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fredd [130]
2 years ago
15

Which comparison is not correct? 8>-9 -7 >-9 10-8<-4 -2<-9

Mathematics
2 answers:
Ede4ka [16]2 years ago
8 0

Answer:

B is the wrong one

Step-by-step explanation:

-7 is less than -9

Studentka2010 [4]2 years ago
3 0

Answer:

-2 < -9

Step-by-step explanation:

8 > -9

true

-7 > -9

true

-8 < -4

true

-2 < -9

false

Hope this helps!

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A 3.0-kg ball moving eastward at 4.0 m/s suddenly collides with and sticks to a 5.0-kg ball moving northward at 3.0 m/s. what is
vesna_86 [32]

Magnitude of the momentum of this system just after the collision = 19.2Kgm/s

<h3>What is law of conservation of momentum?</h3>

Law of conservation of momentum states that the total momentum after the collision must be equal to the total momentum before the collision.

The momentum of each ball is given by:

p = mv

where m is the mass of the ball and v its velocity.

The momentum of ball 1 is:

p = mv

= (3.0 kg)(4.0 m/s)

= 12.0 kg m/s in the eastward direction

The momentum of ball 2 is:

p = mv

= (5.0 kg)(3.0 m/s)

= 15.0 kg m/s in the northward direction

The two momenta are in perpendicular directions, so the magnitude of the total momentum can be found as:

p = \sqrt{p1^{2} +p2^{2} }

p = \sqrt{12^{2} +15^{2} }\\p = \sqrt{144 + 225} \\p = \sqrt{369}\\ p = 19.2 kgm/s

and due to the law of conservation of the momentum, this is also equal to the total momentum after the collision.

To learn more about law of conservation of momentum from the given link

brainly.com/question/12773641

#SPJ4

6 0
1 year ago
What is the rate of change of the function described in the table? ​
stira [4]

Answer:

It’s 5

Step-by-step explanation:

4 0
2 years ago
Homework is boring ..... ugh
Vladimir [108]

Answer:

Yes, it is.

Step-by-step explanation:

ALSO, YO THANK YOU FOR GETTING ME TO GENIUS.

8 0
2 years ago
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. Jessica went to the grocery store and purchased a box of cereal for $3.75, milk for $1.50, and bread for $2.25. She paid with
puteri [66]
$3.75 - cereal
$1.50 - milk
$2.25 - bread
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She received $12.50 back
4 0
3 years ago
Write an ordered pair for each point graphed below.
Viefleur [7K]

Answer:

\boxed{(-1,4)}

Step-by-step explanation:

The point is located in Quadrant II of the graph, where x-values are negative and y-values are positive.

Each marking on the graph represents one unit of distance. The two <em>axes</em> meet at the origin, where the coordinate point is equal to (0,0).

So, you can count backwards once from the origin to get your x-value ⇒ -1 and count up upwards four times from x=-1 to get your y-value ⇒ 4.

Finally, place these in a coordinate point (x,y) ⇒ \boxed{(-1,4)}.

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