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A 19.1 kg box initially at rest is pushed 7.26 m along a rough, horizontal floor by a constant applied horizontal force of 64.6745 N. If the coefficient of friction between box and floor is 0.275, discover the work done by the applied force. The acceleration of gravity is 9.8 m/s2.
consider a uniform electric field of 50 nc directed toward the east. if the voltage measured relative to ground at a
two point charges lie on the x axis. a charge of 7.5 microc is at the origin and a charge of -5.5 microc is at x 10.0
An object has a weight of 0.882 Newton. It is suspended from a scale, which reads 0.735 Newton when the piece is submerged in water. Determine the volume and density of the piece of metal
Cat rides a merry-go-round turning counter clock wise at a uniform speed. There, the cat is under uniform circular motion. what is the time taken by the cat to complete a full circle
Monochromatic light with a wavelength of 362 nm passes through a single slit and falls on a screen 82 cm away. If the distance of the ?rst-order dark band is 0.49 cm from the center of the pattern, what is the width of the slit? Answer in units of cm
a mass is fixed to a spring and slides along a surface without friction. the mass is 050 kg and the spring constant is
The model airplane in Figure 5.6 is flying at a speed of 11.6 m/s on a horizontal circle of radius 19.9 m. The mass of the plane is 1.12 kg. What is the net work done on the plane
nobel laureate richard feynman 1918-1988 once said that if two persons stood at arms length from each other and each
This problem is in a beaker. The large container shown in the picture above is filled with a liquid of density 1.1E3 kg/m3. A small hole of area A=2.5E-6 m2 is open in the side of the container a distance h below the liquid surface, which allows a..
An 85-kg jogger is heading due east at a speed of 1.9 m/s. A 55-kg jogger is heading 24° north of east at a speed of 3.8 m/s. Find the magnitude and direction of the sum of momenta of the two joggers.
A fire engine moving to the right at 40 m/s sound its horn (frequency = 500 Hz) at the two vehicles shown in the figure. The car is moving to the right at 30 m/s, while the van is at rest. (a) What frequency is heard by the passenger in the car?
A 3.1-cm-diameter parallel-plate capacitor has a 2.2mmspacing. The electric field strength inside the capacitor is 1.3×105V/m. What is the potential difference across the capacitor
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