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3 years ago

13

About how often do major extinction events seem to occur?

1 answer:

neonofarm [45]3 years ago

5 0

Im pretty sure people will be extinct soon becuz of the viruse thingy but here is the answer:

The extinction event happens periodically about ~65 Million Years~

(How long were humans living by now??)

Anyways hope this helps!

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Brainly admins keep deleting these things. So here are some points.

m_a_m_a [10]

Answer:

i know right thx

Explanation:

5 0

3 years ago

Read 2 more answers

Who are some of the groups or individuals that might kill a bill and keep it from becoming law?

sesenic [268]

Presidential vetoes, some people from senate or the house of representatives might kill a bill and keep it from becoming law.

<u>Explanation:</u>

When a bill gets vetoed by the president, then the bill goes back to the congress. The congress for getting the bill passed has to over ride the bill by getting at least a majority vote of two thirds.

But the over riding of the veto is very difficult because getting so many votes in majority is very tough. So if the over riding does not take place, the bill dies and does not become a law.

8 0

3 years ago

if a woman in a plane waiting to parachute is 3,940m high and has a mass of 70kg,what is her gravitational potential energy (gpa

LiRa [457]

Answer:

$\boxed {\boxed {\sf 2,702,840 \ Joules }}$

Explanation:

The gravitational potential energy can be found using the following formula

$E_p=m*g*h$

Where <em>m</em>= mass, <em>g</em>= gravitational acceleration, and <em>h </em>= height.

We know the the mass of the woman is 70 kilograms and the height is 3,940 meters

If we assume this parachute is on Earth, then the gravitational acceleration is 9.8 m/s²

$m= 70 \ kg \\h= 3,940 \ m \\g= 9.8 \ m/s^2$

Substitute the values into the formula.

$E_p= (70 \ kg) (9.8 \ m/s^2)(3,940 \ m)$

Multiply the first two numbers first.

$E_p=686 \ kg*m/s^2 (3,940 \ m )$

1 kg*m/s² is equal to 1 Newton. Therefore, the first number (686 kg*m/s²) is also equal to 686 Newtons

$E_p=686 \ N (3,940 \ m)$

Multiply again.

$E_p= 2702840 \ N*m$

1 Newton meter is equal to 1 Joule. So, our answer of 2702840 N*m is equal to 2702840 J

$E_p=2702840 \ J$

The potential energy of the women is<u> 2,702,840 Joules </u>

5 0

3 years ago

Helpy!!!!!!!! after you answer I'll do anything for you, just ask for it.

loris [4]

Answer:

I think It's option C

Explanation:

But I'm not sure It's correct or not

I hope It's helpful

6 0

3 years ago

A sink has two faucets: one for hot water and one for cold water. The sink can be filled by a cold water faucet in 4 minutes. If

mojhsa [17]

Answer:

Given:

Cold water faucet fills the sink in 4 minutes.

Both faucets fills the sink in 3 minutes.

Let us assume that "t" be the time it takes hot water faucet in order to fill the sink.

Therefore;

<em>Rate for hot water faucet fills the sink = $\frac{1}{time}$ = $\frac{1}{t}$ </em>

<em>Rate at which cold water faucet fills the sink = $\frac{1}{time}$ = $\frac{1}{4}$ </em>

When both faucets are used , the rate at which they fill the sink is given as :

<em> $\frac{1}{t}$ + $\frac{1}{4}$ = $\frac{1}{3}$ </em>

On solving the above equation, we get :

<em> $4t = 3t +12$ </em>

<em>∴ $t = 12\ minutes$ </em>

<em>Therefore, it takes 12 minutes for the hot water faucet to fill the sink.</em>

<em></em>

7 0

3 years ago