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3 years ago

What is one way that scientists could try to determine if the Rocks are residual (from the area) or transported from far away?

1 answer:

4 0

Erosion is one way that scientists could try to determine if the Rocks are residual (from the area) or transported from far away

<u>Explanation:</u>

Erosion is the process in which the waste or broken parts of the rocks are taken or transported from one place and deposited on the other place. This process takes place through air, water or ice.

Scientists study the process of erosion in-depth to determine the movement of sediments from one place to another. After erosion immediately deposition takes place. Whatever is eroded has to be deposited somewhere. Erosion always takes place on the surface of the earth.

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Two loudspeakers are placed side by side and driven by the same source at 500 Hz. A listener is positioned in front of the two s

Oliga [24]

Answer:

0.68 m

Explanation:

We know that the speed of sound in air is a product of frequency and wavelength. Taking speed of sound in air as 340 m/s

V=frequency*wavelength

Then wavelength is given by 350/500=0.68 m

Therefore, to repeat constructive interference at the listener's ear, a distance of 0.68 m is needed

4 0

3 years ago

Determine the COP. for this thermodynamic refrigerator

Dennis_Churaev [7]

Answer:

Explanation:

The efficiency of a refrigerator is defined in the terms of coefficient of performance (COP).

The ratio of amount of heat in cold reservoir to the work done is termed as the COP.

COP = QL / W

COP = T2 / (T1 - T2)

Where, T1 be the temperature of hot reservoir, T2 be the temperature of cold reservoir.

6 0

3 years ago

If b humans cannot see ultraviolet waves how can ultraviolet light be used to gather evidence of a crime?

Inga [223]

I don’t know because it’s very difficult

6 0

3 years ago

What units would you use to measure a red blood cell ? (nanometers micrometers millimeters

Stels [109]

Viruses are infectious particles made of nucleic acid (DNA or RNA) and protein. Viruses are 100 times smaller than the size of bacteria.

4 0

3 years ago

Read 2 more answers

An amateur astronomer grinds a double convex lens whose surfaces have radii of curvature of 40 cm and 60 cm. The glass has an in

DedPeter [7]

Answer:

44.4cm

Explanation:

glass has an index of refraction .n = 1.54

radii of curvature of 40 cm R1 = 40 by

radii of curvature of 600 cm R2 = 60

Now, by lens maker formula

1/f = (n - 1) (1/R1 - 1/R2)

Putting in the given values for n = 1.54 , we get f = 22.2

$\frac{1}{f} = (1.54 -1) (\frac{1}{40cm} -\frac{1}{(-60cm)} )$

$\frac{1}{f} = 0.0225$

f = 1 / 0.0225

f = 44.4cm

so, focal length in air will be = 44.4 cm

6 0

3 years ago