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3 years ago

List some ways houses would be built differently if gravity were much stronger or weaker

2 answers:

4 0

If gravity where much weaker, then the houses wouldnt need as much structural support, and then could be built much more taller as they wouldnt go through as much stress. and if gravity was stronger, buildings would need to be alot more structurally sound and wouldnt be able to maintain a tall structure as the force of gravity would be too much for them. hope i helped :3

Ierofanga [76]3 years ago

3 0

Gravity plays an important role in how we build our houses and structures. If gravity was much weaker on Earth, we would be able to use structures that are not as resistant. Buildings would not have to carry as much weight, which would mean that weaker materials would be able to be used.

On the other hand, much stronger gravity would mean that buildings would have to endure a lot more pressure. Moreover, everything inside the building (furniture, people, etc.) would be heavier, which would require stronger structures.

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Who discovered the flame test

Genrish500 [490]

Answer:

Thomas Melvill

Explanation:

...

6 0

4 years ago

A chemist adds of a iron(III) bromide solution to a reaction flask. Calculate the mass in kilograms of iron(III) bromide the che

vaieri [72.5K]

Answer:

0.246 kg

Explanation:

There is some info missing. I think this is the original question.

A chemist adds 370.0mL of a 2.25 M iron(III) bromide (FeBr₃) solution to a reaction flask. Calculate the mass in kilograms of iron(III) bromide the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

We have 370.0 mL of 2.25 M iron(III) bromide (FeBr₃) solution. The moles of FeBr₃ are:

0.3700 L × 2.25 mol/L = 0.833 mol

The molar mass of iron(III) bromide is 295.56 g/mol. The mass corresponding to 0.833 moles is:

0.833 mol × 295.56 g/mol = 246 g

1 kilogram is equal to 1000 grams. Then,

246 g × (1 kg/1000 g) = 0.246 kg

3 0

4 years ago

True or False: The % abundance of an element's isotopes always totals 100%.

GaryK [48]

Answer:

True

Explanation:

7 0

3 years ago

Read 2 more answers

Nuclear decay is a first-order kinetics process. What is the half-life of a radioactive isotope if it takes 233 minutes for the

-BARSIC- [3]

Answer: The half life of the given radioactive isotope is 43.86 minutes

Explanation:

Rate law expression for first order kinetics is given by the equation:

$k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}$

where,

k = rate constant = ?

t = time taken for decay process = 233 minutes

$[A_o]$ = initial amount of the reactant = 0.500 M

[A] = amount left after decay process = 0.0125 M

Putting values in above equation, we get:

$k=\frac{2.303}{233}\log\frac{0.500}{0.0125}\\\\k=0.0158min^{-1}$

The equation used to calculate half life for first order kinetics:

$t_{1/2}=\frac{0.693}{k}$

where,

$t_{1/2}$ = half-life of the reaction = ?

k = rate constant = $0.0158min^{-1}$

Putting values in above equation, we get:

$t_{1/2}=\frac{0.693}{0.0158min^{-1}}=43.86min$

Hence, the half life of the given radioactive isotope is 43.86 minutes

8 0

3 years ago

Does rimmed steel contain nickel?

madam [21]

Answer: -

Rimmed steel does not contain nickel.

Explanation: -

Rimmed steel is a deoxidised low carbon steel. Deoxidation leads to formation of rims in the iron.

Carbon, sulfur and phosphorus is present in rimmed steel. The concentrations of these vary from the outer rim to the inner rim. It is not as tough as other steel.

Hence it is primarily used for products where a lot of bending is required. Thus Rimmed steel does not contain nickel.

7 0

3 years ago