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A force of 62 Newtons is applied to a wire with a diameter of0.5 mm. What is the tensile stress (in SI units) in the wire?
A wire is 2.5 m long. After applying a force to one end of thewire, it is now 2.501 m long. Calculate the tensile strain in the wire.
A Carnot engine performs work at the rate of 480 kW while using 760 kcal of heat per second. If the temperature of the heat source is 571°C, at what temperature (in Celsius) is the waste heat exhausted
The near point of a naked eye is 25 cm. When placed at the near point and viewed by the naked eye, Find the focal length of the eyepiece
a microwave oven generates a sound level of 49.6 db when consuming 1 kw of power.estimate the fraction of this power
At what rate does the Sun radiate energy, given that it is essentially a spherical blackbody with 6.96x10^8m, Use appropriate astronomical data to find the solar radiation per unit area at Earth's orbit
q1. a lightning bolt transfers 6.0 coulombs of charge from a cloud to the ground in 2.0 10-3 second. what is the
A tank contains 0.804 mol of molecular nitrogen (N2). Determine the mass (in grams) of nitrogen that must be removed from the tank in order to lower the pressure from 41.2 to 19.9 atm. Assume that the volume and temperature of the nitrogen in the tan..
What if, instead, you threw the flashlight away from you to change your momentum toward the spacecraft. If the flashlight had a mass of 2.00-kg and traveled at a speed of 10.0 m/s, how long would it take you to get back
A sports car traveling at 24.7m/s slows at a constant rate to a stop in 16s. What is the displacement of the sports car in this time interval
An ac power generator produces 50 A (rms) at 3600 V. The voltage is stepped up to 100 000 V by an ideal transformer and the energy is transmitted through a long distance power line which has a resistance of 100 ohms. What percentage of the power deli..
A railroad car of mass 2.44 104 kg, is moving with a speed of 3.96 m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
A steel piano wire 1.35 m long has a cross- sectional area of 0.00751 cm2. When under a tension of 68.9 N, how much does it stretch
If a rocket that has a mass of 4000 kg expels 50kg of gas with a speed of 1500m/s, what will be the speed of the rocket
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