Physics, 15.12.2019 10:31 shannonderemer
The earth takes 1 year to revolve around the sun at 1 a. u. distance (an astronomical unit = 93,000,000 miles). if a planet were 4 a. u. from the sun, how many years would it take to make 1 orbit?
Answers: 3
Physics, 21.06.2019 18:30
What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.
Answers: 1
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
Physics, 22.06.2019 22:00
Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere
Answers: 1
Physics, 22.06.2019 22:20
The starship enterprise is caught in a time warp and spock is forced to use the primitive techniques of the 20th century to determine the specific heat capacity of an unknown mineral. the 125-g sample was heated to 96.3°c and placed into a calorimeter containing 85.9 g of water at 20.0°c. the heat capacity of the calorimeter was 14.2 j/k. the final temperature in the calorimeter was 24.5°c. what is the specific heat capacity (in j/g°c) of the mineral? enter to 4 decimal places.
Answers: 1
The earth takes 1 year to revolve around the sun at 1 a. u. distance (an astronomical unit = 93,000,...
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