Physics

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What must you do to get away from the harmful effects of radioactivity? A) live at the North or ... Started by neverstopbelieb	1 Replies 62 Views	Jul 29, 2018 by aprice35067
Electric forces within an atomic nucleus tend to A) hold it together. B) push it apart. C) ... Started by Destiiny22	1 Replies 60 Views	Jul 29, 2018 by mmj22343
The helium in a child's balloon is composed of A) former alpha-particle. B) former beta ... Started by moongchi	1 Replies 34 Views	Jul 29, 2018 by trog
The radioactive half-life of a material is the time for A) half of an original quantity of the ... Started by lak	3 Replies 130 Views	Jul 29, 2018 by k2629
In a smoke detector americium (A = 95) transmutes to neptunium (A = 93) by A) beta emission. B) ... Started by james0929	1 Replies 76 Views	Jul 29, 2018 by marict
A person on a sled coasts down a hill and then goes over a slight rise with speed 2.7 m/s. The top ... Started by SO00	1 Replies 452 Views	Jul 29, 2018 by Natalie4ever
When an element undergoes nuclear transmutation, the result is a completely different A) isotope ... Started by michelleunicorn	1 Replies 68 Views	Jul 29, 2018 by shayla
Some charged particles in a bubble chamber are seen to move in spirals due to A) decreasing ... Started by swpotter12	3 Replies 64 Views	Jul 29, 2018 by jamesnevil303
For 1 gram of radioactive material that has a half-life of one year, after 4 years the original ... Started by HudsonKB16	1 Replies 83 Views	Jul 29, 2018 by diesoon
There is an induced emf in a wire that is moving parallel to a magnetic field if the wire is moving ... Started by yoooooman	1 Replies 75 Views	Jul 29, 2018 by dyrone
Nuclear stability is related to the balance between A) attracting and repelling forces in the ... Started by Chelseaamend	1 Replies 38 Views	Jul 29, 2018 by jasonq
For an isotope with a half-life of one day, at the end of three days the amount that remains is ... Started by arivle123	3 Replies 75 Views	Jul 29, 2018 by Jane
When comparing two gases at the same temperature, the gas with a higher molecular weight has more ... Started by sammy	1 Replies 38 Views	Jul 29, 2018 by patma1981
A certain radioactive isotope placed near a Geiger counter registers 160 counts per minute. Eight ... Started by rl	1 Replies 100 Views	Jul 29, 2018 by meow1234
The decay constant of radon is 0.181 day s-1. A sample of radon contains 6.00 108 radon atoms. How ... Started by ap345	1 Replies 311 Views	Jul 29, 2018 by heinisk01
The operation of a cloud chamber relies on A) magnetization. B) evaporation. C) acceleration. ... Started by ec501234	3 Replies 51 Views	Jul 29, 2018 by tkempin
A Geiger counter placed 1 meter from a point source of radiation registers 100 counts per minute. If ... Started by nummyann	1 Replies 61 Views	Jul 29, 2018 by Joc
As a tile falls from the roof of a building to the ground its momentum is conserved. A) True B) ... Started by tatyanajohnson	1 Replies 75 Views	Jul 29, 2018 by fur
When radium (A = 88) emits an alpha particle, the resulting nucleus has atomic number A) 86. B) ... Started by captainjonesify	1 Replies 115 Views	Jul 29, 2018 by frankwu0507
When thorium (A = 90) emits a beta particle, the resulting nucleus has atomic number A) 88. B) ... Started by DyllonKazuo	3 Replies 128 Views	Jul 29, 2018 by k2629
When a nucleus emits a positron, its atomic number A) increases by 1. B) decreases by 1. C) ... Started by jparksx	1 Replies 79 Views	Jul 29, 2018 by smrtceo
When U-239 emits a beta particle, the resulting nucleus has A) 90 protons. B) 91 protons. C) 92 ... Started by RODY.ELKHALIL	1 Replies 51 Views	Jul 29, 2018 by kjohnson
What is the gravitational force between two 7.00-kg balls, when they are 35.0 cm apart? G = 6.67 x ... Started by APUS57	1 Replies 43 Views	Jul 29, 2018 by Moriaki
A 50.0-kg block is being pulled up a 15.0 slope by a force of 300 N which is directed 30.0 above the ... Started by silviawilliams41	3 Replies 79 Views	Jul 29, 2018 by beccamahon
When a nucleus emits a beta particle, its atomic number A) increases by 1. B) decreases by 1. ... Started by fbq8i	1 Replies 125 Views	Jul 29, 2018 by wergv