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5 days ago

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Fill in the blanks to complete each statement about weathering. Weathering is the breakdown of rocks into smaller particles call

ed-------------- . ------------------ weathering is when rocks are physically broken into smaller pieces, but the minerals in the rock remain the same. When a rock is broken down in a way that changes the mineral composition, it is called----------------- weathering.

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Assume that the cart is free to roll without friction and that the coefficient of static friction between the block and the cart

Keith_Richards [3271]

Answer: $F=\frac{(M+m)g}{\mu _s}$

Explanation:

Provided:

The trolley, with mass M, is allowed to roll freely without friction.

The coefficient of friction between the trolley and mass m is $\mu _s$ .

A force F is applied to mass m.

The acceleration of the system is

$a=\frac{F}{M+m}$

The frictional force will counterbalance the weight of the block.

The frictional force is $=\mu _sN$

$N=ma$

$\mu _sN=mg$

$\mu _sma=mg$

$\mu _s=\frac{g}{a}$

$F=\frac{(M+m)g}{\mu _s}$

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Which of these nebulae is the odd one out?

Softa [3030]

The correct choice is D!

Clarification:

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