Physics, 20.09.2019 03:10 Turtlelover05
Ahummingbird is hovering motionless beside a flower. the blur of its wings shows that they are rapidly beating up and down. if the air pushes upward on the bird with a force of 0.25 n, what is the force exerted on the air by the hummingbird? if the force of the bird on the air is downward, enter a negative value and if it is upward, enter a positive value.
Answers: 2
Physics, 22.06.2019 06:30
At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid
Answers: 2
Physics, 22.06.2019 07:20
What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.
Answers: 3
Physics, 22.06.2019 10:00
The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
Ahummingbird is hovering motionless beside a flower. the blur of its wings shows that they are rapid...
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