2 years ago

Explain the main difference between mixtures and compounds

1 answer:

8 0

The different substances are not chemically joined together. Each substance in themixture, keeps its own properties. The compound has properties different from the elements it contains. Each substance is easily separated from the mixture.

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Bob and John are pulling in different directions. If Bob is pulling to the right with a force of 10N, and John is pulling to the

kykrilka [37]

Answer:

A) -2N

B) Left

C) -0.5

Explanation:

A) -12 + 10

B) More force is acted on in that direction

C) Net force/Mass (-2/4)

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2 years ago

The temperatures (in degrees Fahrenheit) in Long Island recorded by the weather bureau over a week were 42, 49, 53, 55, 50, 47,

lora16 [44]

Answer:

Inter Quartile Range

Explanation:

Quartile is a positional statistical average, which divided the data into 4 equal halves.

Q1 (Lower Quartile) has 25% data below it, 75% above it. Q3 (Upper Quartile) has 75% data below it, 25% above it.

Interquartile range is the measure used to calculate how far the lower & upper quartiles are.

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2 years ago

What fuel does a main-sequence star use for nuclear fusion?

prohojiy [21]

Answer:

A main sequence star is powered by fusion of hydrogen into helium in its core

Explanation:

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1 year ago

A rocket initially at rest accelerates at a rate of 99.0 meters/second2. Calculate the distance covered by the rocket if it atta

dezoksy [38]

Vi = 0m/s
A = 99m/ $s^{2}$
Vf = 445m/s
T = 4.5s
D = ?

D = Vi(t) + 1/2(a)(t²)
D = 0m/s ( 4.5s) + 1/2(99m/s²)(4.5s)²
D = 1002 m
D = 1 x 10³ m

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2 years ago

Identify the number of significant figures for the following values: a. 72.1 b. 4,525.25 c. 1.999

Elina [12.6K]

1. 3 significant figures

2. 6 significant figures

3. 4 significant figures

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2 years ago