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3 years ago

How is steam foremed

2 answers:

4 0

Steam is water in the gas phase, which is formed when water boils. Steam is invisible; however, "steam" often refers to wet steam, the visible mist or aerosol of water droplets formed as this water vapour condenses.
hope this helps plz give brainliest!

bearhunter [10]3 years ago

3 0

Steam is formed by the heating of water. When water gets too hot is forms into steam and rises into the air until it becomes cold enough to fall back down to the earth.

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Era that we live in 1. precambrian time 2. mesozoic 3. paleozoic 4. cenozoic

guajiro [1.7K]

I believe we live in the Cenozoic era

We live in the Holocene Epoch, of the Quaternary Period, in the Cenozoic Era (of the Phanerozoic Eon).

8 0

3 years ago

The curved path traveled by a thrown baseball is known as what?

musickatia [10]

Projectile motion.

hope this helps!

-Payshence

6 0

4 years ago

Antimony consists of two major isotopes with the following atomic masses: 121Sb (120.904 amu) and 123Sb (122.904 amu). The avera

Bad White [126]

Answer:

121Sb=57.2%

123Sb=42.8%

Explanation:

We are given that

Atomic mass of 121Sb=120.904 amu

Atomic mass of 123Sb=122.904 amu

Average atomic mass of antimony=121.760 amu

We have to find the percent of each of the isotope.

Let x be the percent of 121Sb and 1-x be the percent of 123Sb.

Using formula of average atomic weight

Average atomic weight=atomic weight of 121Sb $\times$ percentage abundance of isotope 121Sb+atomic weight of 123Sb $\times$ percentage abundance of isotope 123Sb

Substitute the values

$121.760=120.904x+122.904(1-x)$

$121.760=120.904x+122.904-122.904x$

$121.760=-2x+122.904$

$2x=122.904-121.760$

$2x=1.144$

$x=\frac{1.144}{2}=0.572$

Percentage of 121Sb= $0.572\times 100=$ 57.2%

Abundance of isotope 123Sb=1-0.572=0.428

Percentage of isotope 123Sb= $0.428\times 100=$ 42.8%

7 0

4 years ago

Fig. 2.1 shows a train

Vitek1552 [10]

Answer:

$\mathrm{(a)\:}32,000,000\:\mathrm{Ns},\\\mathrm{(b)\:}390,000\:\mathrm{N}$

Explanation:

The impulse-momentum theorem states the impulse on an object is equal to the change in momentum of that object. Momentum is given by $p=mv$ . Since mass is constant, the train's change in momentum is:

$\Delta p=m\Delta v=750,000\cdot42=31,500,000=\fbox{$32,000,000\:\mathrm{Ns}$}$ (two significant figures).

Impulse is also given as $\Delta p = F\Delta t$ , where $F$ is the average force applied and $\Delta t$ is change in time. Since $t$ is given as $80\mathrm{s}$ , we have the following equation: