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1. In the experiment, you will be using the speed of sound in your metal bar to help determine the Young's Modulus of that bar. What equation will you be using to find the speed of sound?
1b. The equation you quoted above should have two terms (other than the speed of sound itself). For each of these terms, state what it is, and explain what you will do, in this experiment, to find it.
2. If you were to take a 60.0 cm long steel bar, and heated it to the point that it would try to expand by 0.50 mm, what is the pressure you would need to apply, to keep it from expanding? (You may picture this as: it has already expanded by 0.50mm due to thermal expansion, and you then apply enough force to get it to contract back to its original length.) (Assume that all of the other properties of steel are independent of temperature.)
Two cars leave a stoplight, one 0.5128 s before the other. The second car accelerates with twice the acceleration of the first. What is the ratio of their speeds at that instant
A particle is moving with a certain speed. Its speed and energy are being measured with respect to Earth. determine the original speed of the particle
A 1.3-µF capacitor is connected to a 4.7-V battery. What is the magnitude of the charge on each plate?
Two sinusoidal waves of the same frequency travel in the same direction along a string. what is the amplitude (in cm) of the resultant wave
A light plane is headed due south with a velocity of 157 km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 121 km and their direction is not south but southeast (45.0^circ).
An automobile tire has a radius of 0.430 m, and its center moves forward with a linear speed of v = 14.0 m/s. Determine the angular speed of the wheel
Assume you have a monatomic gas with initial volume and pressure V1 and p1, respectively. If you apply work on the gas to compress it isothermally until its volume is 57% of its initial volume and its pressure rises to a value p2. To what percentage ..
Calculate the force needed to stop the downward motion of a jogger's leg, if his leg has a mass of 12.0 kg, a speed of 6.00 m/s
The work function of an element is 3.2 eV. Photons of a certain energy are found to eject electrons with a kinetic energy of 2 eV. What is the speed of the ejected electrons
A 62- kg gymnast stretches a vertical spring by 0.52 m when she hangs from it. How much energy is stored in the spring
An electrically neutral model airplane is flying in a horizontalcircle on a 3.0m guideline, which is nearly parallel to theground. The line breaks when the kinetic energy of the plane is 50.0 J. Reconsider the same situation, except that now there..
The cosmic background radiation permeating the universe has the spectrum of a 2.7 K thermal radiator. What is the peak wavelength
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