All categories

3 years ago

An entertainer pulls a table cloth off a table leaving behind the plates and sliverware undisturbed is an example of

Physics

1 answer:

umka2103 [35]3 years ago

5 0

Answer:

D. Newton's first law

Explanation:

Newton's first law of inertia says that an object will remain how it is, unless affected by an outside force. In this case, the plates want to remain stationary(not moving). Therefore, if you pull the table cloth fast enough, the force of friction produced will be small enough so that the Inertia of the plates will overcome the force of friction.

You might be interested in

HELPPPPP MEEEEE PLEASE I NEED TO SUBMIT IN LESS THAN 10 MINSS

DerKrebs [107]

Answer:

X = 2146.05 m

Explanation:

We need to understand first what is the value we need to calculate here. In this case, we want to know how far from the starting point the package should be released. This is the distance.

We also know that the plane is flying a certain height with an specific speed. And the distance we need to calculate is the distance in X with the following expression:

X = Vt (1)

However we do not know the time that this distance is covered. This time can be determined because we know the height of the plain. This time is referred to the time of flight. And the time of flight can be calculated with the following expression:

t = √2h/g (2)

Where g is gravity acceleration which is 9.8 m/s². Replacing the data into the expression we have:

t = √(2*2500)/9.8

t = 22.59 s

Now replacing into (1) we have:

X = 95 * 22.59

This is the distance where the package should be released.

Hope this helps

6 0

3 years ago

When does air become turbulent around a thrown ball?

kherson [118]

Answer: B (on the rough side)

Thanks for using Brainly! Vote Biden 2020

Hope we influenced your vote!

8 0

4 years ago

Ten quantities that are pure numbers

SSSSS [86.1K]

Answer:

Explanation:

1, i, π, e, and φ

dozen, gross, googol, and Avogadro's number etc, are pure numbers

hope this helps

plz mark it as brainliest!

8 0

4 years ago

Two life preservers have identical volumes, but one is filled with Styrofoam while the other is filled with sand. When the two l

soldier1979 [14.2K]

Answer:

Sand

Explanation:

While the term buoyancy may confuse the reader, the question here is referring to buoyant force.

Buoyant force is the amount of pressure exerted on an object by the liquid it is in. Given by the formula

$F_{b} = V_{o} D_{l} g$

Where

$F_{b}$ = Buoyant Force

$V_{o}$ = Volume of Object submerged in the liquid

$D_{l}$ = Density of Liquid

$g$ = Force of gravity

Since in this question the swimmer with the sand is completely submerged in water, more of the volume of his preserver is under the water hence the buoyant force is greater on it than the swimmer with the Styrofoam (as part of him is not submerged in water)

6 0

3 years ago

For a particular pipe in a pipe-organ, it has been determined that the frequencies 576 Hz and 648 Hz are two adjacent natural fr

N76 [4]

Answer:

(A) Fo = 72 Hz

(B) The pipe is open at both ends

This problem involves the application of the knowledge of standing waves in pipes.

Explanation:

The full solution can be found in the attachment below.

For pipes open at both ends the frequency of the pipe is given by

F = nFo = nv/2L where n = 1, 2, 3, 4.....

For pipes closed at one end the frequency of the pipe is given by

F = nFo = nv/4L where n = 1, 3, 5, 7...

The full solution can be found in the attachment below.

3 0

3 years ago