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Katyanochek1 [597]
3 years ago
14

Gabriel desplaza 2,5 m una caja de 40 kg de masa sobre

Physics
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Answer:

El trabajo es  550 n*N

Explanation:

El trabajo se define como un movimiento de una masa al aplicarle una fuerza.

De tal forma que lo podemos escribir como:

W = F*d

Donde se asume que la fuerza se aplica en la misma direccion que el movimiento.

En este caso, sabemos que la caja se mueve una distancia d = 2.5m

Y la fuerza aplicada es 220 N, (la fuerza es paralela a la superficie, entonces se aplica en la misma direccion en la que la caja se mueve)

Entonces el trabajo sera:

W = 2.5m*220N = 550 n*N

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We experience fictitious forces due to: a. Rotation of a reference frame b. Inertial reference frames c. Translational motion d.
lisabon 2012 [21]

Answer:

A.

Explanation:

A fictional force (also called force of inertia, pseudo-force, or force of d'Alembert, 5), is a force that appears when describing a movement with respect to a non-inertial reference system, and that therefore it does not correspond to a genuine force in the context of the description of the movement that Newton's laws are enunciated for inertial reference systems.

The forces of inertia are, therefore, corrective terms to the real forces, which ensure that the formalism of Newton's laws can be applied unchanged to phenomena described with respect to a non-inertial reference system. The correct answer is A.

8 0
4 years ago
If a sample of a radioactive isotope has a half-life of 1 year, how much of the original sample will be left at the end of the s
Tasya [4]

Answer:

1/4 of the original

Explanation:

That would be TWO half lives:

1/2  * 1/2   = 1/4   <======= 1/4 would be left

4 0
1 year ago
The critical angle for total internal reflection occurs when:___________.
Anastaziya [24]

Answer:

b) the refracted ray has an angle of 90 degrees

Explanation:

The angle of incidence is measured with respect to the normal separation of the media. The critical angle for total internal reflection occurs is:

\theta=arcsin(\frac{n_2}{n_1})

Here n_2 and n_1 are the refractive index of the mediums. This equation is an application of Snell's law, for the case where  the refracted ray has an angle of 90^\circ.

5 0
3 years ago
Which of the following types of light microscopy improves the resolution of thick specimens by illuminating one plane of the spe
Vilka [71]

Answer:

confocal microscopy

Explanation:

According to my research on different types of microscopes, I can say that based on the information provided within the question the tool being mentioned in this situation is a confocal microscopy. This is an extremely powerful microscope used to develop extremely sharp images of cells and tissues by viewing one plane of the specimen at a given time.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

7 0
3 years ago
Which of the following should be useful to show the percentage of total growth in plants exposed to various pollutants?
marishachu [46]
I think it is D. Bar graph
5 0
3 years ago
Read 2 more answers
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