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Water skiers often ride to one side of the center line of a boat, as shown in the figure . In this case, the ski boat is traveling at 15 m/s and the tension in the rope is 79 N .
If the boat does 3600 J of work on the skier in 53.7 m, what is the angle between the tow rope and the center line of the boat?
A catapult with a radial arm 4.19 m long accelerates a ball of mass 19.1 kg through a quarter circle. The ball leaves the apparatus at 41.6 m/s. Find the moment of inertia of the arm and ball
Nichrome wire of cross-sectional radius 0.758 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
a double-slit interference experiment is performed using blue light from a hydrogen discharge tube 486 nm. the
A fly wheel with a radius of 0.400m starts from rest and accelerates with a constant angular acceleration of 0.300 rad/sec^2. find the resultant acceleration of a point on its rim after 2 sec
The equation F = arv + br2v2 gives the magnitude of the resistive force (in newtons) exerted on a sphere of radius r (in meters) by a stream of air moving at speed v (in meters per second), where a and b are constants with appropriate SI units.
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object and the slope surface is 0.15. What is the object's speed at the bottom of the slope
The plate separation of a charged capacitor is 0.0690 m. A proton and an electron are releasedfrom rest at the midpoint between the plates. Ignore the attractionbetween the two particles, and determine how far the proton hastraveled by the time the e..
An oil production well produces from a formation that is 10 ft thick and has a permeability to oil of 50 millidarcies. The well produces only oil. Estimate the steady state production rate in bbl/day, assuming that the pressure (P) at the effective d..
Two objects with masses of 3.90 kg and 6.20 kg are connected by a light string that passes over a frictionless pulley, as in the figure below. (The figure shows a pulley with the two objects on opposite sides hanging vertically) (a) Determine the ..
In an internal combustion engine, air at atmostpheric pressureand a temperature of about 20 degrees celcius is compressed in the cylinder by a piston to 1/9 of its original volume, Estimate the temperature of the compressed air
How many nitrogen molecules must strike a 1 cm2 surface each second to exert a pressure of 1 atm (Assume that the molecules are all moving at the same speed, at a temperature of 300K, and 45 degree angle to the wall).
you are on an airplane traveling 30deg south of due west at 150.0 ms with respect to the air. the air is moving with a
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