You click your fingers in a large hall and hear the echo 0.5 seconds later off the back wall. How far is the back wall?
A boat send a sound to the bottom of the ocean and it takes 2 seconds to return to the boat. How deep in the ocean?
Please answer the questions above for 15 points, help desperately needed!:)
Answers: 1
Physics, 21.06.2019 16:30
When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.
Answers: 1
Physics, 22.06.2019 01:10
If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .
Answers: 2
Physics, 22.06.2019 05:30
Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n
Answers: 2
Physics, 22.06.2019 16:40
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
You click your fingers in a large hall and hear the echo 0.5 seconds later off the back wall. How fa...
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