Chemistry, 13.03.2020 14:19 cutechickens13
A long stairway with a metal handrail runs between the houses of Amelia and her friend Michelle. After getting their parents' permission, the two girls often play near the stairs. One day, Michelle stands at the top of the steps and taps the railing with a stone. Amelia stands at the bottom of the steps with her right ear pressed against the railing.
Amelia sees Michelle tap the railing, then she hears the sound with the ear that is pressed against the railing. Last, Amelia hears the sound with her other ear. Why did Amelia hear the sound with her right ear before her left ear?
A.
because light travels more quickly through air than sound does
B.
because the particles that carry sound energy travel more quickly through solids than through gases
C.
because the waves that carry sound energy travel more quickly through solids than through gases
D.
because her right ear was closer to Michelle, who was the source of the sound
PLEAE HEEELLPPP
Answers: 2
Chemistry, 22.06.2019 02:00
Which of the following happens during cell division? (a) energy is created (b) waste is eliminated (c) carbon dioxide is released (d) damaged cells are replaced
Answers: 1
Chemistry, 22.06.2019 06:00
If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?
Answers: 3
Chemistry, 22.06.2019 07:50
In which situation can a mixture always be called a solution
Answers: 3
A long stairway with a metal handrail runs between the houses of Amelia and her friend Michelle. Aft...
Mathematics, 24.07.2020 19:01
Computers and Technology, 24.07.2020 19:01
Health, 24.07.2020 19:01
Social Studies, 24.07.2020 19:01
Mathematics, 24.07.2020 19:01
Computers and Technology, 24.07.2020 19:01
Biology, 24.07.2020 19:01
Mathematics, 24.07.2020 19:01