You are a visitor aboard the new international space station, which is in a circular orbit around the earth with an orbital speed of vo = 1.37 km/s. the station is equipped with a high velocity projectile launcher, which can be used to launch small projectiles in various directions at high speeds. most of the time, the projectiles either enter new orbits around the earth or else eventually fall down and hit the earth. however, as you know from your physics courses at the academy, projectiles launched with a sufficiently great initial speed can travel away from the earth indefinitely, always slowing down but never falling back to earth. with what minimum total speed, relative to the earth, would projectiles need to be launched from the station in order to \"escape\" in this way? for reference, recall that the radius of the earth is re = 6.37 × 106 m, the mass of the earth is me = 5.98 × 1024 kg, the acceleration due to gravity on the surface of the earth is g = 9.81 m/s2 and the universal gravitational constant is g = 6.67 × 10-11 n·m2/kg2.
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Physics, 22.06.2019 12:50
Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom
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Physics, 23.06.2019 00:00
Abus travels 280km south along a straight path with an average velocity of 88km/h to the south. the bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. how long does the total trip last?
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Physics, 23.06.2019 01:30
The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.
Answers: 2
You are a visitor aboard the new international space station, which is in a circular orbit around th...
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