When set in a metal frame, what will almost always be needed to force a door.??
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When set in a metal frame, what will almost always be needed to force a door.??
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- From the provided information, show whether or not the stick will get through the hole.True or False: If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting farther from the pivot must produce the greater torque about the pivot.Two children with masses of 24 kg and 34 kg are sitting on a balanced seesaw. If the heavier child is sitting O.8 m from the center, at what distance from the center is the lighter child sitting? Your answer
- A schoolyard teeter-totter with a totallength of 6.4 m and a mass of 41 kg is pivoted at its center. A 21-kgchild sits on one end of the teeter-totter. (a) Where should a parentpush vertically downward with a force of 210 N in order to hold theteeter-totter level? (b) Where should the parent push with a force of310 N? (c) How would your answers to parts (a) and (b) change if themass of the teeter-totter were doubled? ExplainA tower crane (Figure 1) must always be carefully balanced so that there is no net torque tending to tip it. A particular crane at a building site is about to lift a m = 2700-kg air-conditioning unit. The crane's dimensions are shown in (Figure 2). The crane's counterweight has a mass of M = 10000 kg . Ignore the mass of the beam. Where must the crane's counterweight be placed when the load is lifted from the ground? (The counterweight is usually moved automatically via sensors and motors to precisely compensate for the load.)Express your answer to two significant figures and include the appropriate units. Determine the maximum load that can be lifted with this counterweight when it is placed at its full extent.Express your answer to two significant figures and include the appropriate units.