Physics

Replies / Views	Last post
A bolt hole in a brass plate has a diameter of 1.2 cm at 20.C. What is the diameter of the hole when ... Started by jc611	3 Replies 199 Views	Jul 27, 2018 by ebonylittles
The Earth reversed its magnetic field about how many years ago? A) 700 B) 700,000 C) 11 D) ... Started by kamilo84	1 Replies 93 Views	Jul 27, 2018 by yeungji
For an orbital quantum number of 2, the magnetic quantum number can take on what allowed values? ... Started by dejastew	1 Replies 162 Views	Jul 27, 2018 by zogaridan
It takes 10. J of energy to move 2.0 C of charge from point A to point B. What is the potential ... Started by Arii_bell	1 Replies 201 Views	Jul 27, 2018 by amcvicar
A blackbody is a perfect emitter of the radiation it generates. Indicate whether the statement is ... Started by azncindy619	3 Replies 138 Views	Jul 27, 2018 by efwsefaw
If two light waves are coherent, which of the following is NOT necessary? A) They must have the ... Started by renzo156	1 Replies 83 Views	Jul 27, 2018 by jaaaaaaa
A concave lens always produces a virtual image. Indicate whether the statement is true or ... Started by nramada	1 Replies 95 Views	Jul 27, 2018 by nikmaaacs
Suppose you hear a car approaching and its horn is heard as a 3037. Hz tone. After passing, you hear ... Started by s.tung	1 Replies 158 Views	Jul 27, 2018 by mfedorka
What mass should be attached to a vertical spring (k = 39.5 N/m) so that the natural vibration ... Started by mcmcdaniel	3 Replies 120 Views	Jul 27, 2018 by wtf444
If a beam of X-rays is scattered from protons instead of electrons, the change in the wavelength of ... Started by BrownTown3	1 Replies 82 Views	Jul 27, 2018 by brittanywood
On a warm 30.C spring day, you are watching Richard take a buzzer and twirl it horizontally around ... Started by ahriuashd	1 Replies 79 Views	Jul 27, 2018 by xthemafja
In each cycle an engine gets 50. J from the combustion of fuel and it expels 45. J of heat to the ... Started by mpobi80	1 Replies 81 Views	Jul 27, 2018 by ASDFGJLO
The source of the earth's magnetic field is thought to be due to the motion of charged particles in ... Started by jace	3 Replies 100 Views	Jul 27, 2018 by AngeliqueG
The range of frequencies that are contained in a particular radio signal is referred to as its A) ... Started by lindiwe	1 Replies 81 Views	Jul 27, 2018 by meganlapinski
Three identical resistors are connected in parallel to a battery. If the current of 12. A flows from ... Started by EAugust	1 Replies 102 Views	Jul 27, 2018 by Toya9913
A circular loop of wire is rotated at constant angular speed about an axis whose direction can be ... Started by JGIBBSON	1 Replies 105 Views	Jul 27, 2018 by vickybb89
Two point charges of + 40.0 C and - 10.0 C are separated by a distance of 20.0 cm. A +7.00 C charge ... Started by bobbysung	3 Replies 148 Views	Jul 27, 2018 by eliasc0401
If someone were to suggest that possibly half of the galaxies in the universe are composed of ... Started by maegan_martin	1 Replies 51 Views	Jul 27, 2018 by lorealeza77
The Department of Energy develops a new reversible engine which has a COP of 4 when operated as a ... Started by nenivikky	1 Replies 75 Views	Jul 27, 2018 by isabelt_18
Grandfather clocks often are built so that each one-way swing of the pendulum is a second. How long ... Started by abarnes	1 Replies 126 Views	Jul 27, 2018 by Joc
Four resistors of 12, 3.0, 5.0, and 4.0 are connected in series. A 12-V battery is connected to the ... Started by awywial	3 Replies 138 Views	Jul 27, 2018 by abctaiwan
Which type of signal could carry the largest amount of information? A) low intensity B) high ... Started by s.tung	1 Replies 39 Views	Jul 27, 2018 by blazinlyss
The radius of curvature for a plane (flat) mirror is A) negative. B) infinite. C) zero. D) ... Started by humphriesbr@me.com	1 Replies 98 Views	Jul 27, 2018 by kingfahad97
The experiments of what person first clearly demonstrated the wave nature of light? A) Maxwell ... Started by danielfitts88	1 Replies 53 Views	Jul 27, 2018 by zenzy
The Otto cycle has how many strokes per cycle during which the volume decreases? A) 8 B) 4 C) 2 ... Started by lindiwe	3 Replies 89 Views	Jul 27, 2018 by Andromeda18