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A person with mass m1 = 59.0 kg stands at the left end of a uniform beam with mass m2 = 93.0 kg and a length L = 2.9 m. Another person with mass m3 = 68.0 kg stands on the far right end of the beam and holds a medicine ball with mass m4 = 13.0 kg (assume that the medicine ball is at the far right end of the beam as well). Let the origin of our coordinate system be the left end of the original position of the beam as shown in the drawing. Assume there is no friction between the beam and floor.1) What is the location of the center of mass of the system? Location = 1.5872) What is the new x-position of the person at the left end of the beam? (How far did the beam move when the ball was throw from person to person?)3) To return the medicine ball to the other person, both people walk to the center of the beam. At what x-position do they end up?
The small piston of a hydraulic lift has a cross-sectional area of 3.30 cm2, and its large piston has a cross-sectional area of 197 cm2. What downward force of magnitude F1 must be applied to the small piston for the lift to raise a load whose weight..
Consider a parallel-plate capacitor with .30m by .50m-rectangular plates separated from eachother by .010mm. this capacitor has a capacitance of 280nF, find the dielectric constant of this capacitor
Two tiny conducting spheres are identical and carry charges of -18.5C and +51.6C. They are separated by a distance of 1.92 cm. (a) What is the magnitude of the force that each sphere experiences?
Consider a theoretical head-on collision between two carts of equal mass and equal speed. What is the total momentum after the collision
Consider a system consisting of two long, concentric solenoids. The larger solenoid has current running in counter clockwise fashion. Find the magnetic field strength inbetween the solenoids. positive number if it is up
A string attached to an oscillator at one end forms 5 nodes (counting the two ends) and produces a frequency of ? = 1.5 kHz. What is the linear density of the string
the resistivity of silver at 20 degrees C is 1.59 x 10^-8 ohms*m and it temp coefficient is 0.0061/degree C. Find resitance of silver wire at 43 degree C
The observer on the right, sees two final images. One image comes directly from the objet. What is the focal length of the concave mirror
A vertical straight wire carrying and upward 24-A current exerts an attractive force per unit length of 8.8 X 10-4 N/m on a secon parallel wire 7.0 cm away
Starting from rest, a basketball rolls from the top of a hill to the bottom, reaching a translational speed of 2.36 m/s. What is the height of the hill
In a skating stunt known as "cracking-the-whip," a number of skaters hold hands and form a straight line. estimate the magnitude of the centripetal force that acts on him
Blocks with masses of 2, 3, and 5 are lined up in a row on a frictionless table. All three are pushed forward by a 59 force applied to the 2 block. How much force does the 3.00 kg black exert on the 5 kg block.
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