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A meter stick is initially at rest in a horizontal position. It is free to rotate about the 50 centimeter point. A force of 25 Newton is applied to the 75 centimeter point in a direction that makes an angle of 30o below the 1.0 meter end of the meter stick. Another force of 20 Newton is applied to the 10 centimeter point in a direction that makes an angle of 40o below the 0 cm end of the meter stick.
a. Obtain the magnitude of the total torque on meter stick?
b. If the moment of inertia of the meter stick is 0.33 kg-m2, find what is the magnitude of the angular acceleration of the meter stick?
A vinyl record plays at 45.0 rpm. Assume it takes 10 s for it to reach this full speed, starting from rest. How many revolutions does the record make before reaching its final angular speed
a tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.02 ms. the car is
Two identical mandolin strings under 200 N of tension aresounding tones with frequencies of 523 Hz. How many beats per second are heard
If the pressure on a fish increases from 1.20 to 1.30 atm, its swim bladder decreases a volume from 8.19 mL to 7.56 mL, How much work is done on the air in the bladder
Two converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length. find is the final image upright or inverted
A nonconducting solid sphere of radius R has a volume charge density that is proportional to the distance from the center. That is, ? = Ar for r R, Find the expressions for the electric field inside the sphere
A ball of mass 522 g starts at rest and slides down a frictionless track. It leaves the track horizontally, striking the ground a distance x = 0.91 m from the end of the track after falling a vertical distance h2 (bottom of ramp)= 1.03 m from the ..
A 4.5m long, non uniform beam weighing 750N, supported by two weighing cables, is at rest in horizonal position as shown . The cable on the right has a tension of T1=650 N.
Suppose that at the top of its parabolic trajectory a projectile has a horizontal speed Uox. What is the radius of the circle
the electron and proton of a hydrogen atom are separated on the average by a distance of approximately 5.3 x 10-11 m.
On a frictionless track, a 0.307 kilogram glider moving 8.92 m/s to the right collides with a 0.811 kilogram glider moving 1.55 m/s to the left. determine how much kinetic energy (in percentage form) was dissipated in the collision
A +30 µC charge is placed 40 cm from an identical +30µC charge. How much work would be required to move a +0.41µC test charge from a point midway between them to a point 5cm closer to either of the charges?
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