Physics, 29.08.2019 22:30 chafinh9317
Which is true of planetary orbit a. they travel in elliptical orbits with the sun in the center b. the speed is the greatest when the plancts are closest to the sun in their orbits. c. the outer planets travel faster, but because of their huge orbits, they still take to go around the sun than the inner planets travel around the celestial sphere in a single direction, appearing to stop and back up phases just like the moon does as seen from earth. e. all the planets go through
Answers: 3
Physics, 22.06.2019 00:30
Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?
Answers: 1
Physics, 22.06.2019 10:00
Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
Answers: 1
Physics, 22.06.2019 14:40
On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)
Answers: 3
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Which is true of planetary orbit a. they travel in elliptical orbits with the sun in the center b. t...
Social Studies, 13.07.2019 16:00
Mathematics, 13.07.2019 16:00
Mathematics, 13.07.2019 16:00
History, 13.07.2019 16:00
Physics, 13.07.2019 16:00
History, 13.07.2019 16:00
History, 13.07.2019 16:00
Mathematics, 13.07.2019 16:00
History, 13.07.2019 16:00
History, 13.07.2019 16:00
Business, 13.07.2019 16:00
Social Studies, 13.07.2019 16:00
Social Studies, 13.07.2019 16:00
History, 13.07.2019 16:00