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a thin rod has a length of 0.25m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. the rod has an angular velocity of 0.27 rad/s and a momentum of intertia of 9.00 x 10^-4 kg.m^2. A bug standing on the axis decided to crawl out to the other end of the rod. When the bug (mass = 4.2 x 10^-3 kg) gets where it's going, what is the angular velocity?
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 2.90 m, are floating at rest on Space Station Freedom between two metal bulkheads.
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 21 m/s at an angle of 31 degrees above the horizontal
A projectile os fored at 35 degrees above the horizontal. Its initial speed is equal to 100 m/s. What is the maximum height reached by the projectile
A particle with a positive charge q= 8.6x10^-6C and a mass m= 0.45g moves with velocity v = 8m/s parallel to a wall. Find the sign and magnitude of the magnetic field
A simple pendulum is constructed from a mass of 2 kg and a massless string of length 3.5 m. What is the period of the pendulum
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. what mass of the isotope will be left after 9.3 minutes have elapsed
protons are projected with an initial velocity v0 = 10410m/s into a region where a uniform electric field E = 710 N/C is present. The protons are to hit the target that lies a horizontal distance of 1.27mm from the point where protons are launched..
A 10-cm-diameter cylinder of helium gas is 20 cm long and at 20°C. The pressure gauge reads 120 psi. how many helium atoms are in the cylinder? what is the mass of the helium?
The force stretching the D string on a certain guitar is 170 N. The string's linear mass density is 0.006 kg/m, What is the speed of the waves on the string
One end of a copper rod is in thermal contact with a hot reservoir at 995 K, Find the entropy change of cooler reservoir
The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 49-m-diameter loop-the-loop
A 1500 kg car traveling at a speed of 20 m/s skids to a halt on wet concrete where kinetic friction= 0.20. How far are the skid marks.
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