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A distance away from a uniformly charged spherical object, the magnitude of the electric field is 575V/m and the electric potential is 3.50kV. (a) What is the distance to the center of the object? (b) What is the magnitude of the charge?
How long does it take an automobile travelling 56.50 km/h to become even with a car that is travelling in another lane at 36.50 km/h if the cars' front bumpers are initially 148m apart.
A bartender slides a beer mug at 1.30 m/s towards a customer at the end of a frictionless bar that is 2.0m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar.
Charge Q = 10E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge.A) Find the potential difference VB - VA between the two points. B) Which point is at the higher potential? Type either "Poi..
Two people stand 3 m in front of large plane mirror and space 5m a part in dark room at what angle of incidence should one of them shine a flashlight on the mirror so that reflected beam directly strickes the other person.
Suppose that the net horizontal force is because of rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2. What is the coefficient of friction for the tire under low pressure.
An artillery shell is fired with a minimal velocity of 470m/s at 50o above the horizontal. To clear an avalanche, it explodes on a mountain side 38 s after firing.
Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string?
Find the maximum altitude reached by the rocket.Find its total time of flight.
What is the distance Delta y_max-min between the second maximum of laser 1 and the third minimum of laser 2, on the same side of central maximum.
One sphere is negatively charged, with net charge -2.25 mu C, and other sphere is positively charged, with net charge 4.00 mu C. The charge is uniformly distributed within the volume of each sphere.
what is the smallest value d can have before the string breaks?
A spacecraft receding from he earth at 0.97c transmits data at the rate of 1*104pulses/s. At what rate are they received.
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