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3 years ago

True or False. If statement is false, change the word in parentheses to make it true.

Physics

1 answer:

xz_007 [3.2K]3 years ago

6 0

False

Explanation:

Loudness is the human perception of sound intensity and not pitch. Pitch is a property of waves.

Loudness measures the intensity of sound to the hear and the frequency is often expressed in decibels.

Pitch is how high or low a note is being played.
It is a property that makes it to judge whether sounds are high or low.
Loudness on the other hand is depends on the human perception of how high or low sound is to a person.

learn more:

Amplitude of sound waves brainly.com/question/2845448

#learnwithBrainly

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Perform the indicated math on the two vectors: (23, 13) minus (34∠-37°)

vovikov84 [41]

(23-34,13--37)
(-11,13-37)
(-11,50)
Hope that helps

3 0

3 years ago

Read 2 more answers

2 a A pile of 60 sheets of paper is 6 mm high. Calculate the average thickness of a sheet of the paper.

fiasKO [112]

The average thickness of a sheet of the paper is 0.1 mm.

The number of ice blocks that can be stored in the freezer is 80 blocks of ice.

<h3>Average thickness of a sheet of the paper</h3>

The average thickness of a sheet of the paper is calculated as follows;

average thickness = 6 mm/60 sheets = 0.1 mm /sheet

Thus, the average thickness of a sheet of the paper is 0.1 mm.

<h3>Volume of each block of ice</h3>

Volume = 10 cm x 10 cm x 4 cm

Volume = 400 cm³

<h3>Volume of the freezer</h3>

Volume = 40 cm x 40 cm x 20 cm = 32,000 cm³

<h3>Number of ice blocks that can be stored</h3>

n = 32,000 cm³/400 cm³

n = 80 blocks of ice

Thus, the number of ice blocks that can be stored in the freezer is 80 blocks of ice.

Learn more about average thickness here: brainly.com/question/24268651

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6 0

1 year ago

The initial concentration of N2O4 is 0.45M The system is heated and allowed to reach equilibrium. At equilibrium concentration o

Damm [24]

Answer : The value of equilibrium constant $K_c$ for the following reaction will be, 2.4

Explanation : Given,

Initial concentration of $N_2O_4$ = 0.45 M

Equilibrium concentration of $NO_2$ = 0.30 M

$K_c$ is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The given balanced equilibrium reaction is,

$N_2O_4(g)\rightleftharpoons 2NO_2(g)$

As we know that the concentrations of pure solids are constant that means they do not change. Thus, they are not included in the equilibrium expression.

Actual concentration of $NO_2$ at equilibrium = $2\times 0.30M=0.6M$