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4 years ago

Give some hypothetical examples where destroying evidence might leave more that could identify you.

1 answer:

7 0

Faced with evidence that seems to contradict a hoped-for-finding, people may object to the study’s methodology. This is a example of where destroying evidence might leave more that could identify you.

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A glass optical fiber is used to transport a light ray across a long distance. The fiber has an index of refraction of 1.540 and

Zinaida [17]

Answer:

73.13°

Explanation:

According to snell's law,

n1sinθi = n2sinθr

n1/n2 = sinθr/sinθi

Critical angle is the angle of incidence at the denser medium when the angle of incidence at the less dense medium is 90°

This means i=C and r = 90°

The Snell's law formula will become

n1/n2 = sinC/sin90°

n2/n1 = 1/sinC

Where n1 is the refractive index of the less dense medium = 1.473

n2 is the refractive index of the denser medium = 1.540

Substituting the values in the formula,

1.540/1.473 = 1/sinC

1.045 = 1/sinC

SinC = 1/1.045

SinC = 0.957

C = sin^-1(0.957)

C = 73.13°

4 0

4 years ago

Chance drives his scooter 7km north he stops for lunch and then drives 5km East to his friend house what distance did he cover

Katena32 [7]

Answer:12km

Explanation:

7km+5km=12km

6 0

3 years ago

Tudy the images about geologic time.

Inessa [10]

Answer:

The first flowering plants appeared in the Mesozoic era, not the Paleozoic era.

Explanation:

The Mesozoic era was an era where numerous organisms started to develop in very unique and more advanced ways, both the animals and the plants. In the last period of the Mesozoic, the Cretaceous, the first flowering plants started to appear on the scene. This was revolutionary trait of the plants, and soon these plants started to occupy more and more space and became one of the dominant organisms on the planet. Other important evolution that took place in this period are the appearance of the dinosaurs and the mammals, both becoming the dominant animals on the planet, first the dinosaurs, after that the mammals.

8 0

3 years ago

Read 2 more answers

¿Cuál será la potencia de una bombilla conectada a una red de energía eléctrica de 440V, si la corriente que circula por el circ

goblinko [34]

Answer:

La potencia de la bombilla es de 1056 W.

Explanation:

La potencia de la bombilla se puede calcular usando la siguiente ecuación:

$P = I*V$

En donde:

P: es la potencia

I: es la corriente = 2,4 A

V: es la diferencia de potencial = 440 V

Entonces, la potencia es:

$P = I*V = 2,4 A*440 V = 1056 W$

Por lo tanto, la potencia de la bombilla es de 1056 W.

Espero que te sea de utilidad!

3 0

3 years ago

A balloon is filled with a gas at 111 kPa when the temperature was 22*C. If the temperature

storchak [24]

119.7kPa

Explanation:

Given parameters:

Pressure of gas in balloon = 111kPa

Temperature of gas = 22°C

Final temperature = 45°C

Unknown:

Final pressure = ?

Solution:

Since the gases in the balloon have the same number of moles. We can apply a derivative of the combined gas law to solve this problem.

At constant volume the pressure of a given mass of gas varies directly with the absolute temperature.

$\frac{P1}{T1} = \frac{P2}{T2}$

P1 is the initial pressure

P2 is the final pressure

T1 is the initial temperature

T2 is the final temperature

convert from celcius to kelvin:

tK = 273 + tC

T1 = 273 + 22 = 295K

T2 = 273 + 45 = 318K

$\frac{111}{295} = \frac{P2}{318}$

P2 = 119.7kPa

learn more:

Ideal gas brainly.com/question/13064292

#learnwithBrainly

3 0

3 years ago