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Through a thunderstorm, 3.8 s elapses between observing a lightning flash and hearing the resulting thunder. About how far away in kilometres and miles was the lightning flash?
a)--------km
b)--------mi
The fundamental frequency of a pipe that is open at both ends is 560 hz . a) How long is this pipe? Use v = 344m/s . b) If one end is now closed, find the wavelength of the new fundamental. c) If one end is now closed, find the frequency of the new f..
Physics - Speed and Direction, Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next.
An Earth satellite moves in a circular orbit with an orbital speed of 5200 m/s. Find the radial acceleration of the satellite in its orbit
A jet airliner, moving initially at 330 mi/h to the east, suddenly enters a region where the wind is blowing at 100 mi/h toward the direction 30.0° north of east
a proton is initially at rest at a point where the potential is 471 v. some time later the proton is at a point where
a rock thrown with speed 7.50 and launch angle 30.0 above the horizontal travels a horizontal distance of 19.5 before
Two blocks of mass mA and mB, resting on africtionless table, are connected by a stretched spring and thenreleased. (a) Is there a net external force on the system? (b) Determine the ratio of their speeds, vA/vB.
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.10 m/s at an angle of 17.0° below the horizontal. How far horizontally from the base of the building does the ball strike the ground
Suppose that the Earth's orbit around the Sun is perfectly circular. Employing conservation arguments, find the value of the eccentricity e of the orbit
Consider the Earth and a cloud layer 900 m above the planet to be the plates of a parallel-plate capacitor. what is the maximum charge the cloud can hold
Explain how much gain or loss does Martha recognize and illustrate what is her basis in the distributed property and in her partnership interest following the distribution?
The three ropes are tied to a small, very light ring. Two of these ropes are anchored to walls at right angles with tensions T1 = 35 N andT2 = 70 N. What are the magnitude and direction of the tension Tvec3 in third rope.
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