Physics, 25.07.2019 20:00 cutegirl0987
Which best describes the direction of heat? (a) from a substance with no thermal energy to a substance with high amounts of thermal energy (b) from a substance with less thermal energy to a substance with more thermal energy (c) from a cooler substance to a warmer substance (d) from a warmer substance to a cooler substance
Answers: 2
Physics, 21.06.2019 14:20
Physics make-up packetname_cle14. an observer hears a sound with a frequency of 400 hz. if the speed of sound is 340 m/s,what is the wavelength of the sound? a. 0.85 mb. 1.2 mc. 2.75 m13.6 m15. as sound travels from steel into air, its speed decreases. if the frequency of the wavedoesn't change, what happens to its wavelength? a. it increases(b) it decreasesc. it remains the samed. there is not enough information given
Answers: 1
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, 21.06.2019 21:30
Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
Answers: 2
Physics, 22.06.2019 09:30
An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?
Answers: 2
Which best describes the direction of heat? (a) from a substance with no thermal energy to a substa...
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