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Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. The electric field at a point P, which is 0.50 m from the center of the sphere, is 15,000 N/C and is directed radially outward. At what distance from the center of the sphere does the electric field have the same magnitude as it has at P?
The radii of curvature of the surfaces of a thin converging meniscus lens are R1 = 12.0cmand R2 = 28.0cm. Is the final image erect or inverted with respect to the original object
There are two coherent microwave sources in the x-y plane. These sources are emitting in phase at a wavelength of ? = 1.00 cm. where is the first source located on the y axis
You are pushing a 142 kg wooden crate in a straight line a distance of 5.1 m across a wooden floor. The crate is speeding up at 0.30 m/s^2. What is the work done by friction on the crate
A particle P with mass 12 kg has position vector r (r = 6.5 m) and velocity v (v = 5.0 m/s)as shown in the figure. It is acted on by force F (F = 4.0N). All three vectors lie in the xy plane. About the origin, what is the z-component of the angula..
A golfer imparts a speed of 29.2 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. How much time does the ball spend in the air?
A passenger car traveling down a rough road bounces up and down at 1.2Hz with a maximum vertical acceleration of 0.25m/s2, What is the maximum speed of the oscillation
You are driving to grocery store at 15 m/s .You is 140 m from an intersection when the traffic light turns red. Suppose that your reaction time is 0.70 s. and that your car brakes with constant acceleration. How far are you from the intersection whil..
a plane convex lens made of glass n 1.50 with one flat surface and the other having a radius of 20 cm. what is the
Lightning bolts can carry currents up to approximately 20 kA. We can model such a current as the equivalent of a very long, straight wire. If you were unfortunate enough to be 5.1 m away from such a lightning bolt, how large a magnetic field would y..
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. What is the average net force (magnitude and direction) exerted on the ball by the cushion
In a very silly game at the coffee shop, you see who can slide the coffee cup closest to the edge of the table without sending it over the edge. How far from the edge of the table does the cup land
A 73.7-kg person puts on a life jacket, jumps into the water, andfloats. What is the density of the life jacket
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