If performing an experiment in the field, you should

Physics

1 answer:

Nonamiya [84]4 years ago

7 0

Where googles or be prepared and what flier u talking about

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A large box of mass M is pulled across a horizontal, frictionless surface by a horizontal rope with tension T. A small box of ma

Alexxx [7]

Answer:

Explanation:

Given

Mass of big box is M and small box is m

Tension T will cause the boxes to accelerate

$T=(M+m)a$

where a=acceleration of the boxes

Now smaller box will slip over large box if the acceleration force will exceed the static friction

i.e. for limiting value

$\mu _smg=ma$

$a=\mu _s\cdot g$

thus maximum tension

$T=\mu _s(M+m)g$

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4 years ago

Can the tangent line to a velocity vs. time graph ever be vertical? Explain.

34kurt

Answer:

No. Because it would correspond to zero Instantaneous acceleration.

Explanation:

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3 years ago

If a girl carries groceries up a flight of stairs, is she doing work on the groceries? Explain.

nikdorinn [45]

Answer:

Explanation:

Yes she is doing work. With or without the groceries, she is still doing work. She does more work with the groceries than without because Work is defined by F which is defined by mass. The mass increases with the groceries.

The work done is against the force of gravity.

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3 years ago

Tall trees collapse in stoms, why?

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Consider a basketball player spinning a ball on the tip of a finger. If a player performs 1.99 J of work to set the ball spinnin

scoundrel [369]

To solve this problem it is necessary to apply the concepts related to rotational kinetic energy, the definition of the moment of inertia for a sphere and the obtaining of the radius through the circumference. Mathematically kinetic energy can be given as:

$KE= I\omega^2$