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Dimas [21]
3 years ago
14

An Object Speeds Up From 15 m/s to 55 m/s in only 8 s when a force of 100N Is Applied on it. What Is The Mass of the Object?

Mathematics
1 answer:
Kipish [7]3 years ago
6 0

Answer:

500g

Step-by-step explanation:

Because the domula of acceleration is v-u/t so initial velocity is 15 and final velocity is 55 and mass is force * acceleration

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Step-by-step explanation:

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They are your answers.

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A rectangular park is 100 meters long and 70 meters wide. Give the length and width of another rectangular park that has the sam
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Step-by-step explanation:

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I need help with 2 questions please
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Solve the system of equations - 2x - y = 6 and — 7x - y = -4 by combining the equations.​
Artyom0805 [142]

Answer:

(2,-10)

x=2

y= -10

Step-by-step explanation:

To solve by combining the equations we first need to get everything in linear form.

For both equations we can simply just add y to both sides and then subtract the other number on the right side. Doing this gets us

-2x-6=y

-7x+4=y

We then set the two equations equal to each other and solve for y

-2x-6= -7x+4

add 7x and 6 to both sides and get

5x=10

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Use this x value and plug it into any equation

let's do it on the first

-2(2)-y=6

Solve for y and get

-y=10

which means  that

y= -10

6 0
3 years ago
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