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A rifle with a muzzle velocity of 470 m/s shoots a bullet at a target 49.6 m away. How high above the target must the rifle barrel be pointed to ensure that the bullet will hit the target? Neglect air resistance.
A positive charge of magnitude Q1 = 6.5 nC is located at the origin. A negative charge Q2 = -6.5 nC is located on the positive x-axis, Calculate the angle in degrees of the electric field at point P relative to the positive x-axis
Three charges (q1 = 7.6 ?C, q2 = -4.7 ?C, and q3 = 1.1?C) are located at the vertices of an equilateral triangle with side d = 6.1 cm. q1 is on the bottom left, q2 is on the bottom right, and q3 is at the top.
Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. How wide is the slit
In a classic carnival ride, patrons stand against the wall in a cylindrically shaped room. If a new person with mass 94.0 kg rides the ride, what minimum coefficient of friction between the wall and the person would be needed
A roller coaster at an amusement park has a dip that bottoms out ina vertical circle of radius r. A passenger feels the seat of thecar pushing upward on her with a force equal to twice her weight asshe goes through the dip. If r = 20.0 m, how fast..
two identical metal spheres a and b are connected by a metal rod. both are initially neutral. 1.6times1012 electrons
the position of a water balloon from a 100m high cliff is given by rt 3ti t2j sin3.14t2km. find the location
A converging lens of focal length 7.99 cm is 19.7 cm to the left of a diverging lens of focal length -6.02 cm, Calculate the magnification of the coin's final image
In a region where there is a vertical magnetic field of 1.92 10-2 T, a ring of radius 1.09 cm is flipped in the air as one would flip a coin, Find the maximum instantaneous emf induced in the ring
Suppose a simple pendulum is used to measure the acceleration due to gravity at various points on the Earth. find the corresponding variation in the period of the pendulum
A merry-g-round (I=1/2MR^2) of mas 250kg and radius 3m has been spun so that is has an angular velocity of 15 rad/s. what is the final angular velocity of the merry-go-round
A 0.227-kg particle undergoes simple harmonic motion along the horizontal x-axis between the points x1 = -0.279 m and x2 = 0.469 m. The period of oscillation is 0.577 s. Find the frequency, f, the equilibrium position, xeq, the amplitude, A, the maxi..
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