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2 years ago

1. What types of gas was the first atmosphere made out of?

Physics

2 answers:

sergij07 [2.7K]2 years ago

8 0

17. a sea breeze is a breeze blowing towards the land
18. a land breeze is a breeze blowing towards the sea

alexgriva [62]2 years ago

5 0

Okay fist off is the troposhere, then the 2 layer is the stratosphere, then the mesosphere which has the ozone, the ozone has gas that blocks the suns ray so when the strong waves come from the sun it blocks most of those rays, after the mesosphere we have the thermosphere.

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According to Newton’s first law of motion, if a person is swinging a rock st the end of a string and the string breaks, what wil

balu736 [363]

Travel in a straight path with constant velocity as the rock doesn't want to break its inertial frame.

3 0

2 years ago

A ball was rolling downhill at 2 m/s. After 5s, it was rolling at 90 m/s. What is its acceleration?

olga55 [171]

Answer:

17.6 m/s²

Explanation:

Given:

$v_{f}$ = 90 m/s (final velocity)

$v_{i}$ = 2 m/s (initial velocity)

Δt = 5s (change in time)

The formula for acceleration is:

$a_{avg}$ = Δv / Δt

We can find Δv by doing

Δv = $v_{f}$ - $v_{i}$

Replace the values

Δv = 90m/s - 2m/s

Δv= 88m/s

Using the equation from earlier, we can find the acceleration by dividing the average velocity by time.

$a_{avg}$ = Δv / Δt

$a_{avg}$ = $\frac{88m/s}{5/s}$

acceleration = 17.6 $m/s^{2}$

4 0

1 year ago

How can you use the graph of velocity versus time to estimate the acceleration of the ball?

kenny6666 [7]

Answer: acceleration = slope graph velocity vs time

Explanation: if you have the graph of velocity vs time , the slope of that graph equals the acceleration of our object assuming constant acceleration...but remenber por a real object is really hard to keep constant acceleration

7 0

2 years ago

Read 2 more answers

If an object falling freely were somehow equipped with an odometer to measure the distance it travels, then the amount of distan

ioda

Answer:c

Explanation:

Given

object is falling Freely with an odometer

Suppose it falls with zero initial velocity

so distance fallen in time t is given by

$h=ut+\frac{1}{2}gt^2$