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A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. The ball leaves the club at a speed of 17.0 m/s at an angle of 40.5° above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air resistance, find the speed of the ball just before it lands.
A 25 kg box sits on a table. The coefficient of static friction µs between table and box is 0.28, and the coefficient of kinetic friction µk is 0.20.
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.875 rad/s. You, with a mass of 69.5 kg, Calculate the total angular momentum of the system
a source emits a sound uniformly in all directions. a radial line is drawn from this source. on this line determine the
A yo-yo has a rotational inertia of 1140 g·cm2 and a mass of 81.3 g. Its axle radius is 3.27 mm, and its string is 106 cm long, What is the magnitude of its linear acceleration, rotational kinetic energy
Compute the force on an electron if the accelerating plates are held at a potential dissimilarity of 600. (Note this is Vg.) Suppose a distance of 1cm among the plates. Compare this force, Fe, to the force due to gravity, Fg; I.e., compute Fg/Fe. Can..
deepas uncle was surprised to see the fast changes in the world. he is not so educated. he asked deepa to tell him the
At times prior to t = 0, the switch is open. The switch is closed at t = 0. When I=34 mA, What is the potential difference across the inductor? Answer in units of V.
Lurking alligators. An alligator waits for prey by floating with only the top of its head exposed, so that the preycannot easily see it. One way it can adjust the extent of sinkingis by controlling the size of its lungs.
Determine the magnetic force on a 3.50 meter current carrying wire that is parallel to the field lines of a 2.30 T magnetic field, when the wire draws a current of 2 Amp
An iron rod is heated by a welder's torch. Initially it glows a dull red, then a brighter orange, and finally very bright white. Discuss this sequence in terms of black-body radiation.
A daredevil decides to jump a canyon. Its walls are equallyhigh and 15 m apart. What minimum speed must he have in order to clear the canyon
A ray of light traveling in air enters benzene contained in a rectangular tank whose walls are made of ice. The bottom of the tank is a mirror. What angle does the ray make with the horizontal (normal) when it reaches the side of the tank
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