Angle between the beam and the horizontal
A load is suspended by cable fro a beam supported by another cable. The angle between the beam and the horizontal is 66 degrees and the angle between supporting cable and the horizontal is 39 degrees.
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You're carrying a 3.0-m-long, 22 pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. How much force must you exert to keep the pole
A bucket of mass 2.50 kg is whirled in a vertical circle of radius 1.45 m. At the lowest point of its motion the tension in the rope supporting the bucket is 33.0 N. Find the speed of the bucket, and how fast the bucket must move at the top of the
A car starts from rest on a curve with a radius of 190 m and accelerates at 1.30 m/s^2. How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.40 m/s^2?
This discussion question is an audio dialogue. Start the discussion and leave it open for your classmates to dialogue with you.
An experiment that can be used to measure the velocity of a bullet is to have two cardboard disks attached to a rotating shaft some distance apart and to measure the angular separation of the holes made by the bullet. In such an experiment, two c
The emergency room at HSI serves patients who arrive according to a Poisson distribution at the rate of 9 per hour. Treatment takes an average of 6 minutes and the treatment times can be considered to follow an exponential distribution. What
The tension is such that the block just comes to rest when it reaches the bottom of the incline. (The person's force is nonconservative!) What is this constant tension?
A baseball is seen to pass upward by a window 27 above the street with a vertical speed of 11. What is the balls initial speed?
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