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A positive charge of 4.10 μC is fixed in place. From a distance of 3.10 cm a particle of mass 6.80 g and charge +3.50 μC is fired with an initial speed of 62.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away?
A five-slit system with 8.2 slit spacing is illuminated with 635nm light. Find the angular positions of the first two maxima
The viscous force on an oil drop is measured to be equal to 3.0X10^-13 N when the drop is falling through the air with a speed of 4.5X10^-4 m/s. If the radius of the drop is 2.5X10-6 m, what is the viscosity of air?
How high would 20-C water climb in a 24-mm-diameter vertical capillary tube if it makes an angle of 20- with the wall of the tube?
Four particles, one at each of the four corners of a square with2.5-m-long edges, are connected by massless rods. The masses of the particles arem1=m3=2.0kg andm2=m4=6.0kg. Find the moment of inertia of the system about thezaxis.
A homemade electroscope has 2 pieces of straw hanging from 2strings dangling from a hook. The length of the string fromtop to bottom on one side is 8 cm. When charged, the strawsstay 2 cm apart. The mass of one of the straws is .08 grams.
Burglars are trying to push a 1000 kg safe up a 20o frictionless ramp with a horizontal force of 4000N. What is Burglars are trying to push a 1000 kg safe up a 20o frictionless ramp with a horizontal force of 4000N. What is the safe's acceleration up..
question a 0.200-kg piece of aluminum that has a temperature of -163 degc is added to 1.1 kg of water that has a
A 100kg hollow sphere is neutrally buoyant and completely underwater. Its volume is 0.5 cubic meter. what fraction of this volume is helium
What is the relationship between the length of a wire and magnetic force, Is the relationship between current and magnetic force linear
A helicopter leaves its base and travels 19.0 km north. After a brief stop it flies 37.8 km south, pauses briefly and then flies 15.1 km north. Finally it flies 8.9 km south and lands. At the end of the trip, determine what is the displacement of the..
In seawater, a life preserver with a volume of 4.00×10?2m^3 will support a 72.0kg person (average density 980kg/m^3 ), compute the density of the material composing the life preserver
Two glass plates are separated with fine wires, with diameters d1 = 0.0500 mm and d2 = 0.0520 mm, as indicated in the figure. The wires are parallel and separated with a distance of L =6.80 cm. If monochromatic light with λ = 500 nm is incident from ..
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