Physics

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An astronaut on a strange new planet having no atmosphere finds that she can jump up to a maximum ... Started by sheilaspns	3 Replies 121 Views	Jul 29, 2018 by tmlewis4706
The three main types of radiation produced by the sun are A) radio, infra-red, and visible. B) ... Started by Deast7027	1 Replies 45 Views	Jul 29, 2018 by zenzy
The core of the reactor at Three Mile Island A) never had a significant chance of a meltdown. ... Started by bio_gurl	1 Replies 57 Views	Jul 29, 2018 by Fayaz00962
If you pound a feather with a hammer, on which one is a greater force exerted? A) always the ... Started by tsand2	1 Replies 74 Views	Jul 29, 2018 by kmb352
In raising a 5000-N piano with a pulley system, for every 1 m of rope pulled down, the piano rises ... Started by rmenurse	3 Replies 160 Views	Jul 29, 2018 by javimendoza7
A ball rolling down an incline has its maximum kinetic energy at A) the top. B) half-way down. ... Started by Jipu 123	1 Replies 61 Views	Jul 29, 2018 by fffftttt
Which part of the electromagnetic spectrum has the lowest frequency? A) ultraviolet B) infrared ... Started by 123654777	1 Replies 95 Views	Jul 29, 2018 by Pamela.irrgang@yahoo.com
A circus diver drops from a high pole into water far below. When he is half-way down A) his ... Started by elizabeth18	1 Replies 101 Views	Jul 29, 2018 by Moriaki
During an emergency such as the Three Mile Island accident, neutron-absorbing rods are inserted into ... Started by saraeharris	3 Replies 154 Views	Jul 29, 2018 by mtmmmmmk
X-ray radiation typically comes from A) higher-energy electrons orbiting the nucleus in atoms. ... Started by Mr. Wonderful	1 Replies 97 Views	Jul 29, 2018 by wilsonbho
A thin beam of laser light of wavelength 514 nm passes through a diffraction grating having 3952 ... Started by kellyjaisingh	1 Replies 723 Views	Jul 29, 2018 by Athena23
Which of the following is a form of high-level nuclear waste? A) used nuclear fuel rods B) used ... Started by biggirl4568	1 Replies 289 Views	Jul 29, 2018 by AISCAMPING
A worker lifts a 20.0-kg bucket of concrete from the ground up to the top of a 20.0-m tall building. ... Started by P68T	3 Replies 206 Views	Jul 29, 2018 by phuda
Suppose you photographed Earth's dark side from space, using ultraviolet-sensitive film, and using ... Started by shenderson6	1 Replies 114 Views	Jul 29, 2018 by hanadaa
When the input piston of a hydraulic press is depressed 20 cm, the output piston is observed to move ... Started by jake	1 Replies 161 Views	Jul 29, 2018 by nixon_s
It's harder to stop or turn a moving supertanker than a small speedboat because A) the speed boat ... Started by lbcchick	1 Replies 77 Views	Jul 29, 2018 by DHRUVSHAH
A hammer is thrown upward with a speed of 14 m/s on the surface of planet X where the acceleration ... Started by go.lag	3 Replies 45 Views	Jul 29, 2018 by tsternbergh47
Can two pool balls, both of them moving, have a total momentum of zero? A) No, because any moving ... Started by tnt_battle	1 Replies 112 Views	Jul 29, 2018 by ynlevi
A golf club exerts an average horizontal force of 1000 N on a 0.045-kg golf ball that is initially ... Started by pane00	1 Replies 539 Views	Jul 29, 2018 by amandalm
From the edge of a roof you throw a snowball downward that strikes the ground with 100 J of kinetic ... Started by JGIBBSON	1 Replies 97 Views	Jul 29, 2018 by parshano
What is the physical difference between light and a radio wave? A) Light waves have a higher ... Started by dalyningkenk	3 Replies 74 Views	Jul 29, 2018 by kjo;oj
A 0.140-kg baseball is thrown with a velocity of 27.1 m/s It is struck by the bat with an average ... Started by cmoore54	1 Replies 36 Views	Jul 29, 2018 by tuwy
Which of the following facilities are needed to produce a plutonium A-bomb? A) enrichment plant ... Started by Chloeellawright	1 Replies 107 Views	Jul 29, 2018 by mmj22343
A constant horizontal pull acts on a sled on a horizontal frictionless ice pond. The sled starts ... Started by ec501234	1 Replies 230 Views	Jul 29, 2018 by yasmina
Your radio is tuned to 98 on the FM dial. What electromagnetic wave frequency is your radio ... Started by go.lag	3 Replies 158 Views	Jul 29, 2018 by zoeyesther