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A thin 2m long string with mass 3 g is stretched with a tension 90N between two ends. When it vibrates with the third harmonic the amplitude of the string at an antinode A of the standing wave on the string has an amplitude of 5 cm.
a) What is the speed of propagation of waves in the string?
b) What is the maximum transverse speed of this point A on a string?
c) What is the total power of the string vibrations?
Compare and contrast Symmetrical and Cambered wings. What are the reasons for using these different type of wings in an aircraft design?
A gas is contained in a closed cylinder with a mobile piston at oneof its ends. For the following conditions indicate: (1) if dW= -pdV or not, and (2) if the process is reversible, quasistatic,or irreversible. Explain in each case why is one or an..
Discover how much energy per unit time a roller bladder loses by radiation from her body. Her skin temperature is 35°C and the air temperature is 30°C. Her surface area is 1.2 m 2 , of which 75% is exposed to the air. Assume skin has e = 0.97.
Find an expression for the electric potential at the center. A proton is released from rest in a uniform electric field of magnitude 1.20×10^5 N/C. Find the speed of the proton after it has traveled.
You have a different system of unknown cart mass upon a level surface. The cart travels 165 [cm] in an unknown time period. The change in Kinetic Energy is -0.108845 [J]. What is the force of friction measured in Newtons?
The electric field midway between two equal but opposite point charges is 745 N/C, What is the magnitude of the charge on each
While at a country fair, you choose to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, Find what is the magnitude of your acceleration
In a calorimetry experiment, it is found that the temperature of 432 grams of iron pellets increased from 15.3 C to 82 C. How much heat was absorbed by the pellets
two charges -14 c and 3.3 c are fixed in place and separated by 3.3 m. a at what spot along a line through the charges
Assume that each star undergoes a uniform circular motion about the center of mass of the system. If the stars are always at a fixed distance of D apart, what is the period of orbiting (in seconds) for each of them? Justify your answer with approp..
A hockey puck slides with an initial speed of 26 m/s on a large frozen lake. What is the speed of the puck after 13 s
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. How many revolutions per minute is the sample making
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