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Furkat [3]
3 years ago
10

What has more force? A semi truck traveling at 60mph or a minivan traveling at 60mph?

Chemistry
2 answers:
Tems11 [23]3 years ago
8 0

Answer:

Minivan.

Explanation:

The answer seems like an obvious pick for the semi truck, but it's most likely the minivan. Let's compare them like this;

Let's say a 5'10, 160 pound man tackles you. His wide-spread body is hitting you all at once. Or the semi truck comparison. The hit is spread out and it has more weight along with it.

Now, the same guy punches you in your stomach. The punch will most likely hurt more because it's more concentrated on one spot. That's the minivan comparison. The minivan, being smaller, can only concentrate on one spot of the victimized target.

The semi truck may destroy it worse than the minivan, yes, but the minivan will have more force against the object due to the one concentrated point instead of the hit being spread out along the entire target.

Sometimes, the semi truck may be a greater foe, but the minivan would apply more force in more situations.

hodyreva [135]3 years ago
5 0

Answer:

Semi truck

Explanation:

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If have a volume of 18 L of a gas at a temperature of 272 K and a pressure of 90 atm, what will be the pressure of the gas if ra
Solnce55 [7]

Answer:

P₂ ≅ 100 atm (1 sig. fig. based on the given value of P₁ = 90 atm)

Explanation:

Given:

P₁ = 90 atm                    P₂ = ?

V₁ = 18 Liters(L)              L₂ = 12 Liters(L)      

=> decrease volume => increase pressure

=> volume ratio that will increase 90 atm is (18L/12L)                                                                  

T₁ = 272 Kelvin(K)          T₂ = 274 Kelvin(K)

=>  increase temperature => increase pressure

=> temperature ratio that will increase 90 atm is (274K/272K)

n₁ = moles = constant    n₂ = n₁ = constant

P₂ = 90 atm x (18L/12L) x (274K/272K) = 135.9926471 atm (calculator)

By rule of sig. figs., the final answer should be rounded to an accuracy equal to the 'measured' data value having the least number of sig. figs. This means P₂ ≅ 100 atm based on the given value of P₁ = 90 atm.

3 0
2 years ago
If a neutral compound is composed of carbon and hydrogen and you know that it has exactly 2 carbons connected by a double bond,
Ivahew [28]

Answer:

B. 8

Explanation:

because I learned that in 6th

3 0
3 years ago
Calculate the density of a rectangular solid which has a mass of 25.71. it is 2 30cm long, 4.01 cm wide, 1.82 cm high
den301095 [7]
<span>Mass=25.7gm dimensions, l=2.3cm b=4.01cm h=1.82cm Thus,Density=Mass/Volume=m/lbh=25.7/2.3*4.01*1.82 g cm-3</span>
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3 years ago
An aqueous solution of glucose has molality of 6.81 and a density of 1.2 g/ml what is the molarity of glucose in the solution
andriy [413]

Answer:

the molarity is 3.68 moles/L

Explanation:

the molality of the solution of sucrose is

m= moles of glucose / Kg of solvent (water)= 6.81 ,

since the molecular weight of glucose is 180.156 gr/mole , then per each kilogram of solvent there is

6.81 moles*180.156 gr/mole + 1000 gr of water = 2226.86 gr of solution

from the density

volume of solution = mass of solution/density = 2286.86 gr / 1.2 gr/ml = 1855.71 ml

therefore there is 1000 gr of water in 1855.71 ml

then the molarity M is

M= moles of glucose / L of solution = (moles of glucose /  Kg of solvent) *  (Kg of solvent/L of solution) = 6.81 moles/Kg * 1Kg/1.85 L = 3.68 moles/L

M= 3.68 moles/L

Note:

- Would be wrong in this case to assume density of water = 1 Kg/L since the solution is heavily concentrated in glucose and therefore the density of water deviates from its pure value.

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3 years ago
Suppose much of an old forest will be used for farmland. A certain portion of the land will be set aside as wildlife habitat. Yo
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Answer:

A certain portion of the land will be set aside as wildlife habitat

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1 year ago
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