidal voltage E=200sin314t is applied to a resistor of 10 ohm resistance. Calculate power diddipated as heat in watt.
What is the speed of the object at the instant when the spring is stretched by 0.042 m relative to its unstrained length?
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Show it in my post "Discussion Question: "In what ways do personal identity and self-concept influence an individual's motivations for engaging in addictive beh
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