Please can someone help by answering these questions asap.
A cow has eaten 1500KJ of stored chemical energy in the form of food. 945KJ is excreted as waste products. 495KJ is 'used' for respiration.
a. How much of the original 1500KJ is stored as chemical energy in the tissue 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 to the human. β
Answers: 1
Physics, 21.06.2019 18:00, kadinmorgan
Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?
Answers: 3
Physics, 22.06.2019 04:50, badpotterchris
Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k
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Physics, 22.06.2019 06:30, nathangirnet
What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 Γ 1015 hz? planckβs constant is 6.63 Γ 10β34
Answers: 3
Please can someone help by answering these questions asap.
A cow has eaten 1500KJ of stored chemica...
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