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2 years ago

1A, 3B, and 7A are examples of __________ on the periodic table.

Physics

2 answers:

SVEN [57.7K]2 years ago

5 0

Answer:

group number

Explanation:

nalin [4]2 years ago

3 0

Answer:

1 A, 3 B, and 7 A are examples of group number on the periodic table.

Explanation:

The table that consists of elements arranged systematically on the basis of atomic numbers is called periodic table. Groups and periods are two important part of a periodic table. A periodic table contains seven horizontal rows, called as periods and 18 vertical columns, called group.

The groups name is given in the form of number and alphabets. It represents the columns present in the periodic table.

Hence, 1 A, 3 B, and 7 A are examples of group number on the periodic table.

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________ In many cartoon shows, a character runs off a cliff, realizes his predicament, and lets out a scream. He continues to s

IrinaVladis [17]

Answer:

Here the source is moving away from the observer so frequency will be smaller than the actual frequency and since the speed is increasing so the frequency is decreasing with time so correct answer is

D) lower than the original pitch and decreasing as he falls.

Explanation:

As we know by the Doppler's effect of sound we have

so we will have

$f = f_o(\frac{v}{v + v_s})$

so here when source moves away from the observer with a some speed then the frequency of the sound observed by the observer is smaller than the actual frequency

Here we know that the speed of the source is increasing with time as the source is falling under gravity

So we can say that the pitch of the sound will decrease with time

4 0

3 years ago

In order for a space shuttle to leave Earth, it must produce a great amount of thrust. Its rocket boosters create this thrusting

bonufazy [111]

Answer:

Orbit

Explanation:

The term that describes motion of the shuttle around earth is called as Orbit.

The orbit is defined as a regular repeating path that object takes around another.

The shuttle circles around the earth at a constant distance from earth surface is because of earth gravity and forward motion of earth.

5 0

3 years ago

What is the weight of a 63.7 kg person?

IRINA_888 [86]

Answer:

A person that weighs 63.7 kg weighs 63.7 kg

Explanation:

Too complicated to explain.

6 0

2 years ago

Read 2 more answers

When waves interfere together and result in a quieter sound is called

Alexus [3.1K]

That is called fully constructive interference.

8 0

3 years ago

Match the following:

labwork [276]

Answer:

iron metal :chromium
machinery part :nickel or chromium
ornamentation and decoration pieces :silver and gold
processed food :tin coated iron can
bridges and automobiles :zinc metal
distilled water:bad conductor

7 0

3 years ago