Coulomb's Law: The zirconium nucleus contains 40 protons, and an electron is 1.0 nm from the nucleus. What is the electric force on the electron due to the nucleus? ( e = 1.60 × 10-19 C, k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 2.9 nN
B. 1000 C
C. 3.7 nN
D. 6.8 nN
E. 9.2 nN
Answer: E
You might also like to view...
Electrical forces between charges are strongest when the charges are
a. far apart b. close together c. the electrical force is constant everywhere
A river 100 m wide flows 1 m/s due south. A boat that travels 1 m/s relative to the water is pointed due east as it crosses from the west bank. Relative to its starting point, the boat travels
A) nowhere. B) 100 m. C) 141 m. D) 200 m. E) more than 200 m.
Convection can occur
A) only in gases. B) only in solids. C) only in liquids. D) only in liquids and gases. E) in solids, liquids, and gases.
The approximate main-sequence lifetime of a star of spectral type O is ________
A) 300 million years B) 10 billion years C) 10,000 years D) 3 million years