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Problem: Sound waves travel at a speed of 340m/s relative to air. You pursue a wave of sound at a speed that is 99% of the speed of sound relative to air.
(a) Find the speed of the sound wave relative to you.
(b) What is the difference between the speed of the sound wave relative to you and a speed of exactly 1% of the speed of sound relative to air? That is, how different is the result derived using the relativistic addition of velocities, from the result found using the Galilean addition of velocities?
Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +3.20 pC. What percentage of the electrons originally in the cube was removed?
A 1080 kilogram van pulls a 360 kilogram trailer. The van exerts a horizontal force of 3800 Newton against the ground in order to accelerate. Obtain what force does the van exert on the trailer
A 20.0- projectile is fired at an angle of 60.0 above the horizontal with a speed of 80.0 . At the highest point of its trajectory, the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial speed.
An object is thrown vertically upward such that it has a speed of 25 m/s when it reaches two thirds of its maximum height above the launch point. Determine this maximum height
An inverted image is formed, whose size is half the size of the object. When x is changed by 5 cm, the image shrinks to a quarter of the size of the object. What is the focal length of the mirror?
When the plane atats to accelerate for take off, a man is holding the pocket watch steady by its 20cm chain, Estimate the takeoff velocity of the plane
A car has an initial speed of 30 m/s and slows uniformly to 10 m/s in 5 secs. Determine the distance it travels in the 3rd second (t=2s to t= 3s)
A 35 kilogram trunk is pushed 4.6 meter at constant speed up a 30 degree incline by a constant horizontal force. Find the work done by the weight of the trunk
an aluminum bar 3.74m long has a rectangular cross section 1.09cm by 5.24cm . what is its resistance? what is the
A girl is using a rope to pull a box that has mass of 30kg across a level surface with constant velocity. What is the normal force of the floor on the box
For 25 factorial data, the Yates algorithm requires how many cycles/columns of additions and subtractions, followed by division by what?
Two coils have a combined resistance of 9Ω when connected in series and 2 Ω when connectedin parallel. Find the resistance of each coil
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