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A weather vane initially at rest has a moment of inertia of 0.110 kg · m2 about its axis of rotation. A 29.0 g piece of clay is thrown at the vane and sticks to it at a point 15.0 cm from the axis. The initial velocity of the clay is 11.5 m/s, directed perpendicular to the vane. Find the angular velocity of the weather vane just after it is struck.
A particle has an acceleration of 6.39 for 0.28. At the end of this time the particle's velocity is 9.31 .What was the particle's initial velocity.
Find out the critical angle theta_ce for e-waves in calcite. The index of refraction for light with electric field parallel to the optical axis (called extraordinary waves or e-waves) is 1.4864. The index of refraction for light with electric fiel..
If the separation between the two plates is double the value calculated in part (a), what potential difference is required for the capacitor to store charge of magnitude 260 pC on each plate
Calculate the force of gravity on a spacecraft 32000 km (5 earth radii) above the Earth's surface if its mass is 1800 kg. N (toward the earth)
A uniform chain with a mass of 1.38 kg per meter of length is coiled on a table. One end is pulled upward at a constant rate of 0.54 m/s. how much force must be applied to the end being raised
An oil droplet with 10.0 excess electrons is observed between two parallel electrodes spaced 12.0 mm apart. What is the radius of the droplet
Two different wavelengths of monochromatic light are projected through the same double slit. First a 490 nm light is projected, calculate the unknown wavelength
A beam consisting of 8.22x10^16 electrons/sec passes through a region of vacuum. A) What magnetic field would be measured 1.50cm away from the center of the beam?
A woman on a bridge 83.3 m high sees a raft floating at a constant speed on the river below. calculate the speed of the raft
A rat with an emissivity of .40, total area of .15m^2 and a temperature of 37C. How much energy must the rat's body generate to maintain a skin surface of 37C in a 24 hour period
A rifle with a barrel length of 59 cm fires a 8 g bullet with a horizontal speed of 350 m/s, What resistive force (assumed to be constant) does the wood exert on the bullet
Consider the skateboarder in the figure below. If she has a mass of 49 kg, an initial velocity of 23 m/s, what is the work done by friction on the skateboarder
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