Answers: 3
Physics, 21.06.2019 20:20
Aplanet of mass m 6.75 x 1024 kg is orbiting in a circular path a star of mass m 2.75 x 1029 kg. the radius of the orbit is r 8.05 x107 km. what is the orbital period (in earth days) of the planet tplanet?
Answers: 1
Physics, 22.06.2019 00:10
The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?
Answers: 3
Physics, 23.06.2019 02:30
If frequency goes down, what happens to wavelength? does it get shorter or longer?
Answers: 2
Physics, 23.06.2019 07:30
5. why should the electrons be placed separate from each other (why not together)?
Answers: 2
How are a watt and kilowatt-hour alike?...
Mathematics, 06.07.2019 18:50
History, 06.07.2019 18:50
History, 06.07.2019 18:50
English, 06.07.2019 18:50
Mathematics, 06.07.2019 18:50
History, 06.07.2019 18:50
Chemistry, 06.07.2019 18:50
English, 06.07.2019 18:50
Mathematics, 06.07.2019 18:50
History, 06.07.2019 18:50
Mathematics, 06.07.2019 18:50
History, 06.07.2019 18:50
Mathematics, 06.07.2019 18:50