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- An object has a charge of 35 nC. How many excess protons does it have?A proton is fired from very far away directly at a fixed particle with charge q = 1.28 1018 C. If the initial speed of the proton is 2.4 105 m/s, what is its distance of closest approach to the fixed particle? The mass of a proton is 1.67 1027 kg.Most workers in nanotechnology are actively monitored for excess static charge buildup. The human body acts like an insulator as one walks across a carpet, collecting -50 nC per step. What charge buildup will a worker in a manufacturing plant accumulate if she walks 25 steps. How many electrons are present in that amount of charge?
- (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 3.00 mC. How many electrons are added for every 109 electrons already present?Question 14 Save this response. The port charges in the figure below have the following values: gf = 20 µC, 92-30 pCq3= -2.0 µC Asume that charge is at the orgn and 3 les on the positive x-axis. Given that the distance d in the figure is 4.10 cm, find the magnitude and direction of the net estat fe exerted on the point charge 2 For the targe A1410 PC or AUTA particle of mass 42 g and charge 23 µC is released from rest whem it is 18 cm from a second particle of charge-29 µC. Determine the magnitude of the initial ac- celeration of the 42 g particle. Answer in units of m/s.
- Suppose a speck of dust in an electrostatic precipitator has 1.0000 X 1012 protons in it and has a net charge of –5.00 nC (a very large charge for a small speck). How many electrons does it have?Two coins lie 1.5m in a large vat of water. They carry identical charges. Approximately how large is the charge on each if a coin experiences a force of 2N and the dielectric constant of water is about 80?Assume a space faring penny is made entirely of copper and has a mass of 3.11 grams, and has acquired a net charge of -11.323 uC from Martian dust-storms. What fraction in billionths of the penny's electrons have been removed or added? A copper atom has 29 protons, atomic mass of 63.5g.
- Part D Compare the strength of the bonding force of the electron in hydrogen with the bonding force of the adenine-thymine molecules. Essay answers are limited to about 500 words (3800 characters maximum, including spaces). 3800 Character(s) remaining Submit Request AnswerTwo chloride ions and two sodium ions are in water, the "effective charge" on the chloride ions (CI) is -2.00 × 10-21 C and that of the sodium ions (Na) is +2.00 x 10-21 C. (The effective charge is a way to account for the partial shielding due to nearby water molecules.) Assume that all four ions are coplanar. 45.0% L. where a 0.280 nm, b=0.740 nm, and c= 0.670 nm. What is the direction of electric force on the chloride ion in the lower right-hand corner in the diagram? Enter the angle in degrees where positive indicates above the negative x-axis and negative indicates below the positive x-axis.How many electrons make up a charge of -50.0 μC ? Express your answer using three significant figures.