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A violin is tuned by adjusting the tension in the strings. OnBrian’s violin, the “A” string is tuned to aslightly lower frequency than Andrew’s, which is correctlytuned to 440.0 Hz.a) What is the frequency of Brian’s string if beats of 2.0Hz are heard when the two strings are played at the same time?b) Does Brian need to tighten or loosen his “A” stringto get in tune with Andrew? Explain your reasoning.
The coefficient of static and kinetic frictions between a 3 kg box and a desk are .4 and .3 respectively. What is the net force on the box when a 10 N horizontal force is applied to the box
The heels on a pair of women's shoes have radii of 0.54 cm at the bottom. find the stress on each heel
a super-particle travels forward along a straight cylindrical tube at 1000 m/s for 10 m, What is the average velocity
Identical point charges of +3.6 ?C are fixed to diagonally opposite corners of a square. Find the sign and magnitude of the third charge
In fact, the increased normal force at these large angles makes force of friction too large to move the lawnmower at all.
A railroad freight car weighing 289 kN and traveling at 1.52 m/s overtakes one weighing 207 kN and traveling at 0.910 m/s in the same direction. Find the loss of kinetic energy during collision
Multiple-Concept Example 7 deals with the concepts that are important in this problem. Find the minimum coefficient of friction necessary to allow the penny to rotate along with the disk
Two identical capacitors store different amounts of energy: capacitor A stores 2.2 x 10-3 J, Find the voltage across the plates of capacitor A
Suppose that the proper half life of a certain type of particle is 1.8μs. How many particles would be detected in one hour at the other end of the pipe
A circular saw blade of diameter 0.175m starts from rest. In a time interval of 6.05s it accelerates with constant angular acceleration to an angular velocity of 130 rad/s. Find the angle through which the blade has turned
question1the pulley of an ideal atwoods machine is given an upward acceleration a. find out an acceleration of each
q1. two 12-cm-diameter charged rings face each other 17.0 apart. both rings are charged to 40.0. what is the electric
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