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You close the top of your straw with your thumb and lift the straw out of your glass containing Coke. Holding it vertically, the total length of the straw is 45 cm, but the Coke held in the straw is in the bottom 15cm. What is the pressure in the straw just below your thumb? Ignore any surface tension effects. How large is the error (in per cent) if you neglect the air in the straw?
An observer in frame S standing at the origin observes two flashes of colored light separated spatially by ?x = 2980 m, Find the magnitude and direction of v.
A dentist uses a small mirror of radius 45 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 14 mm from the tooth, what is the magnification of the resulting image.
A series RCL circuit has a resonant frequency of 750 kHz, what is the value of the inductance?
A gas expands while 502 J of energy is added to it as heat. The expanding gas does 422 J of work on its surroundings.
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. how deep is the submarine
A 2.11-cm2 wafer of pure silicon is irradiated with electromagnetic radiation having a wavelength of 775 nm. How many electron-hole pairs are produced in one second
A cylindrical container 1.3 tall contains mercury to a certain depth, d. The rest of the cylinder is filled with water. what is the depth d
he lower block in the figure is pulled on by a rope with a tension force of 20 N. The coefficient of kinetic friction between the lower block & the surface is 0.30. The coefficient of kinetic friction between the lower block & the upper block is a..
A satellite with 2 rectangular solar cells wings with A=60m2, when the wings normally face the sun with an intensity I=1200 W/m2, how much force on the satellite due to the sunlight
Trucks with the noted masses moving at the noted speeds crash into barriers that bring them to rest with a constant force
A 380-kg sailboat has an acceleration of 0.636 m/s2 at an angle of 65.5 ° north of east. Find the direction of the net force that acts on the sailboat
A string is wrapped around a wheel of radius 0.4 m and moment of inertia 25 kg-m2. If the string is pulled with a force of 60 N, what is the angular acceleration of the wheel
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