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A high diver of mass 63.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 2.30 s after she enters the water, what average force did the water exert on her?
A 76 kg sprinter starts a race with an acceleration of 5.8 m/s2, What is the magnitude of the net external force on him in N
The speed of sound in human tissue is on the order of 1500 m/s. A 3.50-MHz probe is used for an ultrasonic procedure. (a) If the effective phsical depth of the ultrasound is 250 wavelengths, what is the physical depth in meters?
If so how fast will the cars be traveling when they collided? If they did not, what is a distance between the cars at this point.
A row of seats is parallel to a stage at a distance of 8.1 m from it. What is the separation between two seats, located near the center of the row, at which the tone cannot be heard?
A magnetic computer disk 8 cm in diameter is initially at rest. A small dot is painted on the edge of the disk. A small dot is painted on the edge of the disk. The disk accelerates at 600 rad/s^2 for 1/2 s , then coasts at a steady angular velocit..
Ten kilograms of saturated mixture are contained in a container at 70 C and a dryness fraction of 0.6. what is the volume of liquid, the volume of vapor, and the pressure of the mixture?
A 5.0-um strand of DNA carries charge +e per nm of length. Treating it as a charged line, What is the electric field strength 21nm from the DNA, not near either end
An aluminium cup of 180 cm3 capacities is totally filled with glycerin at 18° C. How much glycerin (in cubic cm) would spill out of the cup if temperature of both the cup and glycerin is increased to 33° C? (The linear expansion coefficient of alumin..
A fairground ride called "The Wall of Death" consists of a cylindrical container of internal diameter 6.50m, mounted on a cylindrical axis. Calculate the coefficient of static friction between the wall and the passengers' backs
assuming 95.0 efficiency for the conversion of electrical power by the motor what current must the 12.0 v batteries of
The coyote starts 42.0 m from the brink of a cliff. The roadrunner zips past him at a speed of 18.0 m/s. What is the acceleration of the coyote
The vibrational frequency of CO molecule is 6.42 x 1013 Hz. Estimate the amplitude of molecular vibrations.
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