Physics, 27.01.2022 14:40 janeou17xn
If William drove the axe into a tree for an effort distance of 5.0 cm and the mechanical advantage of the axe is 0.85, what is the resistance distance of the split tree?
A. 5.5 cm
B. 5.9 cm
C. 24 cm
D. 42 cm
Answers: 1
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Which of the following correctly describes the early view of catastrophism?
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The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.
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Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
If William drove the axe into a tree for an effort distance of 5.0 cm and the mechanical advantage o...
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