Astudent wished to add a new experiment to chapter 2 by investigating whether the mass of water changes when it is heated. the mass of a beaker containing a sample of water at 20°c was 109.44 g. after heating the sample to 60°c, the com- bined mass of the beaker and water was 109.08 g. do these results contradict the law of conservation of mass? explain your reasoning.
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Physics, 21.06.2019 17:10
Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) determine the magnitude and direction of projectile velocity at t= 1.3s b) determine the magnitude and direction of projectile acceleration at t=1.3s
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An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?
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Physics, 22.06.2019 12:30
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
Astudent wished to add a new experiment to chapter 2 by investigating whether the mass of water chan...
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