A Van de Graff generator can kill a person. a) True b) False
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A: Electrostatic.
A Van de Graff generator can kill a person.
a) True
b) False
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- A bare helium nucleus has two positive charges and a mass of 6.64 107 -27 (a) Calculate its kinetic energy in joules at 2% of the speed of light. KE = (b) What is this in electron volts? KE = ✔ev (c) Assume that the nucleus starts from rest and accelerates through a potential difference V, what quantity is conserved? O A. Mechanical Energy B. Kinetic Energy C. Potential Energy D. None of those quanitites are conserved kg. (d) What voltage would be needed to obtain this energy? V = ✓ VThe distance, r, between the proton and electron in the hydrogen atom is about 10-10 m. Determine the value of the kinetic energy of the electron. Provide your answer in electron-volts (eV).If a Helium nucleus moves in the direction of an electric field generated by a stationary positive source charge, … a) the course of action is non-spontaneous; work is required. b) the strength of electric field is increasing from the source charge. c) the force acting on the Helium nucleus is increasing. d) the electric potential energy is decreasing. 10. Particle 1 and Particle 2 emerge into a mass spectrograph emerge with identical velocity. If the radius of curvature of particle 1 is larger than the radius of curvature for particle 2, then … a) particle 1 is of greater mass than particle 2 b) particle 1 has a smaller charge than particle 2 c) particle 1 has a larger mass/charge ratio than particle 2 d) particle 1 has a larger charge/mass ratio than particle 2 e) nothing can be concluded.
- 4. What is the magnitude of the electrical force between two uranium nuclei placed a distance of 4.74 x 10^-12 m apart from one another? 0.148 N 0.061 N 0.087 N 0.122 NThe chain seen dangling from the rear of a gasoline truck is to let excess charges on the truck to be grounded.1 cm 0 cm 1 Force on q₁ by q2 = 319.557 N 2 -10 3 Charge 1 -4 μC 0 9₁ 4 Force on q₂ by 91 = 319.557 N 10 5 -10 6 92 7 Charge 2 8 μC 0 °i. 8 10 9 10 Force Values Scientific Notation
- 2- Lightning occurs when there is a flow of electric charge (principally electrons) between the ground and a thundercloud. The maximum rate of charge flow in a lightning bolt is about 20 000 C/s. If this lasts for 100 us, how much charge flows between the ground and the cloud in this time? a) 2 C b) 20 000 C C) 1 C d) 100 μC e) 20 C Boş bırak2https://phet.colorado.edu/sims/html/coulombs-law/latest/coulombs-law_en.html visit the link to solve the questions.
- An object with an imbalance of electrons and neutrons is electrically charged. True FalseDescribe your approach to determining the distance between the electron and proton in an atom if the potential energy U of the electron is known to be 14 eV. а. Use the law of conservation of energy. b. Use Coulomb's law. С. Use the definition of electrostatic potential energy U of one point charge q at position r in the presence of an electric potential. d. Use Newton's second law.Is there a difference between the speed at which the charged particles move and the speed at which electricity flows? Explain.