3 years ago

What is ultrasound ?

2 answers:

7 0

An ultrasound is a scan of a pregnant womens stomach, to see the baby. Typically they do this to see if the baby is healthy and okay.

Lostsunrise [7]3 years ago

6 0

Ultrasound is an imaging test that uses sound waves to create a picture

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Describe the main differences between the composition of Earth and that of the Sun.

kakasveta [241]

Answer: The earth is comprised of silicate materials as well as metals. The amount of gas is less here because of its location near to the sun. Due to its relative high surface temperature, the gases such as hydrogen and helium gets evaporated and disappears.

Whereas the sun is entirely comprised of hydrogen and helium gas, of which hydrogen is the dominant one. It has an extremely high temperature of about 5500°C.

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3 years ago

URGENT!!!!!!!!!: If an electromagnetic wave has a frequency of 6 x 10^5 Hz, what is its

lara31 [8.8K]

Answer:

Explanation:

because the speed divide by the frequency is equal to the wavelength(in meters)

5×10² m