Physics

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The oldest hominid so far discovered dates back to A) 540 million years ago B) 65 million years ... Started by rayancarla1	1 Replies 292 Views	Jul 27, 2018 by mfedorka
A machine gun, of mass 35. kg, fires 50. gram bullets, with a muzzle velocity of 750. m/s, at the ... Started by altibaby	1 Replies 67 Views	Jul 27, 2018 by Viet Thy
What are the dimensions of a square acre of ground if 1 square mile = 640 acres? A) 147' 147' ... Started by Lisaclaire	3 Replies 140 Views	Jul 27, 2018 by angrybirds13579
Capacitance is o A/d for A) all capacitors. B) parallel wires. C) parallel plates. D) ... Started by Frost2351	1 Replies 98 Views	Jul 27, 2018 by prumorgan
My battery charger uses 12. watts. At 6.0 cents per kilowatt-hour, how much does it cost to charge ... Started by Marty	1 Replies 267 Views	Jul 27, 2018 by blfontai
A boat has a velocity 12. km/hr Southward and 16. km/hr Westward. What is its speed and how long ... Started by tsand2	1 Replies 57 Views	Jul 27, 2018 by nhea
State Kirchhoff's loop theorem. What will be an ideal response? ... Started by formula1	3 Replies 79 Views	Jul 27, 2018 by Zebsrer
According to conservative estimates, the end of habitability of Earth will come about A) 3 to 4 ... Started by cagreen833	1 Replies 64 Views	Jul 27, 2018 by akemokai
How might one connect four 10. volt batteries to create one equivalent battery having a potential of ... Started by lilldybug07	1 Replies 81 Views	Jul 27, 2018 by bpool94
Which of the following makes an approximate uniform electric field? A) a metal charged sphere B) ... Started by shenderson6	1 Replies 95 Views	Jul 27, 2018 by Sassygurl126
A 14. Coulomb charge is moving straight toward you at 4800. m/s. When it is 70. meters away from ... Started by daltonest1984	3 Replies 47 Views	Jul 27, 2018 by ynlevi
When sound passes from air into water A) its wavelength does not change. B) its frequency does ... Started by go.lag	1 Replies 45 Views	Jul 27, 2018 by mbcrismon
A radioactive isotope is A) an unstable nucleus that gives off radio waves B) a nucleus that ... Started by sammy	1 Replies 87 Views	Jul 27, 2018 by Jody Vaughn
A displacement vector is 34.0 m in length and is directed 60.0 east of north. What are the ... Started by genevieve1028	1 Replies 155 Views	Jul 27, 2018 by sarajane1989
According to optimistic estimates, the end of habitability of Earth will come about A) a few ... Started by ssal	3 Replies 85 Views	Jul 27, 2018 by otokexnaru
Electric field lines A) are closer together the stronger the field. B) start on negative charges ... Started by mpobi80	1 Replies 530 Views	Jul 27, 2018 by aadams68
What is one advantage that primates have over other forms of life? A) the ability to run fast B) ... Started by leilurhhh	1 Replies 106 Views	Jul 27, 2018 by succesfull
In radioactive decay, the original nucleus before decay is referred to as the A) daughter isotope ... Started by cool	1 Replies 336 Views	Jul 27, 2018 by kjo;oj
Why aren't houses wired with outlets in series instead of in parallel? What will be an ideal ... Started by stock	3 Replies 400 Views	Jul 27, 2018 by Pamela.irrgang@yahoo.com
Oxygen molecules are 16 times more massive than hydrogen molecules. At a given temperature, the ... Started by captainjonesify	1 Replies 2,776 Views	Jul 27, 2018 by connor417
The electric field at the surface of a conductor is A) always zero. B) perpendicular to the ... Started by nenivikky	1 Replies 25,595 Views	Jul 27, 2018 by sarajane1989
Why can a 25. watt fluorescent lamp produce as much illumination as a 100. watt incandescent lamp? ... Started by K@	1 Replies 2,902 Views	Jul 27, 2018 by rekilledagain
If you find yourself in a locality where the magnetic declination is 15. East, in which direction is ... Started by mp14	3 Replies 1,248 Views	Jul 27, 2018 by Hdosisshsbshs
A football field is 120 yd long and 50 yd wide. What is the area of the football field, in m2? A) ... Started by kamilo84	1 Replies 7,027 Views	Jul 27, 2018 by ong527
An empty coal-car (mass 20,000.kg) of a train coasts along at 10.m/s. An unfortunate 3000. kg ... Started by student77	1 Replies 772 Views	Jul 27, 2018 by ghepp