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3 years ago

The one star that does not appear as a small point of light is called

Physics

1 answer:

seraphim [82]3 years ago

5 0

The sun. lol. It is closer to Earth, therefore bigger to us, and not just a small point of light.

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Zanzabum

Tires aren't made from pure rubber because it makes the weight higher which increases the engine load.

This is defined as a piece of rubber which is attached to the wheels of automobiles for movement.

Pure rubber isn't used to make tyres because it has a higher weight which increases the engine load thereby making the vehicle slower.

Read more about Tyre here brainly.com/question/24332515

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2 years ago

Martine also has an eraser.it has a mass of 3g,and a volume if 1cm3.what is its density

shtirl [24]

Answer:

3g/cm³

Explanation:

<em>Use the formula:</em>

density = mass ÷ volume

<em>Substitute (plug in) the values:</em>

density = 3 ÷ 1 = 3g/cm³

4 0

3 years ago

During an experiment a student records the net horizontal force exerted on an object moving in a straight line along a horizonta

xeze [42]

Answer:c 40kg

Explanation:

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3 years ago

The burning rates of two different solid-fuel propellants used in aircrew escape systems are being studied. It is known that bot

Katena32 [7]

Answer: $z_{\text{calc}}=-0.32$

Explanation:

The test statistic for difference of two population means :-

$z=\dfrac{\mu_1-\mu_2}{\sigma\sqrt{\dfrac{1}{n_1}+\dfrac{1}{n_2}}}$

Given : $\sigma=\sigma_1=\sigma_2=3$

$n_1 = n_2 = 20$

$\mu_1=23.7$

$\mu_2=24$

Then , $z=\dfrac{23.7-24}{(3)\sqrt{\dfrac{1}{20}+\dfrac{1}{20}}}$

$\Rightarrow\ z=-0.316227766017\approx-0.32$

Hence, the value of $z_{\text{calc}}=-0.32$

5 0

4 years ago

8. What is the law of conservation of energy? Give at least one example.

Sav [38]

It states that energy neither be created nor be destroyed.energy may only be transform from one form to another. example mechanical energy= ek + ep

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3 years ago