Physics

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Gravitational force is greater for a satellite in elliptical orbit when it is at the A) apogee ... Started by joe	1 Replies 72 Views	Jul 29, 2018 by joewallace
Compared to the speed a satellite loses when traveling from nearest to farthest points from Earth, ... Started by tichca	3 Replies 43 Views	Jul 29, 2018 by bpool94
Escape speed for a rocket is greatest from A) Earth. B) the Moon. C) the Sun. D) same for ... Started by audragclark	1 Replies 69 Views	Jul 29, 2018 by dyrone
Traveling from Earth to the Moon requires that a rocket have A) less than escape speed from ... Started by hbsimmons88	1 Replies 46 Views	Jul 29, 2018 by kjo;oj
A projectile that is fired vertically at 5 km/s from the Earth's surface will A) go into a ... Started by nevelica	1 Replies 56 Views	Jul 29, 2018 by guyanai
A projectile that is fired vertically at 8 km/s from Earth's surface will A) go into circular ... Started by lbcchick	3 Replies 80 Views	Jul 29, 2018 by meryzewe
What holds a circularly-moving satellite in orbit while the force of gravity pulls downward on it? ... Started by Frost2351	1 Replies 85 Views	Jul 29, 2018 by Juro
If the Earth had twice its present radius and twice its present mass, what change in weight would ... Started by future617RT	1 Replies 84 Views	Jul 29, 2018 by lauravaras
Spaceman Speff orbits spherical asteroid X with his spaceship. To remain in a circular orbit at 421 ... Started by bobbysung	1 Replies 59 Views	Jul 29, 2018 by brbarasa
Wood from the Lignum vitae tree in South America is denser than water. Could a boat be made with ... Started by j.rubin	3 Replies 50 Views	Jul 29, 2018 by kescobar@64
Distinguish between pressure and force in the case of weighing yourself on a common bathroom scale. ... Started by a0266361136	1 Replies 69 Views	Jul 29, 2018 by fwbard
We know that any body more dense than water will sink in water. Why? What will be an ideal ... Started by @Brianna17	1 Replies 115 Views	Jul 29, 2018 by sarahccccc
Explain in terms of buoyant force how a fish is able to rise and sink in water. Contrast this to the ... Started by londonang	1 Replies 84 Views	Jul 29, 2018 by todom5090
A planet has two small satellites in circular orbits around the planet. The first satellite has a ... Started by shenderson6	3 Replies 127 Views	Jul 29, 2018 by yuyiding
Ekapluto is an unknown planet that has two moons in circular orbits. The table summarizes the ... Started by sammy	1 Replies 46 Views	Jul 29, 2018 by kescobar@64
An object is executing simple harmonic motion. What is true about the acceleration of this object? ... Started by dalyningkenk	1 Replies 132 Views	Jul 29, 2018 by samiel-sayed
An object is undergoing simple harmonic motion with frequency f = 9.7 Hz and an amplitude of 0.12 m. ... Started by jparksx	1 Replies 187 Views	Jul 29, 2018 by s.meritte
When a chocolate bar is cut in half, its density of each half is A) halved. B) unchanged. C) ... Started by sarasara	3 Replies 59 Views	Jul 29, 2018 by vickybb89
If we double the mass of an object without a change in volume, its density would be A) half. B) ... Started by mynx	1 Replies 81 Views	Jul 29, 2018 by fatboyy09
The density of air at room temperature is about 1.2 g/cm3. Estimate the mass of air inside a 0.80-m3 ... Started by madam-professor	1 Replies 150 Views	Jul 29, 2018 by blakcmamba
Why is an umbrella in danger of being turned inside out on a windy day? What will be an ideal ... Started by Mr.Thesaxman	1 Replies 133 Views	Jul 29, 2018 by dreamfighter72
Compared to the density of a kilogram of feathers, the density of a kilogram of lead is A) less. ... Started by tiffannnnyyyyyy	3 Replies 194 Views	Jul 29, 2018 by Ksanderson1296
If the volume of an object doubles with no change in mass, its density would be A) half. B) ... Started by mydiamond	1 Replies 100 Views	Jul 29, 2018 by moormoney
There is a legend of a Dutch boy who bravely held back the Atlantic Ocean by plugging a leak near ... Started by lracut11	1 Replies 38 Views	Jul 29, 2018 by Dunkey
A completely submerged object always displaces its own A) volume of fluid. B) weight of fluid. ... Started by mspears3	1 Replies 73 Views	Jul 29, 2018 by dreamfighter72