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ELEN [110]
3 years ago
5

2. 2. A drawing that shows the outline of an object is called​

Physics
1 answer:
madreJ [45]3 years ago
4 0
Lineart

Answer: the answer is lineart
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Why is an element considered a pure substance?
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Answer:

An element is a pure substance and is made of only one type of atom.

Explanation:

It cannot be broken down into a simpler substance.

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2 years ago
A 15-kg block at rest on a horizontal frictionless surface is attached to a very light ideal spring of force constant 450 N/m. T
den301095 [7]

Answer:

0.266 m

Explanation:

Assuming the lump of patty is 3 Kg then applying the principal of conservation of linear momentum,

P= mv where p is momentum, m is mass and v is the speed of an object. In this case

m_pv_p=v_c(m_p+m_b) where sunscripts p and b represent putty and block respectively, c is common velocity.

Substituting the given values then

3*8=v(15+3)

V=24/18=1.33 m/s

The resultant kinetic energy is transferred to spring hence we apply the law of conservation of energy

0.5(m_p+m_b)v_c^{2}=0.5kx^{2} where k is spring constant and x is the compression of spring. Substituting the given values then

(3+15)*1.33^{2}=450*x^{2}\\x\approx 0.266 m

7 0
3 years ago
39. A dog runs on a waxed floor at an initial speed of 2 m/s. It slides to a stop with an
Sedbober [7]

Answer:

Explanation:

Use the one-dimensional equation

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0 = 2 + -.43t and

-2 = -.43t so

t = 4.7 seconds

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What is the device used to measure a potential difference in a circuit called?
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A voltmeter is the instrument used to measure a potential difference between two points in an electric circuit
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I think its true for tht one!!

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