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A metal guitar string has a linear mass density of ? = 3.20 g/m. What is the speed of transverse waves on this string when its tension is 80.0 N?
Determine the new planets mass density to earth mass density
A place-kicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short (vertically) of clearing the crossbar
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is ? = 1.90 10-7 C/m2, and the plates are separated by a distance of 1.5 10-2 m. How fast is the electron moving just bef..
If the density and atomic mass of copper are respectively 8.80 103 kg/m3 and 63.5 kg/kmol, Determine the drift speed of the electrons in a 10 gauge copper wire (2.588 mm in diameter) carrying a 19.5 A current
An iron bar of mass, 0.55 kg, slides down a frictionless incline 0.41 m high. What is the speed of the combined masses after collision
A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. the wheel is initially spinning at a rate of 85 rev/min. what is moment of inertia of the disk
By how much does the potential energy of a 15.0-kg child increase. Find v0.
What is the Professors initial velocity. He is pushed a distance 3.00 m along the incline by a group of students who together exert a constant horizontal force of 595 N. The professor's speed at the bottom of ramp is 1.70 m/s.
A long straight wire carries a current of 6.2 A. The wire is horizontal in the plane of the page (screen), Calculate the force that acts on the electron
An airplane is flying through a thundercloud at a height of 2 km. There are charge concentrations of 30 C at height 3 km at the top of the cloud and -30.0 C at a height of 1km, What is the electric field E within the cloud
A converging lens with focal length of 11.8 cm is placed in contact with a diverging lens with a focal length of 21.1 cm. What is the focal length of the combination
q1. what is the magnitude of an objects average velocity if an object moves from a point with coordinates x 2.54 m y
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