Calculate the momentum of a 0.5-MeV electron O A. 0.99 MeV/c O B. 1.422 MeV/c O C. 1.11 MeV/c O D. 0.5 MeV/c O E. 1.511 MeV/c
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- A -0.02C object is placed into a 20V potential. How much energy does it have? -0.8 J O 0.6 J 0.4 J O -0.4 J O -0.6 J 0.8 JThe electronic structure of atoms and molecules may be investigated using photoelectron spectroscopy. An electron in a photoelectron spectrometer is accelerated from rest by a uniform electric field to a speed of 420 km s−1 in 10 µs. Determine the kinetic energy of the electron? a. 8.0 x 10-20 N.m b. 1.6 x 10-25 N.m c. 3.8 x 10-25 N.m d. 4..0 x 10-2 N.mWhich should I choose and why
- In a Millikan experiment, two horizontal parallel plates are 3.5 cm apart. A sphere A whose mass is equal to 4.2 x 10^-17 kg remains in suspension, while the potential difference between the plates is 5.00 V and the upper plate is positive.a. Determine the charge on the sphere.b. What is the magnitude of the sphere's excess or deficiency of electrons?A 83.0 kg athlete running a "4-minute mile" (i.e. 4.00 min/mile) _____ nm an electron (me = 9.10939 1028 g) moving at 3.90 106 m/s in an electron microscope _____ nm.What is the magnitude and direction of electric field for the capacitor below? 150 V OV 3.0 mm 1 I 1 1 1.0 mm 1.0 mm k 1.0 mm