Physics, 22.02.2022 07:20 sCoTtYbOy5329
Cow has eaten 1500 kJ of stored chemical energy in the form of food. 945 kJ
is excreted as waste products. 495 kJ is ‘used’ for respiration.
a. How much of the original 1500 kJ is stored as chemical energy in the
tissues of the cow?
b. The answer to part a is all the energy that can be transferred to a human.
Calculate the efficiency of the energy transfer to the human.
Answers: 2
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Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k
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1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?
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Which wave is the result of amplification and produces a louder sound
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Cow has eaten 1500 kJ of stored chemical energy in the form of food. 945 kJ
is excreted as waste p...
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