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One type of steel has a density of 8000 kg/m^3 and a breaking stress of 7.1×108 N/m^2. A cylindrical guitar string is to be made out of a quantity of steel with a mass of 4.50 g.
a). What is the length of the longest and thinnest string that can be placed under a tension of 890 N without breaking?
b). What is the highest fundamental frequency that this string could have?
An object has a kinetic energy of 311 Joule and a momentum of magnitude 20.4 kg•m/s. Determine what the mass of the object
two capacitors have the same plate separation but one has square plates and the other has circular plates. the square
An AC generator is designed to produce a maximum EMF of 170V while rotating with an angular speed of 3600 rpm. how many turns of wire are needed
A 255-kg box is being pushed on a surface at a constant velocity using a force F=200 N as shown at right. What is the coefficient of friction between the box and the surface
What percentage of the neutrons would not interact if the concrete slab were made 36.0 cm thick? I know this is 1.305x10^1. B) How many centimeters thick would the concrete need to be so that 18.0 per cent of the neutrons are transmitted?
A 3.04 μF capacitor and a 7.84 μF capacitor are connected in series across a 17.0 V battery. What voltage would be required to charge a parallel combination of the same two capacitors to the same total energy?
A very powerful vacuum cleaner has a hose 2.91 centimeter in diameter. With no nozzle on the hose, compute the weight of the heaviest brick that the cleaner can lift
During each cycle a reversible engine absorbs 2550 Joule of heat from a high-temperature reservoir and performs 2100 Joule of work. Find how much heat is exhausted to the low-temperature reservoir during each cycle
A drinking straw 20 cm long and 3.0 mm in diameter stands vertically in a cup of juice 8.0 cm in diameter. What is the greatest height from which the child could drink
A 150 g mass attached to a spring with a force constant of 45.0 N/m vibrates on a horizontal, frictionless surface in simple harmonic motion with amplitude of 5.00centimeter. Evaluate the maximum speed and acceleration of the mass
A litre of water is utilized to cool some electronics. If 1,000 Joules of heat is given off by the electronics, by what temperature does the water increase? One litre of water has a mass of 1 kg and a specific heat of 4.184 Joules/(g C°).
1. a a massless rope is stretched horizontally between two supports that are 3.0 m apart. when an object of weight 3200
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