Physics

Replies / Views	Last post
The greenhouse effect is the A) generation of heat in the outer layers of the Earth's atmosphere ... Started by deesands	1 Replies 96 Views	Jul 27, 2018 by parker125
Nuclear fission is the process by which A) a number of smaller nuclei combine to form a larger ... Started by mia	1 Replies 83 Views	Jul 27, 2018 by komodo7
What are the shortest wavelength X-rays produced by a 50,000-V X-ray tube? What will be an ideal ... Started by Coya19@aol.com	3 Replies 90 Views	Jul 27, 2018 by frankwu0507
How fast must something be traveling if its mass increases by 10? What will be an ideal ... Started by asmith134	1 Replies 58 Views	Jul 27, 2018 by 234sdffa
What is the de Broglie wavelength of an electron whose kinetic energy is 1.0 eV? A) 520 nm B) ... Started by altibaby	1 Replies 106 Views	Jul 27, 2018 by ankilker
An object is placed 12 cm in front of a curved mirror. The magnification of the image is -3.0. What ... Started by bclement10	1 Replies 106 Views	Jul 27, 2018 by k2629
A 82.0 kg painter stands on a long horizontal board 1.55 m from one end. The 15.5 kg board is 5.50 m ... Started by SAVANNAHHOOPER23	3 Replies 140 Views	Jul 27, 2018 by Kaytorgator
Nuclear fusion is the process by which A) electrons are rearranged inside an atom, releasing ... Started by fagboi	1 Replies 82 Views	Jul 27, 2018 by mirabriestensky
What size capacitor must be placed in series with a 30. resistor and a 40. mH coil if the resonant ... Started by tsand2	1 Replies 79 Views	Jul 27, 2018 by miss_1456@hotmail.com
Kelli examines her new ruby ring with the jeweler's loop. The ruby appears 7.0 times larger. If her ... Started by s.tung	1 Replies 67 Views	Jul 27, 2018 by frankwu0507
A majorette fastens two batons together at their centers to form an X shape. What is the moment of ... Started by asd123	3 Replies 67 Views	Jul 27, 2018 by Mholman93
5.0 A at 110 V flows in the primary of a transformer. Assuming 100 efficiency, how many amps at 24 V ... Started by mspears3	1 Replies 84 Views	Jul 27, 2018 by mammy1697
What is the momentum of a 600. nm photon? A) 2.07 N-s B) 2.07 eV/c C) 2.07 KeV/c D) 2.07 MeV/c ... Started by Engineer	1 Replies 60 Views	Jul 27, 2018 by kaillie
The output of a generator is 440. V at 20. A. It is to be transmitted on a line with resistance of ... Started by viki	1 Replies 68 Views	Jul 27, 2018 by upturnedfurball
The focal lengths of the objective and eyepiece in a compound microscope are 0.8 cm and 2.5 cm, ... Started by kaid0807	3 Replies 240 Views	Jul 27, 2018 by sultana.d
A person of mass 50. kg has a wavelength of 4.42 10-36 m when running. How fast is she running? ... Started by Mr.Thesaxman	1 Replies 115 Views	Jul 27, 2018 by Fayaz00962
What is the de Broglie wavelength of a ball of mass 200. g moving with a speed of 30. m/s? A) 1.1 ... Started by Shelles	1 Replies 140 Views	Jul 27, 2018 by mcomstock09
The 100 Year Starship initiative aims to devise a plan for sending a crewed spacecraft to a nearby ... Started by jayhills49	1 Replies 97 Views	Jul 27, 2018 by frejo
What is the radius of the electron orbit in a singly ionized helium ion? What will be an ideal ... Started by Hungry!	3 Replies 93 Views	Jul 27, 2018 by Pswine
The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.50 cm, ... Started by tiffannnnyyyyyy	1 Replies 195 Views	Jul 27, 2018 by mistyjohnson
What is the ionization energy for a doubly ionized lithium ion (Z = 3)? What will be an ideal ... Started by jrubin	1 Replies 82 Views	Jul 27, 2018 by princessflame2016
If the temperature of the Earth warms up how does the carbon dioxide cycle respond? A) it slows ... Started by tichca	1 Replies 93 Views	Jul 27, 2018 by wilsonbho
If the temperature of the Earth cools, how does the carbon dioxide cycle respond? A) it increases ... Started by silviawilliams41	3 Replies 83 Views	Jul 27, 2018 by mariahkathleeen
Light in a frozen block of ice reflects off the ice-air interface and undergoes a phase shift of ... Started by Diane	1 Replies 61 Views	Jul 27, 2018 by Zack0mack0101@yahoo.com
An alpha particle (6.70 10-27 kg, 3.2 10-19 Coulomb) travels at 0.965c. What is its: (a) rest ... Started by fnuegbu	1 Replies 79 Views	Jul 27, 2018 by ktidd