Abat, flying toward the east at 2.0 m/s, emits a shriek that is reflected back to it from a wall that is 20.0 m in front of the bat at the instant the shriek is emitted. sound travels at 340 m/s in the air. how many milliseconds after emitting the shriek does the bat hear the reflected echo from the wall?
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Physics, 22.06.2019 19:30
Another word for electromagnetic energy is a. heat b. force c. matter d. radiation
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Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
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Physics, 23.06.2019 01:00
Suppose that two objects attract each other with a gravitational force of 16 units. if the distance between the two objects is double, what is the new force of attraction between the two objects?
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Physics, 23.06.2019 05:10
How do the forces acting on a boat compare to the force acting on a plane ?
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Abat, flying toward the east at 2.0 m/s, emits a shriek that is reflected back to it from a wall tha...
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