Physics

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A typical automobile consumes about 70 kW of power from the gas tank. How many 100-watt light bulbs ... Started by kodithompson	1 Replies 93 Views	Jul 29, 2018 by bfulkerson77
When a fuel cell operates, the energy transformation within the cell itself is A) thermal energy ... Started by s.tung	1 Replies 81 Views	Jul 29, 2018 by akpaschal
A race car traveling at a constant speed of 50 m/s drives around a circular track that is 500 m in ... Started by dollx	1 Replies 210 Views	Jul 29, 2018 by Sarahjh
Which of the 4 fundamental forces binds the nucleus together, and which binds the atom the electron ... Started by drink	3 Replies 290 Views	Jul 29, 2018 by yahahah24021
A solid nonconducting sphere of radius R carries a charge Q distributed uniformly throughout its ... Started by sc00by25	1 Replies 164 Views	Jul 29, 2018 by Dominic
A spherical, non-conducting shell of inner radius r1 = 10 cm and outer radius r2 = 15 cm carries a ... Started by mynx	1 Replies 95 Views	Jul 29, 2018 by BUTTHOL369
The fuel that goes into a hybrid drive vehicle is A) gasoline. B) natural gas. C) ... Started by jman1234	1 Replies 69 Views	Jul 29, 2018 by ririgirl15
A non-conducting sphere of radius R = 7.0 cm carries a charge Q = 4.0 mC distributed uniformly ... Started by tth	3 Replies 1,403 Views	Jul 29, 2018 by k2629
Is a fuel-cell vehicle properly described as a heat engine? A) Yes, because it uses thermal ... Started by panfilo	1 Replies 90 Views	Jul 29, 2018 by b614102004
In the product A B C, A has 5 significant figures, B has 2 significant figures, and C has 3 ... Started by Medesa	1 Replies 169 Views	Jul 29, 2018 by beccamahon
An electric generating plant produces 400 MW of electric power while operating at 40 efficiency. The ... Started by Destiiny22	1 Replies 115 Views	Jul 29, 2018 by mohan
Reasoning from the fact that it is difficult to pull a nucleus apart, we can conclude that the ... Started by danielfitts88	3 Replies 85 Views	Jul 29, 2018 by 31809pancho
A reasonable estimate for the mass of a typical female college student is A) 20 kg. B) 50 kg. ... Started by urbanoutfitters	1 Replies 99 Views	Jul 29, 2018 by mcomstock09
The distinction between an element and an isotope is A) an element has a specific number of both ... Started by olgavictoria	1 Replies 123 Views	Jul 29, 2018 by xiazhe
A megawatt is A) 1,000,000 watts. B) 1,000,000,000 watts. C) 1000 watts. D) 100 watts. E) ... Started by strangeaffliction	1 Replies 196 Views	Jul 29, 2018 by macagn
A reasonable estimate for the height of an ordinary adult male is A) 50 cm. B) 70 cm. C) 200 ... Started by Brittanyd9008	3 Replies 141 Views	Jul 29, 2018 by Dunkey
The universe is only seconds old, a million trillion seconds in fact. In powers of 10, this number ... Started by xclash	1 Replies 32 Views	Jul 29, 2018 by isabelt_18
In the operation of a steam-electric generating plant, the thermal energy input occurs A) in the ... Started by Charlie	1 Replies 94 Views	Jul 29, 2018 by reelove4eva
A 0.50-kg toy is attached to the end of a 1.0-m very light string. The toy is whirled in a ... Started by lbcchick	1 Replies 71 Views	Jul 29, 2018 by hollysheppard095
In the operation of a steam-electric generating plant, the exhaust, or thermal energy output, occurs ... Started by ts19998	3 Replies 174 Views	Jul 29, 2018 by recede
The diameter of an atomic nucleus is about a hundredth of a trillionth of a meter. In powers of 10, ... Started by jilianpiloj	1 Replies 57 Views	Jul 29, 2018 by huda
The discoverer of radium was A) Max Planck. B) Enrico Fermi. C) J. Robert Oppenheimer. D) ... Started by olgavictoria	1 Replies 76 Views	Jul 29, 2018 by rosiehomeworddo
Which is heaviest? A) oxygen atom B) hydrogen atom C) electron D) proton E) water ... Started by Sportsfan2111	1 Replies 136 Views	Jul 29, 2018 by Liamb2179
Large curved cooling towers can often be seen at A) steam-electric power plants. B) nuclear ... Started by jayhills49	3 Replies 216 Views	Jul 29, 2018 by shaikhs
Nuclear and fossil fuel generating plants differ in their need for a A) smoke-stack. B) ... Started by jace	1 Replies 79 Views	Jul 29, 2018 by kjohnson