Physics, 26.10.2019 17:43, alecnewman2002
Ahummingbird hovers by exerting a downward force on the air equal, on average, to its weight. by newton's third law, the air exerts an upward force of the same magnitude on the bird's wings. find the average mechanical power (in w) delivered by a 2.80 g hummingbird while hovering if its wings beat 70.0 times per second through a stroke 3.10 cm long.
Answers: 2
Physics, 21.06.2019 23:00, 12camtheman
How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return
Answers: 1
Physics, 22.06.2019 00:40, naomicervero
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 1
Physics, 22.06.2019 04:00, tamyahamlin02p6b7yt
Determine the maximum r-value of the polar equation r =3+3 cos 0
Answers: 3
Ahummingbird hovers by exerting a downward force on the air equal, on average, to its weight. by new...
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