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The steel E string of a violin is under a tension of 46.0 N. The diameter of the string is 0.170 mm and the length under tension is 35.0 cm. Find the unstretched length of this string and the work needed to stretch the string. (Give your answers with the correct number of significant digits.)
In preperation for building a space station, an astronaut removes a self-teliscoping uniform rod form the cargo bay and releases it, What is the angular speed after the catch slips
In an oscillating LC circuit, L = 3.20 mH and C = 2.20 µF. At t = 0 the charge on the capacitor is zero and the current is 2.40 A. (a) What is the maximum charge that will appear on the capacitor?
The log has a mass m= 984 kg; the truck has a mass M=8750 kg. Calculate the minimum coefficent of static friction u needed to keep the log in the back of the truck
A 1.6-rm MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats.
In a photoelectric-effect experiment, the wavelength of light shining on an aluminum cathode is decreased from 249nm to 207nm. What is the change in the stopping potential
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
A father pulls his young daughter on a sled with a constant velocity on a level surface a distance of 10 m. how much work does the father do
The diameter of a blood vessel narrows by 70% due to the presence of a plaque on the blood vessel walls. what is the systolic blood pressure in the narrowed vein (in mmHg)
A camera flashtube requires 8J of energy per flash. The flash duration is 2m/ss}. What power does the flashtube use while it's flashing?
Standing waves are set up on two strings fixed at each end. The two strings have the same tension and mass per unit length, but they differ in length by 0.60 cm. Determine the beat frequency produced by the two standing waves
An pickup truck with mass 1.79 103kg is traveling eastbound at +14.1 m/s, Find the speed of the entangled vehicles after the collision
Two point charges, +3.75 µC and -6.05 µC, are separated by 1.21 m. What is the electric potential midway between them
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