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Thepotemich [5.8K]
3 years ago
12

Two crates, one heavy and one light, are at rest on a waxed floor. Which crate will need the greater force to give the same chan

ge in speed? Explain.
Chemistry
2 answers:
otez555 [7]3 years ago
4 0
The heavy one because mass times force is equal to speed. The lighter one has less mass to it goes faster without as much effort. I hope that helps!
Setler [38]3 years ago
4 0

Explanation:

Force is defined as the multiplication of mass and acceleration.

Mathematically,        F = m × a

where              m = mass

                        a = acceleration

This relation clearly indicates that force is directly proportional to mass. That is more is the mass of an object more will be the force required to move the object from its initial position.

Hence, we can conclude that heavy crate will need greater force to give the same change in speed.


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An indicator is_____ Select all that apply.
crimeas [40]

Answer: C

Explanation:

Indicators are organic weak acids or bases with complicated structures.

5 0
3 years ago
What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?
ivanzaharov [21]

CH₄ + 2O₂ → CO₂ + 2H₂O

From the equation, we know that methane and carbon dioxide have the same number of moles.

no. of moles = \frac{mass}{molar mass}

no. of moles of CO₂ produced = no. of moles of methane

= 4.5 × 10⁻³ ÷ (12 + 1×4)

= 2.8125 × 10⁻⁴

∴ mass of CO₂ = 2.8125 × 10⁻⁴ × (12 + 16×2)

= 12.375 × 10⁻³ g

4 0
3 years ago
2C4H10+13o2= 8CO2+10H2O
Gennadij [26K]

Answer:

your answer will be between 16-17 moles

Explanation:

The combustion of butane is 2 C4H10 + 13 O2 = 8 CO2 + 10 H2O. Every two moles of C4H10 can produce 10 moles of water,

5 0
3 years ago
PLEASE HELP FAST!!!! Which of the following is NOT an intensive physical property?
Zarrin [17]
Volume is an extensive physical property and not an intensive one.
7 0
3 years ago
Read 2 more answers
7.) A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To
marysya [2.9K]

Answer:

T₂ = 721 k

Explanation:

Given data:

Initial volume = 285 mL

Initial pressure = 1.88 atm

Initial temperature = 355 K

Final temperature = ?

Final volume = 435 mL

Final pressure = 2.50 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₁V₁/T₁ = P₂V₂/T₂  

T₂  =  P₂V₂ T₁  / P₁V₁

T₂ = 2.50 atm × 435 mL × 355 K / 1.88 atm × 285 mL  

T₂ = 386062.5 atm. mL. K /535.8 atm. mL

T₂ = 721 k

5 0
3 years ago
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