Physics, 28.01.2020 23:02 mgavyn9457
Which of the following is the human ear able to detect?
musical note
sonar
ultrasound
dog whistle
Answers: 3
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Will you chech and finish these for me, because i am stumped with them.
Answers: 1
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Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1
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Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents
Answers: 2
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What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force
Answers: 3
Which of the following is the human ear able to detect?
musical note
sonar<...
musical note
sonar<...
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