Physics

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Consider a particle moving with constant speed such that its acceleration of constant magnitude is ... Started by RODY.ELKHALIL	1 Replies 175 Views	Jul 29, 2018 by batool
Tides are approximately 24 hours apart. Indicate whether the statement is true or ... Started by james	1 Replies 61 Views	Jul 29, 2018 by miss_1456@hotmail.com
John is nearsighted and cannot see things beyond 110 cm from his eyes. What is the focal length of ... Started by misspop	1 Replies 67 Views	Jul 29, 2018 by Liamb2179
Credit for research in our knowledge of the electron includes A) William Crookes. B) J.J. ... Started by pepyto	3 Replies 71 Views	Jul 29, 2018 by mjenn52
Alpha particles are normally repelled by atomic nuclei because A) their closeness with atomic ... Started by natalie2426	1 Replies 199 Views	Jul 29, 2018 by shailee
Composite particles that are composed of two quarks are called A) leptons. B) hadrons. C) ... Started by CQXA	1 Replies 206 Views	Jul 29, 2018 by Zack0mack0101@yahoo.com
Some alpha particles fired at a gold foil bounced backward as a result of A) reflection from the ... Started by folubunmi	1 Replies 181 Views	Jul 29, 2018 by chloejackso
When Rutherford directed a stream of alpha particles at a gold foil, some particles A) bounced ... Started by CQXA	3 Replies 185 Views	Jul 29, 2018 by enass
The first to be credited for assigning the terms positive and negative to electricity was A) ... Started by mynx	1 Replies 98 Views	Jul 29, 2018 by annierak
John is nearsighted and cannot see things beyond 90 cm from his eyes. What is the refractive power ... Started by Tirant22	1 Replies 73 Views	Jul 29, 2018 by Pariscourtney
A beam of electrons can be deflected by a A) magnetic field. B) electric field. C) both of ... Started by gbarreiro	1 Replies 75 Views	Jul 29, 2018 by blakcmamba
Both electrons and protons have equal-magnitude A) mass. B) charge. C) energy. D) all of the ... Started by savannahhooper	3 Replies 85 Views	Jul 29, 2018 by aruss1303
When an electron drops from a higher energy level to a lower one, energy is emitted. In comparison, ... Started by Charlie	1 Replies 104 Views	Jul 29, 2018 by dlook33
An excited hydrogen atom is capable of emitting radiation of A) a single frequency. B) three ... Started by dollx	1 Replies 57 Views	Jul 29, 2018 by diesoon
The spectral lines of atomic spectra are A) images of the slit in a spectroscope. B) orderly, ... Started by EY67	1 Replies 77 Views	Jul 29, 2018 by ally
The gravitational force between two objects is proportional to A) the distance between the two ... Started by mwit1967	3 Replies 145 Views	Jul 29, 2018 by vkodali
The rule stating that the sum of two emitted frequencies in an atomic spectrum equals a third ... Started by EY67	1 Replies 35 Views	Jul 29, 2018 by Kimmy
In the electron-wave model of the atom, an electron in the second energy level contains A) a ... Started by j.rubin	1 Replies 104 Views	Jul 29, 2018 by jessicaduplan
Which is the strongest fundamental force? A) gravitational force. B) electric force. C) nuclear ... Started by audie	1 Replies 271 Views	Jul 29, 2018 by owenfalvey
A 55.0-kg box rests on a horizontal surface. The coefficient of static friction between the box and ... Started by P68T	3 Replies 124 Views	Jul 29, 2018 by ghepp
When the nucleus of an atom emits a beta particle, the atom's atomic number A) decreases. B) ... Started by casperchen82	1 Replies 139 Views	Jul 29, 2018 by Jadwiga9
The finding that electrons occupy discrete orbits in an atom was first explained by the A) ... Started by BRWH	1 Replies 79 Views	Jul 29, 2018 by sarahccccc
What was discovered in atomic spectra by physics pioneers Balmer, Rydberg, and Ritz? A) ... Started by Yi-Chen	1 Replies 79 Views	Jul 29, 2018 by ttt030911
Two objects attract each other gravitationally. If the distance between their centers is cut in ... Started by LCritchfi	3 Replies 87 Views	Jul 29, 2018 by scrocafella
A problem with the Bohr model of the atom is that electrons circling the nucleus A) accelerate ... Started by ssal	1 Replies 107 Views	Jul 29, 2018 by Kimmy