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Three charges are positioned on a line. Q1= -2uC, Q2= +5uC, Q3= +3uC. The distance between Q1 and Q2 is a=0.25m. The distance between Q2 and Q3 is b=0.5m.
a) find the magnitude of the electric force acting on the charge Q2.
b) Find the direction of the electric force acting on the charge Q2.
According to the shop manual, when drilling a 12.1-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1400 rev/min. find the maximum linear speed of any part of the bit
Two 9cm diameter charged disks face each other, 25cm apart. Both disks are charged to - 80 nC.
Two conductors are joined by a long copper wire. Thus A) each conductor must be at the same potential. B) no free charge can be present on either conductor. C) each conductor carries the same free charge.
One skater throws a .3 kg ball at 5 m/s to his friend, who catches it and throws it back at 5 m/s. When the first skater has caught the returned ball, Illustrate what is the velocity of each of the two skaters?
A soccer ball is kicked with an initial horizontal velocity of 18 m/s and an initial vertical velocity of 13 m/s, What is the speed of the ball 0.8 seconds after it was kicked, What is the maximum height the ball goes above the ground
A 14 liter tank of helium is at a pressure of 164 kPa at a temperature of 0 C, What is the speed of the helium atoms in the tank at this new volume, How many moles of helium are there in the tank
A 1210-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end.
A ball is thrown straight upward with an initial speed of 25 m/s. how high does the ball go before falling back down
A police radar gun emits an electromagnetic wave at a frequency of fs = 1.08×1013 Hz. What is the speed of the oncoming car (v)
The length of a moving spaceship is 29.4 m according to an astronaut on the spaceship. compute the speed of the spaceship
The gauge pressure at the bottom of a pint of beer, at a depth of 14.6 cm, is 1450 Pa. What is the density of the beer
Two converging lenses are placed 88.0 cm apart. An object is placed 1.100 m to the left of the first lens, which has a focal length of 27.0 cm. What is the focal length of the second lens
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