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Lisa [10]
3 years ago
11

The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the

spring stretches 9 centimeters. Which equation relates the mass of the object, m, and the length of the spring, s?
Mathematics
2 answers:
Rom4ik [11]3 years ago
8 0
M/s=30/9 =10/3

so, 3m=10s
Scrat [10]3 years ago
5 0

Answer:

s =  (3 cm)/(10 g)*m

Step-by-step explanation:

The length of a spring varies directly with the mass means that the equation has the next form: s = k*m, where m refers to the mass of the object and s refers to the length of the spring. If a 30-gram object is attached, the spring stretches 9 centimeters, then:

s = k*m

9 cm = k*30 g

(9 cm)/(30 g)  = k

(3 cm)/(10 g)  = k

Therefore, the equation is s =  (3 cm)/(10 g)*m

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Answer:

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Step-by-step explanation:

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substituting (1) in (2)

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substituting (3) in (1)

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6 0
3 years ago
Akira receives a prize at a science fair for having the most informative project. Her trophy is in the shape of a
AlekseyPX

Answer:

45 square inches

Step-by-step explanation:

Akira receives the prize at the science fair for having the most informative project her trophy is in the shape of a square pyramid and is covered in shiny gold foil how much gold foil did it take to cover the trophy including the bottom

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=3^2

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The surface area of the side triangles

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Side length=3 in

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substituting the values,

The area of the triangle =1/2*3*6

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3 years ago
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Answer:

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Step-by-step explanation:

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Read 2 more answers
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