The height of an average adult person is closest to

Physics

2 answers:

Afina-wow [57]3 years ago

6 0

6 foot I hope I helped

Nikolay [14]3 years ago

6 0

Well the average height of men in America is about 5' 10". It's hard to answer this question to be honest as there is a lot of variables that come into play. Are there any answer choices?

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Which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?

Fittoniya [83]

The item with the most inertia is the one with the greatest mass.
It's easy to identify because it's also the heaviest one.

There are a great many other issues that make something
difficult for movers to move, besides its weight. Size, shape,
handles, wheels, getting it around tight corners, etc. So we
can't necessarily say that the heaviest item is the one that
presents the biggest problem for the movers.

6 0

3 years ago

A packing crate slides down an inclined ramp at constant velocity. Thus we can deduce thatA) a frictional force is acting on itb

torisob [31]

Answer:

A) a frictional force is acting on it

Explanation:

The crate is sliding down the inclined ramp at constant velocity: constant velocity means zero acceleration, a = 0. According to Newton's second law:

F = ma

this also means that the net force acting along the direction of the slope is zero.

Without frictional force, there would be only one force acting along this direction: the component of the weight of the crane parallel to the slope, acting downward:

$W_p = mg sin \theta$

where $\theta$ is the angle of the incline. Therefore, the net force along this direction would not be zero. In order to have a net force of zero, there must be another force acting upward on the crate: and the only force that is possibly acting on the crate against its direction of motion is the frictional force, whose magnitude must be equal to $W_p$ , in order to produce a net force of zero (and therefore, a zero acceleration).