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?
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- 2. A Nitrogen atom with a -3 charge has how many electrons? What is the name of this kind of charged atom? 3. Benzene is a compound with a chemical formula C6H6. a. How many elements are present in Benzene? b. List the elements present AND state how many atoms of each are in each mo C. How many total atoms are in 1 molecule of Benzene? sland Muno, SG30331. Using your understanding of three subatomic particles, what is an electric charge? 2. With respect to the presence of charged particles, how does a body become a. Positively charged? b. Negatively charged? 3. Let us try to compute the charge of the following ions. a. Ion with a charge of +3 b. Ion with a charge of -2 c. Ion with a charge of +5 4. Demonstrate charging by rubbing. You need a ballpen and a tiny piece of paper. Rub your ball pen 15 times in your skin or hair. Then mobe the ballpen closer to the tiny piece of paper. Try it again then write your observation.3. How many coulombs of charge are on the electrons in a nickel coin? Follow this method to find the answer. a. Find the number of atoms in a nickel coin. A nickel coin has a mass of about 5 g. Each mole (6.02 × 1023 atoms) has a mass of about 58 g. b. Find the number of electrons in the coin. Each nickel atom has 28 electrons. C. Find how many coulombs of charge are on the electrons.
- 42. One gram of copper has 9.48 x 104 atoms, and each copper atom has 29 electrons. a. How many electrons are contained in 1.00g of copper? b. What is the total charge of these electrons?9. Shown in the picture is a representation of an atom. Particle A is neutral, particle B is positively charged and particle C is negatively charged. Which of these correctly names each particle? a. A = electron, B = proton, C = neutron b. A = proton, B = neutron, C = electron c. A = neutron, B = proton, C = electron d. A = electron, B = neutron, C = proton e. A = proton, B = electron, C = neutron1. A negatively charged Iron ball A is placed in contact with a neutrally charged iron ball B. If Iron ball A transferred 5x10^5 of electrons to Iron ball B, what will be the net charge on Iron ball B?
- The combined charge of all the electrons in a dime is hundreds of thousands of coulombs. Because like charges repel, what keeps the dime from exploding? a. The dime has an equal number of protons, with positive charge. b.The dime has more protons than electrons, with positive charge. c. The dime has fewer protons than electrons, with positive charge. d. The dime is polarized, with electrons on one side and protons on the other side.1.How many coulombs of positive charge are there in 1.20 kg of plutonium, given that its atomic mass is 244 and each plutonium atom has 94 protons? ___c 2.Red blood cells can often be charged. Consider two red blood cells with the following charges: −22.2 pC and +53.8 pC. The red blood cells are 4.29 cm apart. (1 pC = 1 ✕ 10−12 C.) (a) What is the magnitude of the force on each red blood cell?____________ N(b) The red blood cells come into contact with each other and then are separated by 4.29 cm. What magnitude of force does each of the red blood cells now experience?____________ N1. An iron atom has 26 protons, 30 neutrons and 26 electrons. a. What is the total charge of its nucleus? b. What is the total charge of its electrons? c. What is the magnitude of the electric force of attraction between an iron nucleus and its innermost electron id the distance between them is 1.5 x 1012?
- 1. A small charge (q=6 µC) is found in a uniform E-field (E=2.9 N/C). Determine the force on the charge. 2. Find the electric field acting on a 2.0 C charge if an electrostatic force of 10500 N acts on the particle. 3. Common static electricity involves charges ranging from nanocoulombs to microcoulombs.a. How many electrons are needed to form a charge of –2.00 nC?b. How many electrons must be removed from a neutral object to leave a net charge of 0.500 µC?3. Three-point charges are in an x-y plane. Charge 1 has a charge of 11.2 mC, charge 2 has a charge of -19.8 µC, charge 3 has a charge -15.4mC. Charge 2 is at the origin, charge 1 is 9.4 mm to the left of charge 2, and charge 3 is 6.8 mm along the +x-axis and 3.5 mm along the y-axis. a. Determine the individual force applied by charge 1 and charge 3 onto charge 2. b. Illustrate a free-body diagram of force applied by charge 1 and charge 3 onto charge 2, then determine the net force.1. How many electrons make up a charge of 56 nC (nanoCoulomb)? If these are made of copper atoms, how many atoms would there be? 2. What is the magnitude of the electric force of attraction between uranium nucleus and its innermost electron if the distance between them is 8.9x10 pm (picometers)? Express your final answer in scientific notation. 3. A hypothetical plane of equilateral hexagon has six charged particles on each of its vertices. If Q1 has a charge of 7nC (nanoCoulomb) and there is an increasing amount of charge per each vertex by a factor of seven up to Q6, what would be the net force experienced by Q1? Assume that the charge sign alternates from positive to negative, starting on Q1. *these 3 questions have no correlations to one another.