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Two equal piano wires have a fundamental frequency of 600 Hertz when kept under the same tension. Obtain what fractional increase in the tension of one wire will lead to the occurrence of 2 beats/s when both wires oscillate simultaneously?
A projectile ,was launched vertically from the surface, of the Moon rises to an altitude of 330km. What would be the projectile's initial speed
A spherical balloon is made from a material whose mass is 3.00 kg. The thickness of the material is negligible compared to the 1.4 m radius of the balloon. Find the absolute pressure of the helium gas
q1. a crate of 30.2- tools rests on a horizontal floor. you exert a regularly increasing horizontal push on it and
A 1500kg car moving at 40Km/hr is brought to a sudden stop. If all the car's kinetic energy is dissipated in heating its four 5.0kg steel brake disks, by how much do the disk temperatures increase? The specific heat of steel is c=0.120cal/gdegree Cel..
A bug is splattered on a car windshield. Evaluate the magnitude of the windshield's force on the bug to the magnitude of the bug's force on the windshield.
Sam wraps a string around the outside of a 0.040 m-radius 0.20 kg solid cylinder and utilizes it like a yo-yo. When released, the cylinder accelerates downwards at 2/3 g. Decide the rotational inertia of the solid cylinder.
A 0.75m diameter solid sphere may be rotated about an axis through its center by a torque of 11.5m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s.What is the mass of the sphere.
a near the bottom of the spring the spring only supports the mass of the mass hanger 50 g. assuming its k value is 12
question the largest transformer ever built handles a power of 1.50x109 w. this transformer is used to step down 765
A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 550 kg. Before a trip, the flywheel is attached to an electric motor, Find the kinetic energy stored in the flywheel
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
After 2.02 days, the activity of a sample of an unknown type radioactive material has decreased to 88.2% of the initial activity. What is the half-life of this material
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