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A cannon fires a cannonball from the top of a wall at a speed of 25.58 m/s and an angle of 17.44 degrees from the horizontal. A cannonball that was accidentally dropped from the top of the castle hits the water below in 1.62 s. What is the horizontal distance from the wall where the fired cannonball hits the ground?
Two very large parallel plates are oppositely and uniformly charged. The field between the plates is 1.7×106N/C, How much total charge is on each plate if they are 18.0cm on a side
Dust particles are pulverized rock, which has density 2500 kg/m3. They are approximately spheres 20 ?m in diameter. what is the root-mean-square speed (thermal speed) of a dust particle at 60°C
a proton is moving in a circular path with a radius of 8.28 cm and is moving perpendicular to a magnetic field of 57.9 mT. determine the kinetic energy of the proton
A four-turn circular wire coil of radius 0.565 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.340 T. what is the average induced emf in the wire during this time
A 1.67 m tall person lifts a 2.34 kg book from the ground so it is 2.22 m above the ground. Calculate the work done by the person
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, What is the change in the Helmholtz potential
What are changes in the object's momentum and velocity. How much work is done if the similar tension is directed parallel to the snow.
In a baseball game, the catcher stops a 35 m/s pitch. How much net work is done on the baseball as it is caught? what average force did the mitt exert on the ball
A 3.07 kg particle has a velocity of (3.10 i hat - 4.04 j hat) m/s. Find the magnitude and direction of its momentum
What is the voltage as a function of time accross a capacitor C connected in a single series loop with a resistor R, By what phase angle does current lead voltage
A 250 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, What fraction of the power carried by the line is this
A 170? resistor, a 9.00×10?2?F capacitor, and a 350mH inductor are connected in series to a voltage source with amplitude 240V, What is the resonance angular frequency
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