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zepelin [54]
3 years ago
10

A bullet of mass m1 = 0.020 kg is fired with initial speed v1 into a block of mass m2 = 0.500 kg that is initially at rest. The

bullet becomes embedded in the block and the pair slide along to the right a distance d= 0.35 m over a rough surface with uk = 0.25. the spring (with k = 450 N/m) is compressed by a distance of x = 0.075 m. work backwards and determine the initial velocity of the bullet.
Mathematics
1 answer:
kari74 [83]3 years ago
4 0
The answer wii ph hold be 147
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Dafna11 [192]

hey there

the answer is

220

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SAVAGELEGEND72

6 0
3 years ago
2y = x + 3 5y = x - 7 What is the solution set of the given system?
prohojiy [21]
<span>2y = x + 3 then x = 2y - 3
5y = x - 7 then x = 5y + 7

so 
</span>2y - 3 = 5y + 7
2y - 5y = 7 + 3
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y = -10/3
y = -3 1/3

<span>2y = x + 3
</span>2 (-10/3) = x + 3
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-29/3 = x
-9 2/3 =x
or
x = -9 2/3

solutions: x = -9 2/3 and y = -3 1/3

5 0
3 years ago
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What is value of x? <br> See picture
morpeh [17]

Answer:

x = 71

Step-by-step explanation:

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The sum of the 3 angles in the triangle = 180°, so

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6 0
3 years ago
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I am not sure on how to do this ​
sweet [91]

Answer:

CP = 8 cm

Step-by-step explanation:

Given two chords that intersect inside a circle, then then the product of the parts of one chord is equal to the product of the parts of the other chord, that is

DP × CP = AP × PB ← substitute values

6 × CP = 12 × 4

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CP = 8

8 0
3 years ago
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Simple 3c-9d+7c+5d<br> Please help me
timama [110]
I believe 10c-4d would be your answer
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3 years ago
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