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A particle has shifted along some trajectory in the plane xy from point 1 whose radius vector r1 = i 2j to point 2 with the radius vector r 2 = 2i - 3j. During that time the particle experienced the action of certain forces, one of which being F = 3i 4j. Find the work performed by the force F. (Here 7.1, r2, and F are given in SI units).
It was revealed that 120 people had only 1 admission, 81 had 2 admissions, 48 had 3 admissions, 18 had 4 admissions, 18 had 5 admissions, and 15 had 6 admissions or more admissions. Does the data support the mayor's claim? Show the calculations or..
One generator uses a magnetic field of 0.185 T and has a coil area per turn of 0.0405 m2, What magnetic field should be used in the second generator
Racing on a flat track, a car going 32 m/s rounds a curve 56 m in radius. What is the car’s centripetal acceleration? What minimum coefficient of static friction among the tires and road would be required for the car to round the curve without slippi..
An ice-cube tray is full with 77.9-gof water. After the filled tray reaches an equilibrium temperature 20.0°C, it is placed in a freezer set at -8.00°C to make ice cubes. Explain the processes that occur as energy is being removed from the water to m..
A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. at what rate does the box accelerate down the slope
A liquid compresses 2.0 percent when subjected to a pressure of 34 MPa. What is the bulk modulus of the liquid
A trumpet player standing at rest plays a note of frequency 1200 hertz. Determine the speed of the automobile
The potential difference across the filament of a lamp is maintained at a constant level while equilibrium temperature is being reached. It is observed that the steady-state current in thelamp is only one-ninth of the currentdrawn by the lamp when..
You push a 325-N trunk up a 20.0 degree inclined plane at aconstant velocity by exerting a 211-N force parallel to the plane's surface. estimate the magnitude and direction of the friction force
Mercury has a mass MP = 3.18 x 1023 kg, an orbital period T = 88.0 days, and an orbital radius r = 5.79 x 10^10 m. Find the angular speed of Mercury about the Sun
a fan blade is rotating with a constant angular acceleration of 14.0 rads2. at what point on the blade as measured from
A loop of diameter 15 cm is placed in a uniform electric field of magnitude 6.0 102 N/C. (a) What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop? N·m2/C.
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