3. An amoeba may have 1.0 x1016 protons and a net charge of +0.30 pC (1 pC = 10-12 C). A. How many electrons is this amoeba missing? B. Protons and electrons tend to pair up (because of Coloumb's Law). However, some protons are missing electrons here. What fraction of all the protons are missing electrons?

3. An amoeba may have 1.0 x1016 protons and a net charge of +0.30 pC (1 pC = 10-12 C). A. How many electrons is this amoeba missing? B. Protons and electrons tend to pair up (because of Coloumb's Law). However, some protons are missing electrons here. What fraction of all the protons are missing electrons?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 6PE: An amoeba has 1.001016protons and a net charge of 0.300 pC. (a) How many fewer electrons are there...

See similar textbooks

Similar questions

(a) Two point charges totaling 8.00 C exert a repulsive force of 0.150 N on one another when separated by 0.500 m. What is the charge on each? (b) What is the charge on each if the force is attractive?
There are very large numbers of charged particles in most objects. Why, then, don't most objects exhibit static electricity?
The fundamental charge is e = 1.60 1019 C. Identify whether each of the following statements is true or false. (a) Its possible to transfer electric charge to an object so that its net electric charge is 7.5 times the fundamental electric charge, e. (b) All protons have a charge of +e. (c) Electrons in a conductor have a charge of e while electrons in an insulator have no charge.
The fundamental charge is e = 1.60 1019 C. Identify whether each of the following statements is true or false. (a) Its possible to transfer electric charge to an object so that its net electric charge is 7.5 times the fundamental electric charge, e. (b) All protons have a charge of +e. (c) Electrons in a conductor have a charge of e while electrons in an insulator have no charge.
1. Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) How many electrons are needed to form a charge of −9.10 nC? electrons (b) How many electrons must be removed from a neutral object to leave a net charge of 0.520 µC? electrons 2. What net charge would you place on a 412 g piece of sulfur if you put an extra electron on 1 in 1012 of its atoms? (Sulfur has an atomic mass of 32.1.) 4. What is the repulsive force between two pith balls that are 10.0 cm apart and have equal charges of −39.0 nC?-------N 6.How far apart (in mm) must two point charges of 65.0 nC (typical of static electricity) be to have a force of 5.50 N between them? 7. a.What is the direction of this force (away from or toward the +6 µC charge)? away from the +6 µC chargetoward the +6 µC charge ---------mm A test charge of +9 µC is placed halfway between a charge of +6 µC and another of +7 µC separated by 17 cm. (b) What is the magnitude of the force (in N)…
24. (a) Two point charges totaling 8.00µC exert a repulsive force of 0.150 N on one another when separated by 0.500 m. What is the charge on each? (b) What is the charge on each if the force is attractive?
10- How many electrons does a plastic rod carrying a negative charge of 1.0 uC have gained from the outside (extra)? (e = 1.6 x 10^-19C)
1. A tiny ball weighs 0.0055 kg and carries a charge of +3.25 x 10-6 C. What electric field (magnitude and direction) is needed for the ball to remain suspended in air? 2. Calculate the magnitude and direction of the electric field 0.50 m from a +6.25 x 10-9 C point charge.
1.Find to three significant digits the charge and the mass of an ionized hydrogen atom? 2.Explain the following concepts in full including their mathematical definitions:(a) Electric force (b) Electric field. 3.(a)Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0g. Silver has 47 electrons per atom, and its molar mass is 107.87g/mol.(b) Electrons are added to the pin until the net negative charge is 1.00 micro Coulomb. How many electrons are added for every 10^9 electrons already present?
Adding a proton to a nucleus The nucleus of an atom is positively charged because it consists of positively charged protons and uncharged neutrons. To bring a free proton toward a nucleus, a repulsive force F(r) = kqQ/r2 must be overcome, where q = 1.6 × 10-19 C (coulombs) is the charge on the proton, k = 9 × 109 N · m2/C2, Q is the charge on the nucleus, and r is the distance between the center of the nucleus and the proton. Find the work required to bring a free proton (assumed to be a point mass) from a large distance (r → ∞) to the edge of a nucleus that has a charge Q = 50q and a radius of 6 × 10-11 m.
What net charge would you place on a 733 g piece of sulfur if you put an extra electron on 1 in 1012 of its atoms? (Sulfur has an atomic mass of 32.1.) Answer: ________________ C
3) The field just outside a 5.30-cm-radius metal ball is 500 N/C and points toward the ball. What charge resides on the ball?(Q=?)