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An iceboat of mass 100 kg is at rest on a frictionless frozenlake when a sudden wind exerts a force Fwind ofmagnitude 200N, toward the east, on the boat. Due to theangle of the sail, the wind causes the boat to slide in a straightline for a distance of 8.00m in a direction 20.0 degree north ofeast. What is the velocity of the iceboat at the end of the8.00m distance?
The magnetic field perpendicular to a single 14cm diameter circular loop of copper wire decreases uniformly from 0.750 T to zero. If the wire is 2.25 mm in diameter, how much charge moves past a point in the coil throughout this operation.
A speck of dust on a spinning DVD has a centripetal acceleration of 20 m/s^2. A) What is the acceleration of a different speck of dust that is twice as far from the center of the disk? B) What would be the acceleration of the first speck of dust if t..
Consider two transformers. Transformer A has 300 turns on its primary and 500 turns on its secondary. What is the amplitude of the secondary voltage on transformer B
A container of 1m^3 contains one cubic meter of liquid water at a temperature of 0 degrees Celsius. calculate heat current in radiation leaving the cube
A gas in a cylinder with a piston that slides freely within is adiabatically expanded from 1.5 to 1.7 m3. by what amount did the internal energy of the gas change during this expansion
A flywheel comprises a uniform circular disk with a mass of 101.0 kg and a radius of 1.1 m. It rotates with an angular velocity of 1183 rev/min. what is the tangential force
On the Moon\'s surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. What is the difference in travel time for light that travels only through space to the moon and back and light that travels through..
A pitcher throws a curveball that reaches the catcher in 0.59 s. The ball curves because it is spinning at an average angular velocity of 380 rev/min on its way to the catcher's mitt. What is the angular displacement of the baseball as it travels ..
An Olympic skier moving at 20m/s down a 30o slope encounters a region of wet snow and slides 145 m before coming to a stop. What is the coefficient of friction between skis and snow if the combined mass of the skier and skis is 55 Kgm.
A 0.250 mm thick strip of calcium metal is placed in a perpendicular magnetic field of 5.00T. how many free electrons per calcium atom are there
One possible means of achieving space flight is to place a perfectly reflecting aluminized sheet into Earth 's orbit and to use the light from the Sun to push this solar sail. What force is exerted on the sail
Two point charges of + 40.0 ?C and - 10.0 ?C are separated by a distance of 20.0 cm. A +7.00 ?C charge is placed midway between these two charges. What is the electric force acting on this charge
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