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With a gauge find the width of one of your fingers, also gauge the distance from the tip of your nose to your finger held upright at arms length. What is the angular size of your finger?
A flat (unbanked) curve on a highway has a radius of 220 m. A car rounds the curve at a speed of 18.0m/s. What is the minimum coefficient of friction that will prevent sliding
A pressure as low as P = 8 ? 10-11 Pa has been obtained. Suppose a chamber contains helium at this pressure and at room temperature, Estimate the mean free path
Starting with the equation E=mc^2, determine the ratio of MeV per AMU. For initial values, use 1 AMU = 1.66x10^-27 kg and c = 3.00x10^8 m/sec.
A piston in an automobile engine is in simple harmonic motion. Its amplitude of oscillation from the equilibrium (centered) position is +/- 7.86 cm and its mass is 1.684 kg. Find the maximum velocity of the poston
We can reasonably model a 90-W incandescent lightbulb as a sphere 5.5cm in diameter. find the visible light intensity at the surface of the bulb
A firefighter a distance d from a burning building directs a stream of water from a fire hose at angle ?i above the horizontal, at what height h does the water strike the building
Standing on the surface of a small spherical moon whose radius is 5.71·104 m and whose mass is 6.71·1018 kg, an astronaut throws a rock of mass 1.85 kg straight upward with an initial speed of 28.5 m/s.
A light beam is incident on a piece of zircon (n = 1.923) at the Brewster's angle. Find the value of Brewster's angle
a parallel-plate air capacitor of area a20.0cm2 and plate separation d 3.20mm is charged by a battery to a voltage
Two spheres are launched horizontally from a 1.2 -high table. Sphere is launched with an initial speed of 4.5. What is the time for the sphere to hit the floor
An astronaut of mass 73 kg pushes off a satellite of mass 420 kg, exerting a force of 120 N for the 0.82 s they are in contact. What is the speed of the astronaut after they have separated
Two circular coils of current-carrying wire have the same magneticmoment. The first coil has a radius of 0.082 m, has 144 turns, andcarries a current of 3.9 A. The secondcoil has 183 turns and carries a currentof 9.6 A. What is the radius of the seco..
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