Calculating the mass of the object
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.
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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.
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?
How much SO3 can be produced from 96.0 g of O2 and excess sulfur if the yield is 84.5%?
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?
What is the problem Paul Krugman describes in his article? What does he see as its implications for American society?
What is the potencial energy of an elevator with a mass of 8.00x 10^2 kg at the top of manila hotel, 3.80 m. above the street level?
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