Physics, 30.06.2019 01:50 alexandroperez13
One end of a horizontal string is fixed to a wall. a transverse wave pulse in the form of a crest is generated at the other end and moves toward the wall, as shown. consider the pulse after it has been reflected by the wall. v what is/are correct concerning the reflected pulse? a) the reflected pulse forms a crest. b) the reflected pulse forms a valley. c) the reflected pulse has a greater amplitude than that of the incident pulse. d) the reflected pulse has a greater speed than that of the incident pulse. 1. a and b only 2. a and d only 3. a, b and d only 4. a only 5. b and c only 6. b and d only 7. d only
Answers: 2
Physics, 22.06.2019 14:30
Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates
Answers: 3
Physics, 23.06.2019 02:00
Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not
Answers: 1
Physics, 23.06.2019 04:50
By examining a wave’s pattern after it interacts with a barrier or gap, measurements can be made to better understand certain wave phenomena. what is a broad question you can answer by doing this experiment?
Answers: 2
One end of a horizontal string is fixed to a wall. a transverse wave pulse in the form of a crest is...
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