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What is the critical angle for light to stay inside a thin glass rod (n = 1.72)
surrounded by air?
°
What if the rod is surrounded by water?
A circuit consists of an ideal ac generator, a 25 µF capacitor, and an 90? resistor, all connected in series. Find the average power supplied by the generator
Integrated circuits are manufactured in vacuum chambers in which the air pressure is 6.00×10?11 mm of Hg, determine the mean free path of a molecule
A freshly prepared sample of a certain radioactive isotope has an activity of 11.2 mCi. After 4.40 h, its activity is 8.00 mCi. Find the decay constant
Suppose a bullet of mass m = 6.77g is fired into a ballistic pendulum whose bob has a mass of M = 0.693kg. What was the speed of the bullet-bob combination immediately after the collision takes place
A 30 gram mass is hanging from a spring whose unstretched length is 20 cm and whose spring constant is 2.5 N/m. In the list below are described 5 situations. In some of the situations, mass is at rest and remains at rest. In other situations, at the ..
Io, a satellite of Jupiter, has an orbital period of 1.77 days and an orbital radius of 4.22 x 10^5 km. From these data, determine the mass of Jupiter
The mass density of an object is 16.0 g/cc, and its mass is determined to be 134 g. What is the volume of the object
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road, how fast can the truck be moving without the crate sliding
A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from rest and is pulled up a mine shaft by a cable connected to a winch, What maximum power must the motor provide
You are standing between two speakers that are separated by 80 m. Both speakers are playing a pure tone of 286 Hz. How fast are you running
An airplane goes North with an average speed of 100m/s, What is the plane's velocity relative to the ground
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