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An aluminum rod is clamped one quarter of the way along its length and set into longitudinal vibration by a variable-frequency driving source. The lowest frequency that produces resonance is 4300 Hz. The speed of sound in an aluminum rod is 5100 m/s. Find the length of the rod.
Prior to the development of the digital camera, the 35-mm film camera was the norm. The designation "35 mm" refers to the size of the film (screen) on which the image is formed, What must the focal length of the camera lens be
An object with a height of 4.0 cm is placed 30.0 cm from a lens. The resulting inverted image has a height of 1.5 cm. What is the focal length of the lens
An 8m, 200 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.55, and ladder makes a 50.0° angle with the ground. How far up the ladder can an 800 N person climb before the ladde..
If you are designing a lander for Venus in the shape of a hemisphere 2.6m in diameter, how many newtons of inward force must it be prepared to withstand due to the Venusian atmosphere
An athlete rotates a 1.00-kg discus along a circular path of radius 1.04 m, Determine the magnitude of the maximum radial acceleration of the discus
If you drop an aspirin and it takes 0.18 sec to hit the table, how high above the table was the aspirin when it released?
Suppose after charging a 4 µF capacitor to 8 V, you connect it to the second uncharged capacitor of 7 µF. What voltage will your voltmeter read across the second capacitor
The electromagnetic wave used in a microwave oven have a wavelength of about 12.222 cm. What is the frequency of the radiation
Consider three resistors with unequal resistances connected in series to a battery. Which of the following statements are true? 1. The current flowing through each of the resistors is the same and is equal to the current supplied by the battery.
An Olympic runner is at the starting gate and hears the starting gun, Using only acceleration, ai, and time, tr, write an expression for the runner's final speed, vr, when he crosses the finish line
If the rocket gases are expelled at a speed of 2010 m/s, explain how much mass must be expelled?
A Hydrogen atom has one proton in the nucleus and one electron in the shell. In a classic model of the atom, What is the radius of the orbit
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