Physics, 23.03.2021 03:50 thhfvbjurddee
Here is a procedure used in a middle school science class to find the speed of sound in air. A student takes two erasers and begins to bang then together with a regular beat - perhaps at a rate of 20 'claps' in 10 second - in front of the brick wall of the school building. The student begins walking backward until she can't hear the echo of the erasers anymore. Explain, in terms of the principles of waves explored in this Lesson, how this procedure is able to estimate the speed of sound in air.
Answers: 2
Physics, 22.06.2019 03:00
Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.
Answers: 2
Physics, 22.06.2019 04:30
The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
Answers: 1
Physics, 22.06.2019 13:20
This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?
Answers: 3
Physics, 22.06.2019 19:00
Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m
Answers: 2
Here is a procedure used in a middle school science class to find the speed of sound in air. A stude...
Health, 24.10.2020 02:30
History, 24.10.2020 02:30
Physics, 24.10.2020 02:30
History, 24.10.2020 02:30
Mathematics, 24.10.2020 02:30
Mathematics, 24.10.2020 02:30
Spanish, 24.10.2020 02:30
Biology, 24.10.2020 02:30
History, 24.10.2020 02:30
Chemistry, 24.10.2020 02:30