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3 years ago

13

Which feature causes a gap in the geologic record?

2 answers:

kaheart [24]3 years ago

8 0

Answer:

The answer is Extrusion

Explanation:

Lisa [10]3 years ago

7 0

Answer:

A

Explanation:

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What is physics? In your own words too

denis23 [38]

The study of how the world works

4 0

3 years ago

An ice sled powered by a rocket engine starts from rest on a large frozen lake and accelerates at 12.8 m/s2 . At t1 the rocket e

Simora [160]

Answer:4.39 s

Explanation:

Given

initial velocity $u=0$

acceleration $a=12.8 m/s^2$

velocity acquired by sled in $t_1$ time

$v=0+at$

$v=12.8t_1$

distance traveled by sled in $t_1 s$

$v^2-u^2=2as$

$(12.8t_1)^2-0=2\times 12.8\times s_1$

$s_1=6.4\cdot t_1^2$

distance traveled in $t_2$ time with velocity $v=12.8t_1$

$s_2=v\times t_2$

$s_2=12.8\times t_1\times t_2$

$s_2=12.8\cdot t_1\cdot t_2$

$s_1+s_2=5.37\times 10^3$

$6.4t_1^2+12.8t_1t_2=5370$ ----1

$t_1+t_2=97.7 s$

$t_2=97.7-t_1$

substitute the value of $t_2$ in 1

we get

$6.4t_1^2-1250.56t_1+5370=0$

thus $t_1=\frac{1250.56-1194.33}{12.8}=4.39 s$

$t_1=4.39 s$

5 0

3 years ago

Select the correct location on the image.

slega [8]

Answer:

orange line

Explanation:

it is the only straight line that makes sense. curved lines imply velocity changed. and the completly flat green line implies the vehicle didn't move since its position value stayed the same. must be the downward pointing orange line

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2 years ago

A 20 gram bullet exits the rifle at a speed of 985 m/s. The gun barrel is 0.8 m long. What

borishaifa [10]

Answer:

trick question u said bullet and rocket

Explanation:

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2 years ago

Describe two of Tesla's inventions that influenced<br> technology and are still in use today.

victus00 [196]

The remote control, and wireless transmissions

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2 years ago