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A skier slides horizontally along the snow for a distance of 10 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is µk = 0.030. Initially, how fast was the skier going?
a river has a 5m/s current due east. With respect to the water, the boats velocity is 12m/s at 60 degress north of east. What is the velocity of the boat relative to the earth
A football is kicked such that is has an initial velocity of 30 m/s at an angle of 60 degrees above the ground. How would you calculate its maximum height
The dimensions of a parallel-plate capacitor are all increased by afactor of nine. By what factordoes the capacitance change? (The dimensions refer to the lengthand width of a plate and the spacing between the plates.)
A 13 kg dog is standing on the edge of astationary, frictionless turntable of rotational inertia 95kg·m2 and radius 2.05 m.The dog walks once around the turntable. What fraction of a fullcircle does the dog's motion make with respect to the ground?
s the speed of a wave on a string that has a mass of 3.3 kg and a length of 1.9 m while a 6.3 kg mass is hanging from the end?
Three resistors are connected in series across a 11-V power supply. what is the exact potential drop (in volts) across resistor 3
at very low signal frequencies will the maximum values of i current through the resistor and v voltage across the
In the Bohr model, the electron in H has a circular orbit. For an isolated atom, the only force on the electron is the strictly radial electrical force. Does this violates the uncertainty principle
A skateboard track has the form of a circular arc with a 3.60m radius, What is the normal force exerted on the skate boarder at the bottom of the circular arc
In effect, the first circular dark fringe in the diffraction pattern defines the size of the central bright spot on the moon. find the diameter (not the radius) of the central bright spot on the moon.
A section of hollow pipe and a solid cylinder have the same radius and mass. Which has the most rotational kinetic energy
a van de graaff generator has a dome of radius 2.0 m. a motor causes a charged insulating belt to travel continuously
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