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A toy car of mass 4 kilogram is sitting stationary when a child rolls a toy truck of mass 6.5 kilogram straight towards it in the negative x-direction with a speed of 5 m/s. Find the velocity of the center of mass of the system consisting of the two toys?
If you were to build a pipe organ with open-tube pipes spanning the range of human hearing (20 Hz to 20 kHz), what would be the range of the lengths of pipes required
A pipe is horizontal and carries oil that has a viscosity of 0.15 Pa · s. The volume flow rate of the oil is 4.6 10-5 m3/s. What is the absolute pressure at the input end
Consider two widely separated conducting spheres, 1 and 2, the second having six times the diameter of the first. Find the final charge q1 and q2
A stretched cord has a fundamental frequency of 144 Hz, a length of .9 m, and a mass of 2 g. What is the tension on the cord
The light emitted by a helium neon laser has a wavelength of 632.8 nanometer in air. calculate its wavelength in zircon
A 0.060-kg handball is thrown straight toward a wall with a speedof 10 m/s. It rebounds straight backward ata speed of 9.2 m/s. What average force was exerted on the player by the ball
A man of mass 76.5kg walks down the aisle of an airplane at a speed of 1.10 m/s in the forward direction while the plane moves at a speed of 280 m/s relative to the earth
When two unknown resistors are connected in series with a battery, the battery delivers 235 W and carries a total current of 5.00 A. Determine the values of the two resistors
A rod of length L carries a uniform linear charge density of 5 nC/m. find the electric field due to this rod at a distance of 20cm
Two blocks are connected by a string. The smooth inclined surface makes an angle of 39o with the horizontal, Obtain the direction and magnitude of the hanging block acceleration
When mass M is at the position shown, it is sliding down theinclined part of a slide at a speed of 1.89 m/s. find the coefficient of kinetic friction for the mass on the surface
An old mining tunnel disappears into a hillside. You would like to know how long the tunnel is, but it's too dangerous to go inside. how far is it to the end of the tunnel
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