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A particle with charge -3.74 x 10-6 coulombs is released at rest in a region of constant, uniform electric field. Suppose that gravitational effects are negligible. At a time 5.86 s after it is released, the particle has a kinetic energy of 4 x 10-9 joules. Compute how long after the particle is released has it travelled through a potential difference of 0.351 volts?
two children 50.0 kg each sit on opposite ends of a narrow board with length of 4.60 m and mass of 40.0 kg which can be
A toroid having a square cross section, 4.40 cm on a side, and an inner radius of 13.1 cm has 660 turns and carries a current of 0.801 A. What is the magnitude of the magnetic field inside the toroid
a 1.0m--tall vertical tube is filled with 20c water. a tuning fork vibrating at 575hz is held just over the top of the
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
A tortoise can run with a speed of 9.0 cm/s, and a hare canrun 20 times as fast. in a race, how long does the race take
A 9000-kg boxcar traveling at 16.0 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 6.00 m/s
In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground. What is the launch speed needed to hit the bulls-eye
a metallic surface is illuminated with light of wavelength 400 nm if the work function for this metal is 2.487 eV what the velocity of the ejected electrons would be
A 20 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.10 m-long string. The balls undergo a head-on, perfectly elastic collision, after which the 110 g ball swings out to a maximum angle t..
A gas consists of 4.65 grams of oxygen and4.65 grams of nitrogen and occupies a volume of 0.50 liter at a temperature of345 K. Discover the number of gas molecules. Discover the partial pressure of the oxygen.
A turbine in an electric power plant rotates at 3600 rpm. Discover its angular speed in radians/second, and decide the linear speed of a point 72cm from the axis of rotation. The power plant shuts down, and the turbine coast to a halt in 590s. If the..
A 42.0 kg block of ice slides down the plane incline 34.0 degrees. Assuming friction is negligible, what is the acceleration of the block down the incline
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