Find the speed of an electron with a kinetic energy 2.60×10^{−13} J .
Express your answer using two significant figures.
What's the speed of a proton with the same kinetic energy?
Express your answer using two significant figures.
Find the speed of an electron with a kinetic energy 2.60×10−13 J . Express your answer...
What is the speed of an electron with kinetic energy 700 eV ? Part A Express your answer to two significant figures and include the appropriate units. Part B What is the speed of an electron with kinetic energy 0.54 keV ?
Find the kinetic energy of an electron whose de Broglie wavelength is 1.9 A Express your answer using two significant figures. 囲? K1.05. 10-14 Previous Answers Request Answer Submit X Incorrect; Try Again; 19 attempts remaining
A- What is the wavelength of an electron of energy 10 eV ? Express your answer using two significant figures. λ = ? M B- What is the wavelength of an electron of energy 170 eV ? Express your answer using two significant figures. λ = ? m C- What is the wavelength of an electron of energy 3.0 keV ? Express your answer using two significant figures. λ = ? M
Find the speed of an electron that has a kinetic energy of 2.07 eV. 1 eV= 1.602 x 10^-19 J. Answer in units of m/s. Calculate the speed of a proton with a kinetic energy of 2.07 eV. Answer in units of m/s. A parallel-plate capacitor has a capacitance Co. A second parallel-plate capacitor has plates with twice the area and twice the separation. What is the capacitance of the second capacitor? Calculate the energy stored in a 27.3 uF...
Find the speed of a particle whose relativistic kinetic energy is 40 % greater than the Newtonian value for the same speed. Express your answer using two significant figures.
A certain moving electron has a kinetic energy of 1.01 × 10−19 J. A. ) Calculate the speed necessary for the electron to have this energy. The mass of an electron is 9.109 × 10−31 kg. Answer in units of m/s. B.) Calculate the speed of a proton having a kinetic energy of 1.01 × 10−19 J and a mass of 1.673 × 10−27 kg. Answer in units of m/s.
An electron travels at 0.494c. 1. Calculate its Einsteinian momentum. (Express your answer to three significant figures.) ______________ x 10^-22 kg m/s 2. Calculate its Einsteinian kinetic energy. (Express your answer to three significant figures.) _____________ x 10^-15 J 3. Calculate its rest energy. (Express your answer to three significant figures.) _____________ x 10^-14 J 4. Calculate the total energy of the electron. (Express your answer to three significant figures.) ____________ x 10^-14 J
10,30 An electric fan spinning with an angular speed of 10 rad/s has a kinetic energy of 4.7 J . PART A What is the moment of inertia of the fan? Express your answer using two significant figures.
The circular blade of a power saw has kinetic energy 55 J . Part A If its rotation rate drops to half, what's its new kinetic energy? Express your answer to two significant figures and include the appropriate units.
Part A What is the wavelength of an electron of energy 25eV ? Express your answer to two significant figures and include the appropriate units. ?1 = SubmitMy AnswersGive Up Part B What is the wavelength of an electron of energy 180eV ? Express your answer to two significant figures and include the appropriate units. ?2 = SubmitMy AnswersGive Up Part C What is the wavelength of an electron of energy 1.0keV ? Express your answer to two significant figures...