Physics

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Assume all else is unchanged, and the Earth's rotational axis is perpendicular to the ecliptic. As a ... Started by tingc95	1 Replies 141 Views	Jul 27, 2018 by carlsona147
If the plane of the Earth's equator were not tilted with respect to the ecliptic plane, a. the ... Started by TVarnum	3 Replies 120 Views	Jul 27, 2018 by peilian
On a clear night when an observer in Los Angeles sees a first-quarter Moon, an observer in London ... Started by LCritchfi	1 Replies 167 Views	Jul 27, 2018 by softEldritch
Earth doesn't experience a solar eclipse every month because a. of unpredictable weather ... Started by lracut11	1 Replies 89 Views	Jul 27, 2018 by aidanmbrowne
The ecliptic can be defined as a. the plane that is perpendicular to the Earth's axis of ... Started by tingc95	1 Replies 107 Views	Jul 27, 2018 by jackie
A full Moon always occurs a. on the 15th of every month. b. when the Moon is at right angles to ... Started by charchew	3 Replies 120 Views	Jul 27, 2018 by paavo
If the Sun passes directly overhead on at least one day per year, then a. you are within 23.4 ... Started by RYAN BANYAN	1 Replies 46 Views	Jul 27, 2018 by momo1250
The ____ is 18 years and 11 days long. a. sidereal period b. synodic period c. eclipse season ... Started by fnuegbu	1 Replies 98 Views	Jul 27, 2018 by blazinlyss
When it is winter in the northern hemisphere, it is ____ in the southern hemisphere. a. winter ... Started by lidoalex	1 Replies 132 Views	Jul 27, 2018 by HandsomeMarc
The summer solstice (at the start of summer) is the point on the ecliptic where the Sun a. ... Started by Pineapplelove6	3 Replies 122 Views	Jul 27, 2018 by whitcassie
At the time of the winter solstice (the start of winter) the sunlight is at a lower angle and thus ... Started by clmills979	1 Replies 96 Views	Jul 27, 2018 by Smiles0805
The elliptical shape of the Earth's orbit varies with time and takes about ____ to complete a cycle. ... Started by laurencescou	1 Replies 221 Views	Jul 27, 2018 by kjo;oj
If the Earth's period of rotation were halved, but the period of revolution about the Sun stayed the ... Started by sammy	1 Replies 107 Views	Jul 27, 2018 by fauacakatahaias
An eclipse of the Moon (lunar eclipse) as seen from Earth, happens when a. the hot luminous Moon ... Started by cagreen833	3 Replies 299 Views	Jul 27, 2018 by AngeliqueG
Absolute zero is a. zero degrees Celsius. b. the temperature at which atoms have no remaining ... Started by daltonest1984	1 Replies 94 Views	Jul 27, 2018 by mbcrismon
The neutral hydrogen atom consists of a. one proton and one neutron. b. one proton. c. one ... Started by natalie2426	1 Replies 190 Views	Jul 27, 2018 by ecox1012
An atom can be excited a. if it emits a photon. b. if it collides with another atom or electron. ... Started by yoroshambo	1 Replies 118 Views	Jul 27, 2018 by jxjsniuniu
A(n) ____ contains two or more atoms that are bound together by exchanging or sharing electrons with ... Started by Alainaaa8	3 Replies 84 Views	Jul 27, 2018 by bfulkerson77
The ____ of a gas is a measure of the average speed of the particles (atoms or molecules) in the ... Started by Zulu123	1 Replies 146 Views	Jul 27, 2018 by morganmarie791
An atom that is excited a. is also ionized. b. is an isotope. c. has had its electron moved to ... Started by LaDunn	1 Replies 79 Views	Jul 27, 2018 by katheyjon
The lowest energy level in an atom is a. the absolute zero temperature. b. the ground state. c. ... Started by Kthamas	1 Replies 109 Views	Jul 27, 2018 by T4T
You are standing near a railroad track and a train is moving toward you at 60 mph and blowing its ... Started by cagreen833	3 Replies 216 Views	Jul 27, 2018 by dajones82
Which of the following can be determined by using the Doppler effect? I. the speed at which a star ... Started by nummyann	1 Replies 96 Views	Jul 27, 2018 by softEldritch
The ____ is responsible for binding the electrons to the nucleus. a. Kirchhoff's law b. ground ... Started by JMatthes	1 Replies 48 Views	Jul 27, 2018 by smrerig
____ has a negative charge and a mass about 2000 times smaller than a proton. a. A neutron b. An ... Started by futuristic	1 Replies 126 Views	Jul 27, 2018 by patma1981