Ask question

Ask question

All categories

adelina 88 [10]

3 years ago

5

Reduce, reuse, recycle! Soft drinks come in aluminum cans that are readily recycled. Storage of empty cans is never a problem, s

ince aluminum cans are easily crushed because they are very A) conductive. B) magnetic. C) malleable. D) soluble.

2 answers:

ryzh [129]3 years ago

8 0

Malleable is correct

natita [175]3 years ago

6 0

They are C, Malleable.

I hope this helps! (:

You might be interested in

a 85 Kg girl, running 1.5 m/s, runs for 2550 seconds. How much force is required to stop her in 5 seconds

adoni [48]

450x force to stop her 5 seconds

3 0

2 years ago

What is the speed of a cheetah that travels 176.4 meters in 4.5 seconds?

Ugo [173]

Answer:

$\boxed{ \bold{ \boxed{ \sf{39.2 \: m/ {s} \: }}}}$

Explanation:

Given,

Distance travelled ( d ) = 176.4 meters

Time taken ( t ) = 4.5 seconds

<u>Finding </u><u>the </u><u>speed </u><u>of </u><u>a </u><u>cheetah</u>

Speed $\sf{ = \frac{distance \: travelled}{time \: taken} }$

$\sf{ = \frac{176.4}{4.5} }$

$\sf{ = 39.2 \: m/ {s} \: }$

------------------------------------------------------------------------

<u>Let's </u><u>learn </u><u>about </u><u>Speed </u> :

Suppose a body moves 20 m in 2 seconds, either on a curved path or on a straight path. So , 10 m is the distance travelled by the body in each second which can be written as 10 m/s. This is called speed of the body. Thus, <u>Speed </u><u>is </u><u>defined </u><u>as </u><u>the </u><u>distance</u><u> </u><u>travelled</u><u> </u><u>per </u><u>unit </u><u>time.</u> It is the rate of distance travelled by a body.

Mathematically,

$\boxed{ \bold{ \sf{speed = \frac{distance \: travelled}{time \: taken} }}}$

In SI system, the unit of distance is metre and time is second. Thus , the <u>SI </u><u>unit </u><u>is </u><u>speed </u><u>is </u><u>m/</u><u>s.</u>

Hope I helped!

Best regards!!

8 0

2 years ago

Which element is classified as an alkali metal?

Alex73 [517]

According to the periodic table, all the elements, except hydrogen, are considered alkaline metals. ie. Li, Na, K, Rb, Cs, Fr.

6 0

2 years ago

When one person shouts at a football game, the sound intensity level at the center of the field is 69.6 dB. When all the people

Ludmilka [50]

Answer:

there are 2188 people at the game

Explanation:

Given the data in the question;

we know that decibel is defined as; dB = 10log(l/l₀)

so if one produces an intensity l₁, it results in 69.6 dB

69.6 = 10log(l₁/l₀) ---- equ1

also. if x number of people produces this intensity, it result to 103 dB

103 = 10log(xl₁/l₀)

103 = 10( log(l₁/l₀) + log(x) )

103 = 10log(l₁/l₀) + 10log(x) ----- equ2

input equation 1 into to equation 2

103 = 69.6 + 10log(x)

10log(x) = 103 - 69.6

10log(x) = 33.4

divide both side by 10

log(x) = 3.34

x = $10^{3.34}$

x = 2187.76 ≈ 2188

Therefore, there are 2188 people at the game

8 0

2 years ago

Jason is swimming in his backyard pool and notices that sounds underwater are different than sounds above water. What best expla

Gre4nikov [31]

Answer: The different speed of sound waves in water and in air

Explanation:

In general, sound (which is a mechanical wave) travels faster in solids than in liquids or gases. This is because the speed of mechanical waves is determined by a relationship between the elastic properties of the medium in which they are propagated and the mass per unit volume of the medium (that is: density).

In other words: The speed of sound varies depending on the medium through which the sound waves travel.

This is why Jason notices that sounds underwater (a liquid medium) are different from sounds above water (a gas medium: air).

4 0

2 years ago