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a load is suspended by cable from 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. Part a: what are the angles between the cable supporting the load and the beam and between the cable supporting the beam and the beam? Part b: what are the 2 equations gotten by newton's 2nd law (using f for horizontal component force at the surface and N for the vertical component force at the surface)? Part c: what is the torque equation (using L for the length of beam)? Part d: if the mass of the beam is 200kg and the mass of the load is 1000kg, what are all forces on the beam?
Mr. Gewanter, who's mass is 60.0 kg, is doing physics demonstration in the front of the classroom. a) How much gravitational force does he exert on 55-kg Martha in the front row, 1.50m away? b) How does this compare to what he exerts on 65-kg Lest..
State the direction as an angle with respect to the +x axis.
A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.00 cm. (a) What is the work done by the field on the electron? J (b) What is the change in..
What is the velocity of the plank relative to the surface of ice.
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Does current through a power supply increase when parallel bulbs are added? For example, if you have a circuit with one bulb and measure the current through the bulb to be 100 mA, what is the current through the power source when you add another b..
A person driving her car at 49 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection .
A shoe store uses small floor-level mirrors to let customers view prospective purchases. At what angle from vertical must such a mirror be inclined so that a person standing 59 from the mirror with eyes 142 off the floor can see her feet.
What is magnitude of induced emf between the ends of beam
A ball is thrown with an initial velocity of 14m/s. using the approximate value g=10 m/s^2, at what time does the ball reach its high point?
If the ball is released from rest at a height of 0.78m above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? suppose the ball is a solid sphere of radius 2.3cm and mass 0.14k..
How to find out the tension in the cable
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