Physics, 25.08.2021 17:00 cacaface311
The distance between Earth and the Moon was determined by measuring the time it took for light waves from Earth to travel to the Moon and back. Why was it not possible to use sound waves for this experiment? A Sound waves must move through a substance. B Sound waves would change frequency on the return to Earth. C Sound waves move too slowly for the technique to be accurate. D Sound waves move more slowly in Earth’s atmosphere than in space I NEED HELP ASAP
Answers: 2
Another question on Physics
Physics, 20.06.2019 18:04
This chart shows characteristics of three different types of atoms. which statement is best supported by the information in the chart? atom x will donate electrons to atom y. atom x will accept electrons from atom y. atom y will accept electrons from atom z. atom z will donate electrons to atom x.
Answers: 3
Physics, 21.06.2019 22:30
A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?
Answers: 1
Physics, 22.06.2019 04:50
Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves
Answers: 2
You know the right answer?
The distance between Earth and the Moon was determined by measuring the time it took for light waves...
Questions
Mathematics, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
Social Studies, 15.10.2019 05:00
English, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
History, 15.10.2019 05:00
English, 15.10.2019 05:00
Mathematics, 15.10.2019 05:00
