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An astronomical telescope is being utilized to examine a relatively close object that is only 109.00 m away from the objective of the telescope. The objective and eyepiece have focal lengths of 1.400 and 0.0920 m, correspondingly. Noting that the expression M =- fo/fe is no longer applicable as the object is so close, use the thin-lens and magnification equations to discover the angular magnification of this telescope.
A firm wants to determine the amount of frictional torque intheir current line of grindstones, so they can redesign them to bemore energy efficient. find the frictional torque exerted on the grind stone
A new fabric is made to help athletes stay cool. It has a conductivity constant of 94.465 J/(s m K). what is the power of the materials thermal conductivity
a stationary particle of charge q 2.4 times 10-8 c is placed in a laser beam an electromagnetic wave whose intensity
A certain playground merry-go-round is essentially an 80-kg iron disk 2.0 m in radius. How long does it take the merry-go-round to complete a revolution now
In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. find the change in your weight
You have a 12 oz cup of coffee at 180 degrees F. you add 2 ounces of cold water at 40 degrees F. What is the tempertaure of the coffee?
The mass of a disk is 0.5 kg and it's radius is 15 cm. Calculate the moment of inertia for the disk if it is pivoted about an axis through the center of mass of the disk.
The capacitor in an RC circuit(R = 110 Ω, C = 50 μF) is initially uncharged. Calculate the current in the circuit one time constant (τ=RC) after the circuit is connected to a 9.0 Volt battery
a proton travels with a speed of4.90106ms at an angle of 65degwith the direction of a magnetic field of magnitude
Heat Q flows spontaneously from a reservoir at 445 K into a reservoir at 265 K. Because of the spontaneous flow, 2620 J of energy is rendered unavailable for work when a Carnot engine operates between the reservoir at 265 K and a reservoir at 248 K. ..
The immediate cause of many deaths is ventricular fibrillation, which is an uncoordinated quivering of the heart. An electric shock to the chest can cause momentary paralysis of the heart muscle, after which the heart sometimes resumes its proper ..
A Styrofoam box has a surface area of 0.74 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, determine the thermal conductivity of the Styrofoam
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