Physics

Replies / Views	Last post
The magnitude of the electric field in the radiation field from an antenna is inversely proportional ... Started by TVarnum	3 Replies 389 Views	Jul 29, 2018 by dawsa925
If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting ... Started by jessicacav	1 Replies 170 Views	Jul 29, 2018 by af
The transmitted intensity of an unpolarized beam of light passing through a polarizer is one half of ... Started by naturalchemist	1 Replies 112 Views	Jul 29, 2018 by jsm54321
According to the law of Malus, the transmitted intensity of a polarized beam of light passing ... Started by Frost2351	1 Replies 86 Views	Jul 29, 2018 by ryrychapman11
In order to produce beats, the two sound waves should have A) the same amplitude. B) slightly ... Started by lunatika	3 Replies 85 Views	Jul 29, 2018 by joewallace
The physicist responsible for explaining the wave nature of light was A) Sir Isaac Newton. B) ... Started by DelorasTo	1 Replies 65 Views	Jul 29, 2018 by jharrington11
A 0.330-kg volleyball is dropped from rest. It takes it 1.30 s to reach the ground. What is the ... Started by 123654777	1 Replies 85 Views	Jul 29, 2018 by joechoochoy
An elephant can hear sound with a frequency of 15.0 Hz. What is the wavelength of this wave? The ... Started by notis	1 Replies 99 Views	Jul 29, 2018 by KKcool
Electromagnetic waves can be produced by A) electric charges moving with constant velocity. B) ... Started by joe	3 Replies 145 Views	Jul 29, 2018 by Laurenleakan
The direction of propagation of electromagnetic waves is given by the A) right hand rule. B) ... Started by yoroshambo	1 Replies 88 Views	Jul 29, 2018 by bitingbit
A ten-year exposure to the sound of a riveting machine will cause your threshold of hearing to shift ... Started by Zulu123	1 Replies 123 Views	Jul 29, 2018 by dyrone
A plane has an airspeed of 142 m/s. A 16.0 m/s wind is blowing southward at the same time as the ... Started by 2125004343	1 Replies 67 Views	Jul 29, 2018 by lin77x
The right hand rule for the direction of propagation of the electromagnetic waves is to A) point ... Started by chandani	3 Replies 110 Views	Jul 29, 2018 by jjorrostieta
A 150-N box is being pulled horizontally in a wagon accelerating uniformly at 3.00 m/s2. The box ... Started by tingc95	1 Replies 107 Views	Jul 29, 2018 by jsm54321
What is the magnitude of the cross product of a vector of magnitude 2.00 m pointing east and a ... Started by schs14	1 Replies 242 Views	Jul 29, 2018 by Jayson
State three reasons for adding a dielectric material between the plates of a capacitor. What will ... Started by Bob-Dole	1 Replies 75 Views	Jul 29, 2018 by stillxalice
After being charged from a battery, the plates of a parallel plate capacitor are moved closer ... Started by jessicacav	3 Replies 54 Views	Jul 29, 2018 by briseldagonzales
Two ice skaters, one with a mass of 45 kg and the other with a mass of 60 kg, push off against one ... Started by Frost2351	1 Replies 76 Views	Jul 29, 2018 by sierramartinez
A 50.0-kg person stands on a 200-kg raft, which is at rest. She starts to walk on the raft with a ... Started by drink	1 Replies 125 Views	Jul 29, 2018 by kingfahad97
The direction of an electric field is from higher to lower potential. Indicate whether the ... Started by AEWBW	1 Replies 71 Views	Jul 29, 2018 by elyse44
A 500-kg cannon fires a 4.0-kg projectile with a velocity of 500 m/s relative to the ground. What is ... Started by abarnes	3 Replies 294 Views	Jul 29, 2018 by chloejackso
When a proton moves in a direction of the electric field, its potential increases but its potential ... Started by jlmhmf	1 Replies 100 Views	Jul 29, 2018 by matt
A distance R away from a light source we observe which of the following for the electromagnetic ... Started by joblessjake	1 Replies 52 Views	Jul 29, 2018 by hollysheppard095
A ball is thrown at an angle of above the horizontal. If there is no acceleration due to gravity ... Started by Jramos095	1 Replies 99 Views	Jul 29, 2018 by duke02
Unlike electric potential, the electric potential energy is a vector quantity. Indicate whether ... Started by Caiter2013	3 Replies 664 Views	Jul 29, 2018 by marict