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A box of mass 8.0 kilogram is accelerated from rest across a floor at a rate of 3.0 m/s for 6.0 s. Obtain what is the net work done on the box?
A room with dimensions 7M X 8M X 2.5M is to be filled with pure oxygen at 22.0 degrees C and 1.00 atm. The molar mass of oxygen is 32.0 g/mol. How many moles of oxygen are required to fill the room
a 6100-kg satellite is in a circular earth orbit that has a radius of 2.7x107 m. a net external force must act on the
A small space telescope at the end of a teather line of length "L" moves at liner speed "v" about a central space station, what will be the linear speed of the telescope if the length of the line is reduced to 0.33L
A real ammerter has non-zero resistance, and so acts like aresistor in a circuit. One ammerter has resistance 0.5Ω. Whenit is placed across a battery (with emf ε and internalresistance r), the terminal voltage of the battery is 5.0V.
The intensity level of 39.29 harmonicas in a harmonica band is 70.03 dB. Compute the intensity level generated by one harmonica
A converging lens forms an image that is one half the size of the object when the object is placed 80.0 cm in front of the lens. Where the object should be placed in order to produce an image that is twice the size of the object?
a flat mirror and a wall meet at a 45 degree angle. light strikes the mirror 10 meters from the corner at an angle of incidence of 45 degrees
A certain lightbulb has a tungsten filament having a resistance of18 Ω at 25°C and 150 Ω whenhot. Assume R = R0[1 +α(T - T0)] can be usedover the large temperature range here. Find the temperature of the filament when it is hot.
A window repairman picks up one end of a large sheet of glass. What is the larges angle that he can tip the large sheet before the second sheet slips
you produce an image of the sun on a screen using a thin lens whose focal length is 23.0 cm. what is the diameter of
The inductance of a closely packed coil of 500 turns is 8.9 mH. Calculate the magnetic flux through the coil when the current is 7.4 mA
You are using a grating with 1000 lines per millimeter; the angle for the first order maxima is ? = 16°. Find the angle for the second order maxima
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