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Question1
Two metal balls A and B of negligible radius are floating at rest on Space Station Freedom between two metal bulkheads, connected by a taut non conducting thread of length 2.00 m. Ball a carries charge q and ball B carries 2q. Each ball is 1.00 m away from a bulkhead. (a) If the tension in the string is 2.50 N, what is magnitude of q?
Question2
Let vector B = 6.00 m at 60.0°. Let vector C have the similar magnitude as vector A and a direction angle better than that of vector A by 20.0°. Let vector A ·vector B = 24.0 m2 and vector B ·vector C = 39.0 m2. Find out vector A (find the magnitude and the angle)
A transmitter is operating at 4.00 kW of power. what is the average intensity of the signal 8.00 km from the transmitter
A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are 4.00 m to the north, 2.00 m northeast, and 0.90 m at 35.0° west of south. begining at the same initial point, an expert golfer could ma..
Regarding the Earth and a cloud layer 700 m above the Earth as the "plates" of a capacitor, What is the maximum charge the cloud can hold
A meterstick is moving by an observer in a diretion parallel to its length. what is the measured length in the reference frame of the observer
What is least value for which stick remain in equilibrium
A man standing on the ground throws a pebble with an initial veloctiy of 14m/s at an angle of 70 degrees above the horizontal, How high above the ground is the window
A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel
A rural power line carries 1.7 A rms at 4700 V. A step down transformer reduces this to 235 V rms to supply a house. Find the turns ratio of the transformer
A windmill has an initial angular momentum of 8270 kg · m2/s. The wind picks up, and 5.81 s later the windmill's angular momentum is 9310 kg · m2/s
Assume that light of wavelength 550 nm is being observed. Also suppose that diffraction effects, rather than atmospheric turbulence, limit the resolving power of the telescope. Find the greatest distance that these stars might be from the earth.
A 75.0 kg man stands on a bathroom scale in an elevator that accelerates upwards from rest to 30.0 m/s in 2.00 s. Calculate the scale reading compared with his weight
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 570nm
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