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Angelina_Jolie [31]

3 years ago

14

Electromagnetic and mechanical waves have different characteristics that make them advantageous for certain applications. Select

the reasons that mechanical waves, such as ultrasound, are used for soft tissue imaging and to identify fractures in metals

1 answer:

Minchanka [31]3 years ago

6 0

Can u give options if its not to late

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Convert 1 mm to meters using scientific notation. Include units in your answer.

irinina [24]

Answer: The answer in scientific notation with the unit included is (1 × 10^-3m.)

Explanation:

In the field of physics, when working with too large or too small numbers, such can be expressed with the use of scientific notation. This helps to eliminate huge or ambiguous numbers with significant units. It is written is such a way that the first number is greater than or equal to 1 and less than 10 which is then multiplied by a factor of 10.

Units are symbols that are used to represent a measurement For example the unit of meters is (m).

Converting 1mm to m:

1000millimeters = 1meter

1 millimetre = X

Making X the subject of formula,

X = 1 ×1 /1000

X = 0.001m

Therefore expressing X in scientific notation is

1 × 10^-3meter (m)

7 0

3 years ago

The largest single publication in the world is the 1112-volume set of British Parliamentary Papers for 1968 through 1972. The co

Marat540 [252]

Answer:

$m_l=550\ kg$ is the mass of librarian.

Explanation:

Given:

mass of the system, $m_s=3.3\times 10^{3}\ kg$

velocity of librarian relative to the ground, $v_l=2.5\ m.s^{-1}$

velocity of the cart relative to the ground, $v_c=0.5\ m.s^{-1}$

N<u>ow using the principle of elastic collision:</u>

Net momentum of the system is zero.

$m_l\times v_l=(3300-m_l)\times v_c$

$m_l\times 2.5=(3300-m_l)\times 0.5$

$m_l=550\ kg$ is the mass of librarian.

6 0

3 years ago

Read 2 more answers

How can we change the frequency of the wave

olga nikolaevna [1]

Answer:

.Also we can change the frequency by decreasing wavelength , or increasing velocity

Explanation:

5 0

2 years ago

Homeowners will typically have their heaters set for about 140 degrees F. What is that temperature in C.

lana [24]

It would be 60 degrees Celsius:)

6 0

3 years ago

PLEASE HELP: Which of the following procedures describes how you could best test the hypothesis that a crumpled piece of paper f

Mariulka [41]

Answer:

A because it is the most affective way to do it

Explanation:

7 0

4 years ago