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A 550-Hz longitudinal wave in air has a speed of 343 m/s.
A. How much time is required for the phase to change by 90° at a given point in space? (Given: lambda=0.624 m)
B. At a particular instant, what is the phase difference (in degrees) between two points 8.7cm apart?
Water is supplied to an office building 44.0 m high through a pipe at ground level. Find the pressure in the larger pipe on the ground floor
If a diverging lens of focal length -69.0 cm is then placed 25.0cm from the first lens on the opposite side of the lens from the object, What is the magnification due to the two-lens system
question an aquarium 2 m long 1 m wide and 1 m deep is full of water. find the work needed to pump half of the water
You have a concave spherical mirror with a 10.3-cm radius of curvature. You place an object on the mirror\'s axis, How far is the object\'s image from the mirror
q1. two bicycle tires are set rolling with the equivalent initial speed of 5.0 ms along a long straight road and
A 0.13 m segment of wire lies along the y-axis and carries a current of 3.8 A in the negative y direction. What is the force (magnitude and direction) on the segment of wire due to the magnetic field
A cylindrical container of inside diameter 0.6 meter is filled with gasoline to a depth of 2 meter. Determine what is the mass of the gasoline
An infinitely long straight wire is uniformly charged with a positive linear charge density +lambda. Determine the electric field in the region
A screw with 25 threads per centimeter is driven 1.49 cm into its fixture in 12.4 s with a cordless electric screwdriver. What is the average angular speed of the screwdriver
The left ventricle of the heart accelerates blood from rest to a velocity of + 20.8 cm/s. How much time does blood take to reach its final velocity
a long spring is stretched and attached to two walls 5.42 m apart. the mass of the spring is 276 g. the tension in the
A coin is placed on a vinyl stereo record making 33 1/3 revolutions per minute. What force accelerates the coin? In what direction is the acceleration of the coin? In which of the three radii listed in b would the coin be most likely to fly off? Why?
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