Physics, 09.03.2022 22:00 joydivision01
Which of the following is NOT a valid reason that less energy is transferred at each level of the food chain?
A. Energy is released as heat energy during respiration
B. Energy is destroyed because animals are higher levels do not need as much energy
C. Energy is used for life processes (e. g. Movement, breathing, etc.)
D. Energy is egested in feces or remains in dead organisms which are passed to decomposers
Answers: 3
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If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?
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Physics, 22.06.2019 17:30
Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element
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Physics, 22.06.2019 18:10
A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.
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Physics, 23.06.2019 01:00
To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.
Answers: 1
Which of the following is NOT a valid reason that less energy is transferred at each level of the fo...
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