Determining the magnitude of the torque
An athlete at the gym holds a 1.2 kg steel ball in his hand. His arm is 64 cm long and has a mass of 4.0 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight, but 30 degrees below horizontal?
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When the galvanometer in a wheatstone bridge circuit shows no deflection, why are the voltages across opposite branches on each side of the galvanometer necessarily equal?
The vertical component of this force is 128 newtons, while the horizontal component is 145 newtons. Calculate the magnitude of F.
Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of: a 1.50-mg mosquito moving at a speed of 1.40 m/s if the speed is known to within a + or - 0.01 m/s.
•Discuss whether or not jihadists are a serious threat to U.S. domestic security and state why. Please recommend two or three actions you believe would be effective in reducing the potential danger from jihadists in the U.S.
How much SO3 can be produced from 96.0 g of O2 and excess sulfur if the yield is 84.5%?
An object is found to move with an acceleration of magnitude 8 m/s2 when it is subjected to a force of magnitude 222 N. Find the mass of the object.
A 34.0 g sample of nitrogen gas reacts with an excess of hydrogen gas to give an actual yield of 4.75 g NH3. What is the percent yield for this reaction? Reaction: N2(g) + 3 H2(g) ? 2 NH3(g).
When 5.00 g of X is titrated with NaOH, it is found that X has two acidic hydrogens that react with NaOH and that 54.9 mL of 1.00 MNaOH is required to completely neutralize the sample. What is the molecular formula of X?
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Which of the following is a behavioral indicator related to Family? A) Developing school readiness and transition strategies B) Developing collaborative
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