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Two kids hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 28.7° above the horizontal. One kid, with a mass of 47.6 kg, is hanging1.31 m along the branch from the tree trunk. The other kid, with a mass of 33.3 kg, is hanging 2.19 m from the tree trunk. Find the magnitude of the net torque exerted on the branch by the kids? Assume that the axis is placed where the branch joins the tree trunk and is perpendicular to the plane formed by the trunk and the branch.
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In a television set the power needed to operate the picture tube comes from the secondary of a transformer. Find the current in the primary
A passenger car traveling due east at 53.6 m/s passes a truck traveling due east at 13.4 m/s. What is the frequency heard by the driver of the car
you are tuning an out of tune organ pipe to a tuned pipe of middle c 261.63 hz. you hear a beat frequency of 2
Veronique is nearsighted; she cannot see clearly anything more than 6.39 m away without her contacts. What is the greatest distance an object can be placed so that she can see it clearly with these glasses
A particle has an acceleration of 6.19 m/s^2 for 0.350 s . At the end of this time the particle's velocity is 9.26 m/s What was the particle's initial velocity?
solve 14 and 15 and 11-13- 10- 9- 2 -6- step by step without jumping and explain more because i wanna
A kayaker needs to paddle north across a 200 wide harbor. The tide is going out, creating a tidal current that flows east at 2.0. The kayaker can paddle with a speed of 3.0. In which direction must he paddle in order to travel straight across the har..
Another particle, of mass 7.4 10-27 kg, moves along the positive x-axis with a speed of 4.0 106 m/s. (Assume that mass is conserved.) Evaluate the third particle's speed. What is the direction of motion?
A uniform rod of mass 4.2 kg and a length of 1.0 m is hinged to a wall at the left end and held in a horizontal position by a taut string. find the resulting angular acceleration of the rod
an infinitely long line of charge has a linear charge density of 6.00times10-12 cm . a proton is at distance 14.0 cm
an lc circuit contains a 20 mh inductor and a 50 of capacitor with an initial charge of 10 mc. the resistance of the
the position of a particle is given by the expression x=4cos(3pt+p), where x is in meters and t is in seconds. estimate the frequency and the period of the motion
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