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Two 45.0 x 10-9 C point charges are located on the x axis. One is at x = 0.25 m, and the other at x = - 0.25 m.
1) A third identical charge is placed on the y axis at y = 0.25 m. discover the magnitude of the force acting on this third charge? Answer in Newton’s.
2) Now the third identical charge is placed on the y axis at y = 2 x 0.25 m. discover the magnitude of the force acting on this third charge? Answer in Newton’s.
a sample of rock from an asteroid is assayed and found to contain 3.62 parts per million uranium, how old is this sample
A river is flowing with a constant speed of 2.00 km/h. A swimmer starts at a dock, swims upstream to another dock that is 550 m away, how long does her round trip take
In a double-slit arrangement the slits are 1.60 10-5 m apart. If light with wavelength 440 nm passes through the slits, what will be the distance between the m = 4 and m = 8 maxima on a screen 1.00 m away?
The heating element in an electric drier operates on 240 V and generates heat at the rate of 2.0 kW. The heating element shorts out and, in repairing it, the owner shortens the Nichrome wire by 10%. (Suppose the temperature is unchanged.
a flat sheet of paper of area 0.150 m2 is oriented so that the normal to the sheet is at an angle of 50deg to a uniform
A 3.1kg block of wood sits on a table. A 3.0g bullet, fired horizontally at a speed of 370m/s, What is the speed of the block immediately after the bullet exits
Which kinetic energy equals to rotational motion
A 5 gram bullet traveling in 20 0C air at 300 m/sstrikes a flat steel plate and stops. What is the final temperature of the lead bullet
A 5.00 kilogram small bullet is fired horizontally into a 1.20-kilogram wooden block resting on a horizontal surface. Compute what was the initial speed of the bullet
a water balloon is launched from ground level with an initial velocity of 12.4 m/s @ 27.0° above the horizontal. Find how high it goes above the launch height
q1. a 2.2 kg ball is shot straight upward into the air with an initial speed of 7.8 ms. the ball is fired from the
A thin uniform rod has a length of 0.520 and is rotating in a circle on a frictionless table. calculate the mass of the bug and rod
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