Physics

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Dwarf planets are very similar to A) larger Jovian moons B) the Earth's moon C) smaller Jovian ... Started by ec501234	1 Replies 140 Views	Jul 27, 2018 by ashely1112
What is the speed of sound in air at freezing temperature? A) 331 mph B) 650 m/s C) 331 m/s D) ... Started by luvbio	1 Replies 73 Views	Jul 27, 2018 by ergserg
A 200. resistor is rated at 1/4 W. (a) What is the maximum current it can draw? (b) What is the ... Started by chads108	3 Replies 90 Views	Jul 27, 2018 by Tabitha_2016
What do we currently believe was the main source of the Earth's oceans and atmosphere? A) impacts ... Started by captainjonesify	1 Replies 72 Views	Jul 27, 2018 by AaaA
A blackbody is an ideal system that A) absorbs 100 of the light incident upon it, but cannot emit ... Started by CharlieWard	1 Replies 76 Views	Jul 27, 2018 by FergA
Two 4. resistors are connected in parallel, and this combination is connected in series with 3 . ... Started by asan beg	1 Replies 257 Views	Jul 27, 2018 by mk6555
A horizontal metal bar rotates at a constant angular velocity w about a vertical axis through one of ... Started by rmenurse	3 Replies 330 Views	Jul 27, 2018 by essyface1
A parallel ray is a ray parallel to the A) mirror radius B) object axis C) chief ray D) optic ... Started by charchew	1 Replies 81 Views	Jul 27, 2018 by SomethingSomething
A flashlight draws 0.133 A from a 3.0 volt battery pack. In 2.0 minutes: (a) how much charge ... Started by Awilson837	1 Replies 87 Views	Jul 27, 2018 by Swizqar
A deuteron has the same charge as an electron but approximately twice a proton's mass. Suppose ... Started by javeds	1 Replies 72 Views	Jul 27, 2018 by juiceman1987
A 3.00-m long tube with circular crosssection tapers from a diameter of 10.0 cm at one end down to ... Started by burton19126	3 Replies 81 Views	Jul 27, 2018 by lindahyatt42
What is the frequency (in Hz) of a wave whose displacement is given y = 0.5 sin(0.20x + 120t), where ... Started by vinney12	1 Replies 35 Views	Jul 27, 2018 by AngeliqueG
The principal refraction of light by the eye occurs at the A) cornea. B) lens. C) sclera. D) ... Started by bobthebuilder	1 Replies 78 Views	Jul 27, 2018 by asdfasdf
A parallel-plate capacitor has plates of area 0.80 m2 separated by a distance of 3.0 mm. What is ... Started by Sportsfan2111	1 Replies 174 Views	Jul 27, 2018 by rachel
A Carnot engine is operated as a refrigerator, taking in 18. J of heat every second and expelling ... Started by captainjonesify	3 Replies 210 Views	Jul 27, 2018 by ally
If we were to intercept a signal from a civilization that was sent to another of its colonies on the ... Started by j.rubin	1 Replies 76 Views	Jul 27, 2018 by yifu223
The magnification M = -di/do is the ratio of image to object A) angular size. B) distance. C) ... Started by shenderson6	1 Replies 86 Views	Jul 27, 2018 by sarajane1989
Which dwarf planet did the NASA New Horizons spacecraft flyby in 2015? A) Pluto B) Eris C) ... Started by fbq8i	1 Replies 164 Views	Jul 27, 2018 by steff9894
If you hear thunder 5.0 s after seeing a flash of lightning, the distance to the lightning strike is ... Started by Marty	3 Replies 181 Views	Jul 27, 2018 by mathjasmine
Fiberscopes are based on the physical phenomena called A) diffusion. B) dispersion. C) total ... Started by leo leo	1 Replies 111 Views	Jul 27, 2018 by Ddddd
A cubic box with sides of 20 cm contains 2 1023 molecules of helium with a root-mean-square (rms) ... Started by Arii_bell	1 Replies 106 Views	Jul 27, 2018 by guyanai
The composition of the early atmosphere of the Earth was dominated by A) hydrogen (H2) B) ... Started by Frost2351	1 Replies 76 Views	Jul 27, 2018 by peilian
The thermal conductivity of aluminum is twice that of brass. Two rods (one aluminum and the other ... Started by abc	3 Replies 159 Views	Jul 27, 2018 by Beatricemm
Louis de Broglie A) set the limits on the probability of measurement accuracy (1927). B) ... Started by newyorker26	1 Replies 69 Views	Jul 27, 2018 by lou
At the second maxima on either side of the central bright spot in a double-slit experiment, light ... Started by danielfitts88	1 Replies 68 Views	Jul 27, 2018 by kardosa007