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1. Are wave speed and pulse speed the same? Explain...2. If I were to create standing waves with a 4m spring with anamplitude of 30cm, how would the period, wavelength and wave speedbe affected if I were to decrease the amplitude ?
3. A speaker is emitting a particular frequency through an open pipe.Is there reflection occurring or does reflection only occur with aclosed pipe?
A golfer hits a golf ball of mass 0.045kg the ball over some short trees. he hits the ball at an angle of 60 degreed to the horizontal, What is the change in momentum of the golf club
a spherical ball with a radius of 1.440times10-1m is completely submerged in a fluid that has a density of
a 113-kg horizontal platform is a uniform disk of radius 1.75 m and can rotate about the vertical axis through its
The voltage and power ratings of a particular light bulb, which are its normal operating values, are 110 V and 60 W. what is the operating voltage of the bulb
A car travels at a constant speed around a circular track whose radius is2.2km. The car goes once around the track in290s. What is the magnitude of the centripetal acceleration of the car?
A sprinterexplodes out of the starting block with an acceleration of+2.14 m/s2 , which she sustains for 1.26 s.Then her acceleration drops to zero for the rest of the race. Whatis her velocity at t = 1.26 s and at the end of the race?
A Geosync TV satellite of mass 2000 kg is in a circular orbit around the earth, making one revolution or orbit every 24 hrs, What is the magnitude of the centripetal acceleration
A wedding ring is tossed into the air and given a spin, resulting in an angular velocity of 12.5 rotations per second. what is the diameter of the ring
A glass flask whose volume is 1000.37cm^3 at 0 degree celsius is completely filled with mercury at this temperature. Compute the coefficient of volume expansion of the glass
a solid copper sphere has a net positive charge. the charge is distributed uniformly over the surface of the sphere and
Does the pivot point (i.e., the triangle in the diagram upon which the ruler balances) exert a force on the ruler? Does it exert a nonzero torque about the pivot.
A 0.51 kg mass vibrates according to the equation x = 0.43 cos 8.37t, where x is in meters, and t is in seconds. (a) Determine the amplitude. m (b) Determine the frequency. Hz (c) Determine the total energy. J (d) Determine the kinetic energy and pot..
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