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3 years ago

Which invention do you think brought themost dramaic change in peoples lives? (Telephone, automobile, or plane?) Why?

2 answers:

7 0

I think the telephone made a huge impact on people because then you didn't have to walk all to your friend's or family's house to talk to them or give the, some local news

bazaltina [42]3 years ago

5 0

I think the telephone made the most dramatic change in peopels life because that way peope can call there relatives or frineds from a distance instead of driving there or flying there.

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What important role do the rivers play in the southeast

Sunny_sXe [5.5K]

Answer:

They make many state borders, like the Mississippi river, for example. It forms many borders in the East.

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2 years ago

Sarah publicly agrees with her seventh-grade classmates that parents should allow 13-year-olds to date. Later that day, she writ

Nat2105 [25]

Answer is normative social influence.
Reason

Normative social influence is where a person conforms to fit in with the group because they don't want to appear foolish or be left out. Normative social influence is usually associated with compliance, where a person changes their public behavior but not their private beliefs.

4 0

1 year ago

Complete the chart comparing the powers and responsibilities of the three branches of the federal government. then write a short

lakkis [162]

RESPONSIBILITIES executive branch: Enforcing the laws.
Legislative branch: make the laws.
Judicial branch: Limit the powers of the other branches of government.

POWERS executive branch: Being able to veto, or reject a proposal for a law.
Legislative branch: Passing laws.
Judicial branch: Judicial review.

I'm just missing checks on other powers, sorry, I hope this helps.

3 0

2 years ago

Egbert is a quiet child who is very slow to adapt to change. However, if he is introduced gradually to new people or situations,

frozen [14]

Answer:A slow to warm up

Explanation: this is the child that even though they are slow to react to situations or they are not active at all times .

They have a very slow reaction to change however when they get exposed to situations that can change them they can slowly adapt and change gradually.

From this text Egbert is that child who is slow however he reacts to a gradual change and warms up to it.

5 0

2 years ago

How fast must an object move before its length appears to be contracted to one-half its proper length?

notsponge [240]

The object must move with the speed of $\frac{\sqrt{3} }2}$ times to approximately seeing that it is contracted to exactly half of its actual length.

<h3>How is this calculated?</h3>

The length contraction experimented by the object as it approaches lightspeed, in meters per second, is described by Lorentz contraction formula:

$\frac{L}{L'} = \sqrt{(1) - (\frac{v}{c})^{2}$

Here, v is the current speed m/s

c is the speed of light in m/s

L' is the length of the object at rest in m

L is the length of the object at the current speed in m

Now we know that

$\frac{L}{L'}= \frac{1}{2}$ and $\frac{v}{c} = r$ then,

$\frac{1}{2} = \sqrt{1 - r^{2} }\\\frac{1}{4} = 1 - r^{2}\\r^{2} = \frac{3}{4}$

Hence, r = $\frac{\sqrt{3} }{2}$

Therefore, the answer is the object must travel at a speed of $\frac{\sqrt{3} }{2}$ times the lightspeed to be contracted to one-half its proper length.

To know more about the Lorentz contraction formula, visit:

brainly.com/question/17407131

#SPJ4

7 0

1 year ago