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A rope pulls a 100-kg skier up a frictionless slope inclined at300 to the horizontal. The tension in the rope is 600 Nand the skier move a distance of 100 m up along the incline fromthe bottom of the hill.
a. What is the work done bytension?
b. If the skier starts from restat the bottom of the incline, use the energy conservation equationto find his speed after traveling 100 m along the incline.
A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 μC and each charge experiences an electrostatic force of magnitude 85.0 N when the separation between them is .270 m. Find q1 and q2.
Find the equivalent capacitance of a 4 uF , 6uF and 8uF capacitor connected in parallel that has a 12 volt battery connected in series with the parallel capacitors. Also, find the total charge on the plates and the voltage across each capacitor.
A hypodermic needle consists of the plunger of circular cross-section that slides inside a hollow cylindrical syringe. When the plunger is pushed, the contents of syringe are forced through a hollow needle.
Which of the following is not a valid criterion for the acceptance of a physical law or theory?
Boat A negotiates a curve whose radius is 405 m. Boat Bnegotiates a curve whose radius is 150 m. Each boat experiences the same centripetal acceleration. What is the ratio of the speed ofboat A to that of boat B?
The temperature of the eardrum provides a reliable measure of deep body temperature and is measured quickly with ear thermometers that sense infrared radiation. How long does the measurement take
A spring loaded ballistic pendulum gun requires an increasing force to load. When loading a ball of mass 0.056 kg, how high would ball rise if it was fired verticall upward
Assume you are a medieval knight attacking a castle with a canon. The ball leaves the cannon with a speed of 40.9 m/s. What is the time of flight of the cannon ball
A vertical spring has one end attached to the ceiling and a 2.50-kg fish attached to the other one. How far down the fish will drop before starting to come back
A capacitor has parallel plates of area 12cm^2separated by 2.5 mm. The space between the plates is filled with polystyrene (K=2.6,Em=2.0*10^7 V/m). Find the permittivity of polystyrene
A man applies a force of F = 3.00 102 N at an angle of 60.0° to a door, x = 2.20 m from the hinges. Find the torque on the door
Equipotentials between two parallel lines with a floating circular electrode: I dont need to know the exact potentials, What should be the potential inside the electrode
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