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A 2.60-kg block is attached to a horizontal spring that has a spring constant of 190. N/m. At the instant when the displacement of the spring from its unstrained length is -0.115 m, what is the acceleration a of the object? In your answer, be sure to include the proper plus or minus sign.
A converging lens with a focal length of 6.20cmforms an image of a 3.00mm -tall real object that is to the left of the lens. Where are the object and image located
A 0.93-µF capacitor is charged by a 37.0-V power supply. Find the maximum current in the resulting oscillations
A step down transformer (turns ratio 1:8) is utilized with an electric train to reduce the voltage from the wall receptacle to a value required to operate the train, when the train is running, the current in the secondary coil is 1.6A. What is the cu..
a man used enough energy to go from aardvark to beeville. on the first day he traveled 13 of the distance. on day two
A +50 µC charge is placed 34 cm from an identical +50 µC charge. How much work would be needed to move a +0.42 µC test charge from a point midway among them to a point 8.0 cm closer to either of the charges?
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field. Given the charge on the ball is 2.00 ?C , find the strength of the field. The angle that the string makes with the vertical is 8.00° N/C.
A railroad car of mass 2.3 x 104 kilogram moving at 3.00 m/s collides and couples with two coupled railroad cars, Obtain what the speed of three coupled cars after collision
A 58-kg bicyclist rides his 10.3-kg bicycle with a speed of 13.8 m/s. Assuming constant acceleration, What is the magnitude of the braking force
You decide to use a hair from hisgoat, which your host knows (through careful desert wisdom) has a thickness of 10 μm.You have a red laser pointer with wavelength 660 nm. How many dark fringes can you show them on a 1.1 m x 1.1 m screen that is 10 ..
A 52 ohm resistor is connected across a battery, and a 24 mA current flows. Determine what is the internal resistance
Astronauts put their spaceship into orbit about a planet. How far above the planet's surface are they orbiting
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