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Roman55 [17]
2 years ago
11

Which of these actions will increase friction? Select three options. Scratching a surface to make it rougher polishing a surface

to make it smoother increasing the size of a flying object adding extra weight to an object placing oil between two surfaces.
Physics
2 answers:
soldi70 [24.7K]2 years ago
6 0

Answer:

a c d

Explanation:

k0ka [10]2 years ago
5 0

Answer:

scratching a surface to make it rougher

increasing the size of a flying object

adding extra weight to an object

Explanation:

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Answer:

v = 0.84m/s, v(max)= 0.997m/s

Explanation:

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W_s = \frac{1}{2}kc^2

Work lost to friction:

W_f =\mu mg(c-x)

Energy:

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(a) Solve for v:

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\frac{dv}{dx}=0 if:

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3 years ago
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A railroad car is pulled through the distance of 960 m by a train that did 578 kJ of work during this pull.
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Answer:

<h2>602.08 N</h2>

Explanation:

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