subject
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.

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 13:00, briana21092005
You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.
Answers: 3
image
Physics, 21.06.2019 17:20, gymer630
American eels (anguilla rostrata) are freshwater fish with long, slender bodies that we can treat as uniform cylinders 1.0 m long and 10 cm in diameter. an eel compensates for its small jaw and teeth by holding onto prey with its mouth and then rapidly spinning its body around its long axis to tear off a piece of flesh. eels have been recorded to spin at up to 14 revolutions per second when feeding in this way. although this feeding method is costly in terms of energy, it allows the eel to feed on larger prey than it otherwise could. 1.a field researcher uses the slow-motion feature on her phones camera to shoot a video of an eel spinning at its maximum rate. the camera records at 120 frames per second. through what angle does the eel rotate from one frame to the next? 2. the eel is observed to spin at 14 spins per second clockwise, and 10 seconds later it is observed to spin at 8 spins per second counterclockwise. what is the magnitude of the eels average angular acceleration during this time? 3. the eel has a certain amount of rotational kinetic energy when spinning at 14 spins per second. if it swam in a straight line instead, about how fast would the eel have to swim to have the same amount of kinetic energy as when it is spinning? 4.a new species of eel is found to have the same mass but one-quarter the length and twice the diameter of the american eel. how does its moment of inertia for spinning around its long axis compare to that of the american eel?
Answers: 1
image
Physics, 22.06.2019 03:30, natu2072
Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
Answers: 1
image
Physics, 22.06.2019 08:40, Hazeleyes13
An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r
Answers: 3
You know the right answer?
Cow has eaten 1500 kJ of stored chemical energy in the form of food. 945 kJ is excreted as waste p...

Questions in other subjects:

Konu
Physics, 30.01.2020 01:02
Konu
Mathematics, 30.01.2020 01:02
Konu
English, 30.01.2020 01:02