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.
A certain moving electron has a kinetic energy of 1.01 × 10−19 J. A. ) Calculate...
Question (part 1 of 2) A certain moving electron has a kinetic en- ergy of 1.00 × 10-19 J. Calculate the speed necessary for the elec- tron to have this energy. The mass of an electron is 9.109 x 10-31 kg Answer in units of m/s Your response Submit answer Question (part 2 of 2) Calculate the speed of a proton having a kinetic energy of 1.00 x 1019 J and a mass of 1.673 x 10-27 kg Answer in...
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...
An electron with a kinetic energy of 47.34 eV is incident on a square barrier with Ub = 56.43 eV and w = 2.000 nm. What is the probability that the electron tunnels through the barrier? (Use 6.626 ✕ 10−34 J · s for h, 9.109 ✕ 10−31 kg for the mass of an electron, and 1.60 ✕ 10−19 C for the charge of an electron.)
A)A proton is accelerated from rest through a potential difference of 25707 V. What is the kinetic energy of this proton after this acceleration? The mass of a proton is 1.673 × 10−27 kg and the elemental charge is 1.602 × 10−19 C. Answer in units of J. B) What is the speed of the proton after this acceleration? Answer in units of m/s.
An electron with kinetic energy 228 eV is moving in a horizontal direction. The electron moves into a region where there is a uniform vertical electric field which has magnitude 3990 N/C. Find the smallest magnitude of a magnetic field that will cause the electron to continue to move horizontally. (1eV=1.6^10^(-19)J;mass of the electron=9.11*10^(-31)kg)
Q) What is the kinetic energy, in joules, of a molecule of oxygen moving at a speed of 255 m/s(use the appropriate prefix to avoid exponential notation) a) The equation for kinetic energy is ½mv2, and is in units of joules. What are the component units for joules in terms of mass and velocity? kg m^2/s^2 b) From the previous part, we know that the mass needs to be in units of kg. What is the mass of an oxygen...
1) A 11.0-V battery is connected to a 4.40-μF capacitor. How much energy is stored in the capacitor? J 2) Calculate the speed (in m/s) of an electron and a proton with a kinetic energy of 1.10 electron volt (eV). (The electron and proton masses are me = 9.11 ✕ 10−31 kg and mp = 1.67 ✕ 10−27 kg. Boltzmann's constant is kB = 1.38 ✕ 10−23 J/K.) hint: Use the conversion 1 eV = 1.60 ✕ 10−19 J. (a) an electron? m/s...
a) If the position of an electron in a membrane is measured to an accuracy of 1.30 um, what is the electron's minimum uncertainty in velocity? Take the mass of an electron to be 9.11 x 10-31 kg. 44.38 m/s Show hint b) If the electron has this velocity, what is its kinetic energy? 5.6 · 10-9 Show hint a) What is y for a proton having an energy of 1.25 TeV, produced by the Fermilab accelerator? Take the mass...
10. An proton-antiproton pair is produced by a 2.10 x 103 MeV photon. What is the kinetic energy of the antiproton if the kinetic energy of the proton is 55.95 MeV? Use the following Joules-to-electron-Volts conversion leV = 1.602 x 10-19 J. The rest mass of a proton is 1.67 x 10-27 kg. * Blank MeV 4. What is the frequency of a photon that has the same momentum as a neutron moving with a speed of 1.60 x 10²...
In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a metal by a photon was the difference between the energy of a photon and a threshold energy value for the metal. If you were to perform a similar experiment with lead, which has a threshold energy of 6.81 × 10⁻¹⁹ J, and ultraviolet light of wavelength 38.5 nm, what would be the speed (v) of the dislodged electron? (K.E. = 1/2mv². The mass of the electron...