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A slender, uniform rod AB of mass m and a vertical shaft CD, each of length 2b, are welded together at their midpoints G. Knowing that the shaft rotates at the constant rate ω, determine the dynamic reactions at C and D.
You place a long straight wire on top of your compass, and the wire is a height of 3 millimeters above the compass needle. calculate the approximate angle the needle deflects
TV-reception antennas for VHF (channels 2 through 13) are constructed with cross wires supported at their centers, What is the frequency for channel 4
Hypothetically, you are standing on the balcony of an apartment on the 10th level of a building and you throw a ball at some angle, Î, above the horizontal away from the building. Find the angle and the initial velocity of the ball
A car takes 9 s to go from v = 0 to v = 75 m/s at approximately constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value should you use for a.
If a washing machine drum has a radius of 27 cm and spins at a rate of 3.9 revs per second, what is the strength of the artificial gravity that the clothes are subjected to? Express answer as amultiple of G. Please work out this question using "ma..
A ray of one color, for which n=1.51, and a ray of another color, for which n=1.6, travel through a piece of glass. What is the angle between the two rays in the glass
A certain atom is ionized so that it only has one election. The first LYman line is at about 30 nm. What is the atomic number of the atom
A thin, flat, uniform disk has mass M and radius R. Find the moment of inertia of the disk with the hole about an axis through the original center of the disk, perpendicular to the plane of the disk
An alpha particle (which is a helium nucleus, Q=+2e, m=6.64×10 27 kg) is emitted in a radioactive decay with KE = 5.43 MeV.What is its speed? Compute the magnitude of the force among two 5.10C point charges 6.6cm apart.
Two identical cars (m = 1350 kg) are traveling at the same speed of 26.9 m/s. compute the magnitude of the total momentum of the two cars
An electron with electric charge of 1.6 x 10-19 C falls through a potential difference of 41 kV in the vacuum of an X-ray tube. What is the kinetic energy of the electron, assuming it started from rest and that there is no loss of energy to fricti..
a convex mirror of radius of curvature 1.73 m is placed 0.237 m from a chess piece which is on the reflecting side of
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