Finding the magnitude of the torque
An athlete at the gym holds a 2.0 kg steel ball in his hand. His arm is 70 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 out to his side, parallel to the floor?
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Two identical piano wires have a fundamental frequency of 600Hz when kept under the same tension. What fractional increase in the tension of one wire lead to the occurrence of 6 beats/s when both wires oscillate simultaneously?
Calculate the pH of a solution resulting from the addition of 10.0mL of .10 M NaOH to 50.0 mL of .10M benzoic acid .
The difference in potential between the accelerating plates of a TV set is about 26000 V. If the distance between these plates is 1.50 cm, find the magnitude of the uniform electric field in this region.
A man racing his son has half the kinetic energy of the son, who has half the mass of the father. the man speeds up by 0.8 m/s and then has the same kinetic energy as the son. What were the original speeds of man and son?
Phosphourus, P, is combined with chlorine, Cl2, to give a gaseous compound with the formula PCLx. If you start with 2.097g of P and isolate 9.298g of PCLx, what is the value of x?
By sound waves to people sitting across the newsroom, 3.0 m from the newscaster. Who receives the news first? Take he speed of sound in air to be 343 m/s.
Assume that you are an administrator or a teacher leader at a school. What additional managerial tasks could you use in order to maintain the effectiveness of this team building?
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What types of unconscious or implicit bias might be present? How could they shape people's actions, decisions, or access to resources?
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