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Question1
Three point charges are in order on a line. Charge 3 = +5.00 nC and is at the origin. Charge 2 = -2.50 nC and is at = 4.50cm. Charge 1 is at = 1.00 cm. What is sign and magnitude of charge 1 if the total force on charge 3 is zero?
Question2
A 250 block hangs from a spring with spring constant 14. At the block are 13 below the equilibrium point and moving upward with a speed of 113. What is the block's oscillations frequency? What is the block's distance from equilibrium when the speed is 30? What is block's position at?
Question3
An ocean liner leaves New York City and travels 50.0° north of east for 203 km. How far east and how far north has it left? In other words, what are the magnitudes of the components of the ship's displacement vector in the next directions?
A 0.031 kg aluminum bullet traveling at 471 m/s strikes an armor plate and comes to a stop, what is the bullet's temperature change in degrees Celsius
A 4 cm diameter loop with resistance 0.18 Omega surrounds a 2 cm diameter solenoid. The solenoid is 15 cm long, has 100 turns, and carries the current shown in the graph. A positive current is cw when seen from the left.
A sample of an unknown material appears to weigh 280 N in air and 180 N when immersed in alcohol of specific gravity 0.700. What is the density of the material
If the length of the field between goal lines in the Earth frame is 85.2 m, what length is measured in the rest frame of the particle
question1later than the sun exhausts its nuclear fuel its ultimate fate will be to collapse to a white dwarf state. in
For a camera equipped with a 51-mm focal-length lens, How far is the object from the image on the film
A 0.540-kg object attached to a spring with a force constant of 8.00 N/m vibrates in simple harmonic motion with an amplitude of 11.2 cm. Calculate the maximum value of its speed
A pendulum clock has an aluminum pendulum exactly 1.0m long when the clock is calibrated perfectly. The temperature increases by 9?C. By how much is it off at the end of one day
A physics student wants to cool a glass of Diet Cola (mostly water), initially at 27°C, by adding ice initially at -18°C. If there is 250g of Diet Cola in the glass, how much ice must they add so that the final temperature will be 0°C?
The sensor in the torso of a crash-test dummy records the magnitude and direction of the net force acting on the dummy. If the dummy is thrown forward with a force of 570N while simultaneously being hit from the side with a force of 2400-N, what f..
Electrons emitted by the photoelectric effect are accelerated and then strike a phosphorescent screen, causing it to glow more brightly than the original scene.
A speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. What is the speed at which the belt of the ramp is moving
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