Physics, 28.09.2019 04:40 jumpman2344
In 2012, astronomers reported the discovery of a planet that revolved around two sun-like stars. kepler-34b, a gaseous planet, revolves around the stars every 289 days, and the stars revolve around each other every 28 days. this information was presented in the january 11, 2012, issue of the journal nature. based on the information in the article, which title would be most appropriate? new planet found in open cluster system new planet discovered in binary star system discovery: new globular cluster and planet discovery: star system orbiting new planet
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Physics, 22.06.2019 02:30, raularriaga
If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?
Answers: 1
Physics, 22.06.2019 10:00, ceasar6071
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 16:30, mikayla62
Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
Answers: 1
In 2012, astronomers reported the discovery of a planet that revolved around two sun-like stars. kep...
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