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3 years ago

What is the slope of the line?

Physics

1 answer:

coldgirl [10]3 years ago

6 0

(30, 5)
(10, 1)

change of y / change of x
= (30 - 10) / (5 - 1)
= 20 /4
= 5

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The pressure of air pushing down on a house roof is extremely large. Why is the roof not crushed?

Degger [83]

There is still air inside of a house, which is pushing the roof upwards, so the forces are equal and the roof is not crushed.

7 0

3 years ago

a body of a mass 1kg suspended from a spring is found to stretch the spring by 10cm. (A) what is the spring constant? what is pe

Nikitich [7]

Answer:

(A) The spring constant is <u>98 N/m.</u>

(B) The period of oscillation is <u>0.635 s.</u>

Explanation:

Given:

Mass of the body is, $m=1\ kg$

Extension length of the spring is, $x=10\ cm=0.1\ m$

Now, let 'k' be the spring constant.

The force acting on the body is due to gravity only and is equal to its weight.

So, weight of the body is given as:

$F_g=mg\\F_g=1\times 9.8\\F_g=9.8\ N$

Now, we know that for a spring-mass system, the net force acting on the body is equal to the product of the spring constant and extension length. Therefore,

$F_g=kx\\9.8=k(0.1)\\k=\frac{9.8}{0.1}=98\ N/m$

Hence, the spring constant is 98 N/m.

(B)

Period of oscillation of a body of spring-mass system in SHM is given as:

$T=2\pi\sqrt{\frac{m}{k}}$

Plug in the given values and solve for period 'T'. This gives,

$T=2\pi\sqrt{\frac{1}{98}}\\T=2\pi\times 0.101\\T=0.635\ s$

Therefore, the period of oscillation is 0.635 s.

5 0

3 years ago

1. Should water be classified as renewable or nonrenewable? Explain your reasoning.

Alinara [238K]

Answer:

Renewable Resource Hydropower is renewed by the Earth's hydrologic cycle. Water has also been considered renewable, but overpumping of groundwater is depleting aquifers, and pollution threatens the use of many water resources, showing that the consequences of resource use are not always simple depletion.For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf. inexpensive compared to coal ... o Two types of coal—low rank (pollutes more), and high rank.

Explanation:

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3 years ago

Hello, can you help me? I have this question and I don't know how to answer it. Is a tire a conductor or an insulator? Thank you

lana [24]

Answer: They're Conductors.

Explanation:

8 0

3 years ago

Swamps and other wetlands do not offer much value to humans. True or false?

uysha [10]

The statement 'Swamps and other wetlands do not offer much value to humans' is FALSE.

<h3>What are Swamps?</h3>

Swamps and other wetlands are specific ecosystems that are abundant in biodiversity and therefore offer many advantages.

Biodiversity is fundamental to discovering new biotechnological applications and therefore swamps are fundamental for humans.

In conclusion, The statement 'Swamps and other wetlands do not offer much value to humans' is FALSE.

Learn more about swamp diversity here:

brainly.com/question/14619172

#SPJ1

8 0

2 years ago