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Jet approaches at 1.60e2 m/s. On the jet, its engine whines at 8.0e2 Hz. What frequency does the whine sound to a standing listener, in Hz?
A cylindrical copper cable carries a current of 1100 A. There is a potential difference of 1.6 multiplied by 10-2 V between two points, What is the radius of the cable
Identify and explain the three criteria for establishing casue-and-effect relationships between variables. Discuss correlational and experimental designs ability to satisfy these criteria.
A movie camera with a (single) lens of focal length 70 mm takes a picture of a person standing 24 m away. what is the height of the image in millimeters on the film
Four charges are placed in a three-dimensional space. The charges have magnitudes 2 nC, -4 nC, 1 nC, and -9 nC. If a Gaussian surface encloses all the charges, what will be the electric flux through that surface?
a 400 hz vibrating source produces a standing wave pattern in a 1.5 m string that contains two antinodes. when the same
a tugboat pulls a ship with a constant net horizontal force of 2720 newtons and causes the ship to move through a harbor. how much work does the tugboat do on the ship
A narrow beam of ultrasonic waves reflects off the liver tumor inthe figure below. If the speed of the wave is 7.5% less in theliver than in the surrounding medium, determine the depth of thetumor.
Two small spheres each with mass m = 5 grams and charge q, are suspended from a point by threads of length L = 0.30m. What is the charge q on each sphere if the threads make an angle theta = 20 degrees with the vertical
A player hits the ball at 48.2 m/s at an angle of 29.0 degrees above the horizontal. The outfield bleachers are 145 m away from home plate. What is the maximum height, above where the player hits the ball that the bleachers can be
A 2.00 kg particle moves in the xy plane with a velocity of v = (4.00 - 3.30 ) m/s. Determine the angular momentum of the particle
question an egg mass of 40 g is on a table of i meter high it falls and breaks. if the collision with the ground is
The length of a spaceship is 87 meter when it is at rest. If the spaceship travels by you with a speed of 0.72c, determine what length does it appear to you
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