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3 years ago

Which are consequences of smoking while pregnant

Physics

1 answer:

inn [45]3 years ago

6 0

Answer:

Explanation:

Tobacco. Smoking during pregnancy increases the risk of health problems for developing babies, including preterm birth, low birth weight, and birth defects of the mouth and lip. Smoking during and after pregnancy also increases the risk of sudden infant death syndrome (SIDS).

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When an exothermic reaction releases thermal energy, this energy is usually_____.

saw5 [17]

Explanation:

A chemical reaction in which heat or energy is released is known as an exothermic reaction.

On the other hand, when two objects are placed together and heat flows from hotter object to colder object then this process is known as conduction. Therefore, energy is dissipated in conduction process.

Since energy released released goes into the atmosphere and is not used anywhere.

Thus, we can conclude that when an exothermic reaction releases thermal energy, this energy is usually not useable to do work and it is dissipated by conduction.

8 0

3 years ago

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

PLEASEEE HELLPPPPPPPPPPPPPPPP

cupoosta [38]

Answer:

F = 2553.6 N

Explanation:

v² = u² + 2as

0² = 16² + 2a4.0

a = -32 m/s²

F = ma = 79.8(32) = 2553.6 N

3 0

3 years ago

A 30 g mass is attached to one end of a 10-cm-long spring.

Usimov [2.4K]

The value of the spring constant of the spring is 14.7 N/m.

The given parameters;

mass attached to the spring, m = 30 g
length of the spring, L₀ = 10 cm
angular speed of the mass = 90 rpm
final length of the spring, L₁ = 12 cm

The extension of the spring is calculated as follows;

$\Delta x = L_1 - L_0\\\\\Delta x = 12 \ cm - \ 10 \ cm\\\\\Delta x = 2 \ cm = 0.02 \ m$

The value of the spring constant of the spring is calculated by applying Hooke's law;

$F = mg = k\Delta x\\\\k = \frac{mg}{\Delta x } \\\\k = \frac{0.03 \times 9.8}{0.02} \\\\k = 14.7 \ N/m$

Learn more about Hooke's law here:brainly.com/question/4404276

4 0

3 years ago

All of the following are factors affecting flow rate except what?

faust18 [17]

Answer:

c. Vessel side holes

Explanation:

The "Poiseuille formula" which is given by $\\\begin{aligned} \small Q& = \small \frac{\pi r^4}{8 \eta}.\frac{\Delta P}{\Delta L}\\\end{aligned}$ describes the volumetric flow rate ( $\small Q$ ) through tubular sections.
Here, $\Delta P,\,\, \Delta L,\,\, r,\,\, \eta$ represent the injection pressure difference, the length of the section, the radius of the section and the viscosity index of the fluid that flows through the section respectively.
With this, one can confirm that all the factors except the vessel side holes affect the flow rate.
Side holes, however, are a factor that could give a measure of how much volume would flow to a particular location. In such a situation the flow rate remains unchanged and one location would receive a lower volume (not the whole) as some volume would spill out at the side holes.

#SPJ4

5 0

2 years ago