charge on 1 electron = -1.6*10^-19 C
charge on the piece of dust = -2.1*10^-6
number of excess electrons = (-2.1*10^-6 / -1.6*10^-19)
= 1.3125*10^13
A small piece of dust has a net negative charge of -2.1 micro coulombs. How many...
A piece of plastic has a net charge of +2.00 μC. How many fewer electrons than protons does this piece of plastic have? (e = 1.60 × 10-19 C)
A charge of +1.6 micro-coulombs lies on a horizontal surface. It has a mass of 3 kg and the coefficient of static friction between it and the surface is 1.68. Another charge of -3.1 micro-coulombs lies on the horizontal surface 11 cm to the right of the charge. A third charge which is negative is located 17 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...
A charge of +1.6 micro-coulombs lies on a horizontal surface. It has a mass of 3 kg and the coefficient of static friction between it and the surface is 1.67. Another charge of -2.5 micro-coulombs lies on the horizontal surface 6 cm to the right of the charge. A third charge which is negative is located 12 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...
A charge of +1.6 micro-coulombs lies on a horizontal surface. It has a mass of 3 kg and the coefficient of static friction between it and the surface is 1.77. Another charge of -3.5 micro-coulombs lies on the horizontal surface 7 cm to the right of the charge. A third charge which is negative is located 18 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...
A charge of +1.5 micro-coulombs lies on a horizontal surface. It has a mass of 2 kg and the coefficient of static friction between it and the surface is 1.55. Another charge of -3.5 micro-coulombs lies on the horizontal surface 9 cm to the right of the charge. A third charge which is negative is located 18 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...
A charge of +1.6 micro-coulombs lies on a horizontal surface. It has a mass of 2 kg and the coefficient of static friction between it and the surface is 1.75. Another charge of -3.3 micro-coulombs lies on the horizontal surface 11 cm to the right of the charge. A third charge which is negative is located 10 cm above the positive charge on the surface. What is the smallest magnitude this charge needs in order for the positive charge to...
A charge of +1.7 micro-coulombs lies on a horizontal surface. It has a mass of 4 kg and the coefficient of static friction between it and the surface is 1.78. Another charge of -2.2 micro-coulombs lies on the horizontal surface 11 cm to the right of the charge. A third charge which is negative is located 16 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...
A charge of +1.6 micro-coulombs lies on a horizontal surface. It has a mass of 3 kg and the coefficient of static friction between it and the surface is 1.77. Another charge of -3.5 micro-coulombs lies on the horizontal surface 7 cm to the right of the charge. A third charge which is negative is located 18 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...
A charge of +1.7 micro-coulombs lies on a horizontal surface. It has a mass of 3 kg and the coefficient of static friction between it and the surface is 1.57. Another charge of -3.1 micro-coulombs lies on the horizontal surface 9 cm to the right of the charge. A third charge which is negative is located 19 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...
A charge of +1.9 micro-coulombs lies on a horizontal surface. It has a mass of 3 kg and the coefficient of static friction between it and the surface is 1.78. Another charge of -2.3 micro-coulombs lies on the horizontal surface 9 cm to the right of the charge. A third charge which is negative is located 19 cm above the positive charge on the surface. What is the smallest magnitude this charge needs to be in order for the positive...