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The electric field everywhere on the surface of a charged sphere ofradius 0.300 m has a magnitudeof 520 N/C and points radiallyoutward from the center of the sphere.
a) What is the net charge on the sphere?
A 1.55--tall fisherman stands at the edge of a lake, being watched by a suspicious trout who is 3.50 from the fisherman in the horizontal direction, At what angle from the vertical does the fish see the top of the fisherman's head
A metal wire 1.0mm in diameter and 2.5m long hangs vertically with a 4.8-kg object suspended from it. what is the value of Young's modulus for the metal
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
A 1025 kg car carrying four 78kg people travels over a rough "washboard" dirt road with corrugations 4m apart which causes the car to bounce on its spring suspension.
A gallon of gasoline contains about 1.3x10^8 joules of energy. A 2000-kg car traveling 20 m/s skids to a stop. Estimate how much gasoline it will take to bring the car back to the original speed
An electronic device dissipating 30 W has a mass of 20g and a specific heat of 850 J/kgoC. The device is lightly used, and it is on for 5 min and then off for several hours, throughout which it cools to the ambient temperature of 25 o C.
A charge of 3.0 micro coulombs and a second charge are initially far apart. If it takes 29 J of work to bring them to a final configuration in which the 3.0 micro coulombs is at x = 1.0 mm,
question1as at rest two trains has sirens that release a frequency of 300 hz. the trains travel toward one another and
A hammer strikes one end of a thick steel rail of a length 8.50 m. A microphone located at the opposite end of the tail detects two pulses of sound, Find the separation in time between the arrivals of the two pulses
A cannonball is shot (from ground level) with an initial horizontal velocity of 34.0 m/s and an initial vertical velocity of 25.0 m/s. find the maximum height the cannonball goes above the ground
After sliding across the horizontal surface, the block of mass M collides elastically with a vertical rod of length R and mass MR that is pivoted at the upper end. What is the maximum displacement angle
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
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