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Damm [24]
3 years ago
12

How much support force does a table exert on a book that weighs 15 N when the book is placed on the table?

Physics
1 answer:
mestny [16]3 years ago
8 0

Answer:

15 N

Explanation:

According to Newton's third law of motion, to every action, there is an equal and opposite reaction. This reaction is equal in magnitude to the force acting but in an opposite direction.

Now, if the book weighs 15 N, an opposite equal force will be: N = -15 N

But the magnitude of this will be the absolute value which is 15N.

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Pun zapato de golf tiene 10 tacos cada uno con un área de 0.01 pulgadas en contacto con el piso suponga que caminar hay un insta
Mars2501 [29]

Answer:

Las presión ejercida por los tacos sobre el suelo es 900 libras por pulgada cuadrada.

Explanation:

Según la Física, comprendemos que la presión es igual a la fuerza dividida por área. En este caso, el peso de la persona dividida por área total de los tacos de los zapatos de golf suponiendo una distribución uniforme de la fuerza. Es decir:

\sigma = \frac{W}{n\cdot A_{T}} (Eq. 1)

Donde:

\sigma - Presión, medida en libras por pulgada cuadrada.

W - Peso de la persona, medida en libras.

n - Cantidad de tacos en los zapatos, adimensional.

A_{T} - Área del taco, medida en pulgadas cuadradas.

Si conocemos que W = 180\,lb, n = 20 y A_{T} = 0.01\,in^{2}, la presión es:

\sigma = \frac{180\,lb}{(20)\cdot (0.01\,in^{2})}

\sigma = 900\,psi

Las presión ejercida por los tacos sobre el suelo es 900 libras por pulgada cuadrada.

3 0
3 years ago
How is the Un-DSM different from the DSM-IV-TR?
Ede4ka [16]

Answer:

In the DSM-IV, patients only needed one symptom present to be diagnosed with substance abuse, while the DSM-5 requires two or more symptoms in order to be diagnosed with substance use disorder. The DSM-5 eliminated the physiological subtype and the diagnosis of polysubstance dependence.

Explanation:

hope this help you

4 0
3 years ago
A huge, jagged rock sits atop a windy cliffside. Over a period of many years, how will the rock MOST LIKELY change?
sweet-ann [11.9K]

Answer:

Option (D)

Explanation:

Wind erosion will take place extensively as the cliff-side is exposed on the outcrop. Due to the wind erosion, the large, jagged rock will undergo the process of weathering where the softer parts of the rock will be eroded much rapidly in comparison to the harder parts, as a result of which the overall size of the rock will decrease and the surface will be uneven and somewhat rough. This will take place over a due course of time. The main agent that is responsible for erosion is the wind.

Thus, the given rock will become smaller and less smooth after a definite period of time.

Thus, the correct answer is option (D).

6 0
3 years ago
Read 2 more answers
A star begins as a ____, a large cloud of gas and dust.
Vlada [557]

A. Nebula . Is The Answer !


6 0
3 years ago
Read 2 more answers
A woman steps in front of a child to keep him from running off. which term best describes this example? negative work positive w
lana [24]

Answer:

negative force

Explanation:

Here woman is applying the force to stop the child or to prevent him from running.

Here we know that the force applied by the woman is opposite to the motion of child but here the child is not displaced by this applied force but the child is only prevented his running.

So here the work done by the woman is zero as there is no displacement by this force.

But here we can say that the the force of woman is against the motion of child so here this force is opposite force and hence it is termed as negative force here.

so correct answer will be

negative force

4 0
4 years ago
Read 2 more answers
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