Ask question

Ask question

All categories

3 years ago

14

Small evidence is also called what?

1 answer:

siniylev [52]3 years ago

4 0

Small evidence is also called trace evidence.

You might be interested in

Answers assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 453 mmhg and the

OlgaM077 [116]

<span>T1 = 20.0 + 273 = 293.0 K T2 = 8.00 + 273 = 281.0 K use the combined gas law p1V1/T1 = p2V2/T2 765 x 580/ 293.0 = 440 V2/ 281-0 V2 = 967 mL</span>

8 0

4 years ago

What happens when a balloon is rubbed with a woollen cloth?

Mashutka [201]

I believe that the stack electricity forms a higher electricity rate

7 0

3 years ago

Which cloud would you be least likely to observe if the weather forecast Did not call for rain

Marizza181 [45]

@admins Requesting Admins...
time Limit (20) Seconds

4 0

3 years ago

A circular copper wire is put in tension under a weight of 7000N. What is the ratio of its diameter after and before the load is

zaharov [31]

Answer:

$\frac{d_f}{d} =0.9999983$

Explanation:

Given:

force applied on the copper wire, $F=7000\ N$

cross sectional area of the wire, $a=0.01\ m^2$

Poisson's ratio, $\mu=0.3$

we have, Young's modulus, $E=128\times 10^3\ MPa$

<u>Stress induced due to the applied force:</u>

$\sigma=\frac{F}{a}$

$\sigma=\frac{7000}{0.01}$

$\sigma=700000\ Pa=0.7\ MPa$

<u>Now the longitudinal strain:</u>

<u /> $\epsilon=\frac{\sigma}{E}$ <u />

<u /> $\epsilon=\frac{0.7}{128\times 10^3}$ <u />

<u /> $\epsilon=5.468\times 10^{-6}$ <u />

Now from the relation of Poisson's ratio:

$\mu=\frac{\nu}{\epsilon}$

where:

$\nu=$ lateral strain

$0.3=\frac{\nu}{5.468\times 10^{-6}}$

$\nu=1.6406\times 10^{-6}$ ..................(1)

<u>Now we find the diameter of the wire:</u>

$a=\pi.\frac{d^2}{4}$

$0.01=\pi\times \frac{d^2}{4}$

$\frac{0.04}{\pi} =d^2$

$d=0.1128\ m=112.8\ mm$

<u>When the tensile load is applied its diameter decreases:</u>

The lateral strain is also given as,

$\nu=\frac{\Delta d}{d}$

$1.6406\times 10^{-6}=\frac{\Delta d}{112.8}$

$\Delta d=0.000185\ mm$

Now the final diameter will be:

$d_f=d-\Delta d$

$d_f=112.8-0.000185$

$d_f=112.799815\ mm$

Now the ratio:

$\frac{d_f}{d} =\frac{112.799815}{112.8}$

$\frac{d_f}{d} =0.9999983$

6 0

3 years ago

briefly discuss the phenomenon of childhood maltreatment in the context of five different psychological perspectives

Butoxors [25]

Answer:

Child maltreatment or child abuse is a phenomenon of sexual, physical, and/or psychological abuse of children.

Five different psychological perspectives of childhood maltreatment are as follows:

Poverty is one of the biggest cause of childhood maltreatment that impact once psychological health.
Child do not get proper care from their parents.
Childrens are emotionally weak and anything negative thought can depress them.
Lack of communication sometimes make children underconfident.
Social descrimination on the basis of race and gender can impact a child psychological balance.

6 0

3 years ago