Physics, 22.07.2019 03:30, Mathinator
1) which is not a way to know if a chemical change has occurred? a. heat is absorbed or released b. phase change occurs c. new color d. new substance is made 2) is co2 a reactant or product? 3) is o2 a reactant or product? (2 and 3 are combined i just made them two separate questions)
Answers: 1
Physics, 21.06.2019 16:30, ineedhelpireallydo
In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.
Answers: 1
Physics, 21.06.2019 17:00, itzia00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 22.06.2019 19:20, gokusupersaiyan12345
The dipole moment of the water molecule (h2o) is 6.17x10^-30 c. m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?
Answers: 1
1) which is not a way to know if a chemical change has occurred? a. heat is absorbed or released b....
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