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svet-max [94.6K]

3 years ago

9

A measure of your memory in which you need to pick the correctly learned answer from a displayed list of options is known as a m

easure of

2 answers:

DaniilM [7]3 years ago

7 0

Answer: Recognition

Explanation:

A measure of your memory in which you need to pick the correctly learned answer from a displayed list of options is known as a measure of recognition. This method is ever useful in investigation

blondinia [14]3 years ago

5 0

Answer:

Recognition

Explanation:

Recognition is a cognitive process that involves a list of options being displayed.

The person involved is then told to make some selections according to the situation and the information / features gathered by the person after the encounter with the individual.

This is a good method in intelligence gathering for investigations and other important issues .

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What did Belgium do to the congo?

timama [110]

Answer:

They killed 10 million people and registered it as a colony

Explanation:

Brainliest helps

4 0

2 years ago

A wire of Nichrome (a nickelâ€“ chromiumâ€“ iron alloy commonly used in heating elements) is 1.0 m long and 1.0 mmÂ² in cross-se

Lyrx [107]

Answer:

The conductivity of Nichrome is $2\times 10^6\ S/m$ .

Explanation:

Given:

Potential difference (V) = 2.0 V

Current flowing (I) = 4.0 A

Length of wire (L) = 1.0 m

Area of cross section of wire (A) = 1.0 mm² = 1 × 10⁻⁶ m² [1 mm² = 10⁻⁶ m²]

We know, from Ohm's law, that the ratio of voltage and current is always a constant and equal to the resistance of the resistor. Therefore, the resistance of the nichrome wire is given as:

$R=\frac{V}{A}=\frac{2.0}{4.0}=0.5\ \Omega$

Now, resistance of the nichrome wire in terms of its resistivity, length and area of cross section is given as:

$R=\rho\frac{L}{A}$

Where, $\rho\to resistivity\ of\ Nichrome$

Now, plug in all the values given and solve for $\rho$ . This gives,

$0.5\ \Omega=\rho\frac{1.0\ m}{1\times 10^{-6}\ m^2}\\\\\rho=\frac{0.5\times 1\times 10^{-6}}{1.0}=0.5\times 10^{-6}\ \Omega-m$

Now, conductivity of a material is the reciprocal of its resistivity. Therefore, the conductivity of Nichrome is given as:

$\sigma=\frac{1}{\rho}=\frac{1}{0.5\times 10^{-6}}=2\times 10^6\ S/m$

Conductivity is measured in Siemens per meter (S/m)

Therefore, the conductivity of Nichrome is $2\times 10^6\ S/m$ .

7 0

2 years ago

Responding to the environment by maintaining a stable internal environment despite changing external conditions is

Debora [2.8K]

Chinook salmon work to maintain a stable internal environment despite changes in external conditions by the process called homeostasis. Homeostasis is important because salmon, like all living organisms, depend on the proper functioning of its cells to ensure its survival and the ability to reproduce.

Hope I helped!

5 0

3 years ago

Read 2 more answers

A piston-cylinder device initially contains 0.3 kg of nitrogen gas at 160 kPa and 140oC. The nitrogen is now expanded isothermal

irakobra [83]

Answer:

<h2>Work done by the gas is given as</h2><h2> $W = 1.72 \times 10^4 J$ </h2>

Explanation:

As we know that the process is isothermal so here work done is given as

$W = nRTln(\frac{P_1}{P_2})$

here we know that

$n = \frac{w}{M}$

$n = \frac{300}{28} = 10.7 moles$

now we have

$W = 10.7 (8.31)(273 + 140) ln(\frac{160}{100})$

so we have

$W = 1.72 \times 10^4 J$

4 0

2 years ago

A camera operator is filming a nature explorer in the Rocky Mountains. The explorer needs to swim across a river to his campsite

julia-pushkina [17]

Answer:

<em>a. Angle= 28.82°</em>

<em>b. Approved. He will get cold but he should be able to make it across</em>

Explanation:

Velocity Vector

The velocity is a physical quantity that measures how fast or slow at a particular direction some object is moving. It must be expressed as a vector with both a magnitude and direction. If the object is confined to move in one direction, then we can use the speed as the scalar (magnitude only) equivalent of the velocity.

a.

The explorer wants to swim across a river to his campsite, as shown in the image below. The river has a velocity vr and the explorer can swim at ve in still water. If he swam directly to the campsite, he would end up in a point below it because the river would push him down. He must swim with a velocity such that he overcomes the stream but he advances to its objective. Let's call the angle he must swim at respect to the shoreline to achieve his goal. The explorer's velocity can be decomposed in its rectangular components vx and vy. To overcome the river's velocity:

$v_{ey}=v_r$

We can compute the vertical component of the explorer's velocity as

$v_{ey}=|v_e|cos\alpha$

Thus

$v_r=|v_e|cos\alpha$

Solving for $\alpha$

$\displaystyle cos\alpha=\frac{v_r}{|v_e|}$

$\displaystyle cos\alpha=\frac{0.665}{0.759}=0.876$

Then we have the angle is

$\alpha=28.82^o$

b.

The horizontal component of the explorer's velocity is

$v_{ex}=0.759sin28.82^o$

$v_{ex}=0.366\ m/s$

This is the real velocity the explorer is having directly to the campsite

Knowing that

$\displaystyle v=\frac{x}{t}$

Solving for t

$\displaystyle t=\frac{x}{v}$

Calculating the time it takes the explorer to cross the river

$\displaystyle t=\frac{29.3}{0.366}$

$t=80\ sec$

Since this value is less than the limit value of hypothermia (300 sec), the decision is

Approved. He will get cold but he should be able to make it across

3 0

2 years ago