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An electron is placed in a uniform electric field of strength 195 N/C. If the electron is at rest at the origin of a coordinate system at t = 0 and the electric field is in the positive x-direction, what are the x- and y- coordinates of the electron at t = 2.26 ns?
a piano wire with mass 3.00 g and length 80.0 cm is stretched with a tension of 25.0 n. a wave with frequency 120.0 hz
A simple circuit is set up that only consists of a 12 V battery connected to a light bulb with a resistance of 4 Ohms. What current flows through the light bulb
a diver springs upward from a board that is three meters above the water. at the instant she contacts the water her
Intelligent beings in a distant galaxy send a signal to earth in the form of an electromagnetic wave. What is the speed vrel of the galaxy relative to the earth
31g of copper pellets are removed from 300c oven and immediately dropped into 100ml of water at a 25c in an insulated
calculate a characteristic reynolds number for an aircraft cruising at 1000kmhr. make any assumptions necessary and
A proton moves perpendicular to a uniform magnetic field at a speed of 1.40 107 m/s and experiences an acceleration of 2.60 1013 m/s2 in the positive x-direction when its velocity is in the positive z-direction. Determine the magnitude and direction ..
Light of wavelength 60nm illuminates a hydrogen atom in an excited state. What energy level was the electron in initially
During each cycle, a refrigerator ejects 680 kJ of energy to a high-temperature reservoir, and takes in 600 kJ of energy from a low-temperature reservoir. Determine the work done on the refrigerant in each cycle. Determine the coefficient of performa..
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, what is the magnitude of the vertical component of force produced by the wall
A baseball player runs 27.4meters from the batter's box to first base,overruns first base by 3.0 meters,and then returns to first base. Compared to total distance traveled by the player,the magnitude of the players total displacement from the batt..
A 2.3 kg box, starting from rest, is pushed up a ramp by a 10 N force parallel to the ramp. The ramp is 2.0 m long and tilted at 17 degrees. How much work does the force do on the system
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