Physics, 26.06.2019 23:30, lLavenderl
Consider the element carbon. how many electrons can be found in a carbon atom? how many are valence electrons? a) 6; 2 b) 6; 4 c) 12; 4 d) 12; 6
Answers: 2
Physics, 22.06.2019 16:40, jcblake
Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
Physics, 23.06.2019 02:30, Braxtonw875
Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?
Answers: 1
Consider the element carbon. how many electrons can be found in a carbon atom? how many are valence...
Mathematics, 04.07.2019 08:30
Mathematics, 04.07.2019 08:30
Mathematics, 04.07.2019 08:30
Social Studies, 04.07.2019 08:30