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2 years ago

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The number that is used to show the value of one currency compared to another is called the __________. A. trade rate B. currenc

y rate C. exchange rate D. import-export exchange

1 answer:

Brrunno [24]2 years ago

8 0

Answer:

c is the answer

Explanation:

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Temperature difference in the body. The surface temperature of the body is normally about 7.00 ∘C lower than the internal temper

egoroff_w [7]

Answer:

7 K.

12. 6 °F

Explanation:

Convert the individual temperatures to Kelvin (Surface temperature and internal temperature) before calculating the temperature difference of the body,

Let The Surface temperature Be = X °C

And the internal Temperature will be = (X + 7) °C

Converting the surface and the internal temperature to temperature in Kelvin

Surface Temperature of the body (K) = (X + 273) K

Internal Temperature of the body (K) = (X + 7) + 273 = (X + 280) K.

∴ Temperature difference of the body (K) = Internal temperature(K) - surface temperature(K) = (X + 279) - (X + 280)

= X - X + 280 - 273 = 7 K.

∴Temperature difference of the body (K) = 7 K

Also for Fahrenheit, Convert the individual temperatures (Surface temperature and internal temperature) to Fahrenheit before calculating the temperature difference of the body.

We use , F = 1.8C + 32

Where C = temperature in Celsius.

also,

Let The Surface temperature Be = X °C

And the internal Temperature of the body will be = (X + 7) °C

Converting to Fahrenheit

Surface Temperature of the body = 1.8X + 32 °F

Internal Temperature of the body = 1.8(X+7) + 32 = 1.8X + 12.6 + 32

Internal Temperature of the body = 1.8X + 44.6 °F

∴ The temperature difference of the body (°F) = Internal temperature(°F) - surface temperature(°F) = (1.8X + 44.6) - (1.8X + 32)

surface temperature(°F) = 1.8X - 1.8X + 44.6 - 32

surface temperature(°F) = 12. 6 °F.

3 0

2 years ago

It's a snowy day and you're pulling a friend along a level road on a sled. You've both been taking physics, so she asks what you

Juli2301 [7.4K]

Answer:

0.0984

Explanation:

From the first diagram attached below; a free flow diagram shows the interpretation of this question which will be used to solve this question.

From the diagram, the horizontal component of the force is:

$F_X = F_{cos \ \theta}$

Replacing 42° for θ and 87.0° for $F$

$F_X =87.0 \ N \ *cos \ 42 ^\circ$

$F_X =64.65 \ N$

On the other hand, the vertical component is ;

$F_Y = Fsin \ \theta$

Replacing 42° for θ and 87.0° for $F$

$F_Y =87.0 \ N \ *sin \ 42 ^\circ$

$F_Y =58.21 \ N$

However, resolving the vector, let A be the be the component of the mutually perpendicular directions.

The magnitude of the two components is shown in the second attached diagram below and is now be written as A cos θ and A sin θ

The expression for the frictional force is expressed as follows:

$f = \mu \ N$

Where;

$\mu$ is said to be the coefficient of the friction

N = the normal force

Similarly the normal reaction (N) = mg - F sin θ

Replacing $F_Y \ for \ F_{sin \ \theta}$ . The normal reaction can now be:

$N = mg \ - \ F_Y$

By balancing the forces, the horizontal component of the force equals to frictional force.

The horizontal component of the force is given as follows:

$F_X = \mu \ ( mg - \ F_Y)$

Making $\mu$ the subject of the formular in the above equation; we have the following:

$\mu \ = \ \frac{F_X}{mg - F_Y}$

Replacing the following values: i.e

$F_X \ = \ 64.65 \ N$

m = 73 Kh

g = 9.8 m/s²

$F_Y = \ 58.21 N$

Then:

$\mu \ = \ \frac{64.65 N}{(73.0 kg)(9.8m/s^2) - (58.21 \ N)}$

$\mu = 0.0984$

Thus, the coefficient of friction is = 0.0984

5 0

2 years ago

A receptor that contains many mechanically-gated ion channels would function BEST as a ____________.

anastassius [24]

A receptor that contains many mechanically-gated ion channels would function BEST as a <span>tactile receptor.</span>

8 0

2 years ago

A migrating salmon heads in the direction n 45° e, swimming at 2 mi/h relative to the water. the prevailing ocean currents flow

Sophie [7]

Calculate for the x and y-components of the velocities involved in this item.

2 mi/h (45° east)
x-component = (2 mi/h)(sin 45°)
= 1.41 mi/h
y-component = (2 mil/h)(cos 45°)
= 1.41 mi/h

4 mi/h (east)
x-component = 4 mi/h
y-component = 0 mi/h

Adding up the corresponding components:
x-component = 5.4142 mi/h

y-component = 1.4142 mi/h

Calculating for the resultant,
R = sqrt ((x²) + (y²))

R = sqrt ((5.4142 mi/h)² + (1.4142 mi/h)²)
R = 5.60 mi/h

Answer: 5.6 mi/h

5 0

2 years ago

The average intensity of the sunlight in Miami, Florida, is 1040 W/m2. What is the average value of the radiation pressure due t

iogann1982 [59]

Answer:

The average value of the radiation pressure due to this sunlight in Miami is 3.467 x 10⁻⁶ N/m²

Explanation:

Given;

the average intensity of the sunlight in Miami, I = 1040 W/m²

the average value of the radiation pressure = ?

Radiation pressure is calculated as;

$Radiation \ pressure = \frac{I *C_R}{C}$

Where;

I is the average intensity of the sunlight

CR is solar radiation coefficient = 1

C is the speed of light = 3 x 10⁸ m/s

$Radiation \ pressure = \frac{I *C_R}{C} \\\\Radiation \ pressure = \frac{1040 *1}{3*10^8} \\\\Radiation \ pressure = 3.467*10^{-6} \ N/m^2$

Therefore, the average value of the radiation pressure due to this sunlight in Miami is 3.467 x 10⁻⁶ N/m²

7 0

2 years ago