Suppose you want to make a scale model of a hydrogen atom. you choose, for the nucleus, a small ball bearing with a radius of 1.5 mm. the radius of the hydrogen atom is 0.529 ã 10â10 m and the radius of the nucleus is 1.2 ã 10â15 m. (a) what would be the radius (m) of the model? (b) suppose that now you want to make a scale model of the solar system using the same ball bearing as in part (a) to represent the sun. how far from it (mm) would you place a sphere representing the earth? (center to center distance .) (see the inside cover of your textbook for data.) (c) what would be the radius (mm) of the sphere representing the earth in part (b)?
Answers: 2
Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
Physics, 22.06.2019 15:40
How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9
Answers: 1
Physics, 23.06.2019 03:00
A75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high-efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75. taking the cost of electricity to be $0.12/kwh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. also, determine the simple payback period if the pu
Answers: 1
Physics, 23.06.2019 05:00
Awaiver with a period of 0.008 second has a frequency of a. 800hz. b. 80hz. c. 125hz. d. 12.5hz.
Answers: 1
Suppose you want to make a scale model of a hydrogen atom. you choose, for the nucleus, a small ball...
Social Studies, 26.08.2020 19:01
Biology, 26.08.2020 19:01
Mathematics, 26.08.2020 19:01
History, 26.08.2020 19:01
History, 26.08.2020 19:01
History, 26.08.2020 19:01
Biology, 26.08.2020 19:01
Mathematics, 26.08.2020 19:01
Mathematics, 26.08.2020 19:01
Mathematics, 26.08.2020 19:01