3 years ago

Order these sounds from loudest (1)

Physics

2 answers:

xz_007 [3.2K]3 years ago

7 0

Answer:

1. Airplane

2. Crowd at sporting

3. Event

4. Rainfall

5. Whisper

amm18123 years ago

7 0

Answer:

Airplane: 1

Whisper: 4

Crowd at sporting event: 2

Rainfall: 3

Explanation:

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In rules for naming a compound you change the negative name to end in" ide" *

Strike441 [17]

Answer:

Single-atom negative ions end in “-ide”, so binary compounds always have this ending. Polyatomic compounds usually end in “-ate” or “-ite”. FORMULAS: Write the positive ion, with its charge, then the negative ion, with its charge.

Explanation:

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3 years ago

A ball is thrown upward. what can be said about the system ?

Liula [17]

That you have thrown a ball with kinetic energy upwards at an increasing velocity rate

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3 years ago

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A school bus moves slower and slower. Using what you have learned about forces, explain why the bus moves slower and slower.

MariettaO [177]

Explanation:

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3 years ago

he atomic radii of Li and O2- ions are 0.068 and 0.140 nm, respectively. (a) Calculate the force of attraction in newtons betwee

Crazy boy [7]

Answer:

$F = -1.07 *10^{-8} \ N$

$F_r = 1.07 *10^{-8} \ N$

Explanation:

Generally the force of attraction between this two irons is mathematically represented as

$F = \frac{k * [Q_{Li} ] * [Q_{O} ] }{ r^2}$

Here k is known as the proportionality constant with value $k = 2.31 * 10^ {-28} J \cdot m$

substituting -2 for $Q_{O}$ i.e the charge on oxygen , +1 for $Q_{Li}$ i.e the charge on Lithium and $[0.140 + 0.068 ] nm= 0.208 nm = 0.208*10^{-9}$ for r