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LUCKY_DIMON [66]
3 years ago
9

Calculate the speed of a 3.5cm sound wave of frequency 8000Hz

Physics
2 answers:
LuckyWell [14K]3 years ago
8 0
The answer to this question is 2400Hz
Ganezh [65]3 years ago
8 0
In HZ the answer would be 2400
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Name at least four factors involved in performing a good throw.
atroni [7]

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You need to have a good stance, release, power, speed, body, movement, and aim. You should be able to throw an effective pass or throw by using your body and having the correct amount of balance and form.

Explanation:

7 0
3 years ago
I am so confused please help
dexar [7]
The Answer is B as it is the only reasonable answer that favors Nuclear Energy.
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4 years ago
A annoying small child is dropped off a 16.0 m cliff (for complaining about homework). The
belka [17]

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i would be that annoying child lol

Explanation:

but i just needed this for points sorry :>

4 0
3 years ago
What is the emf of this cell under standard conditions? Express your answer using three significant figures.
madreJ [45]

Complete Question

A voltaic cell utilizes the following reaction and operates at 298 K:

3Ce4+(aq)+Cr(s)→3Ce3+(aq)+Cr3+(aq).

What is the emf of this cell under standard conditions? Express your answer using three significant figures.

Answer:

The value is E^o_{cell}  = 2.35 V

Explanation:

From the question we are told that

   The ionic equation is  

               3 Ce^{4 +}  _{(aq)}  +  Cr _{(s)}  \to  3 Ce^{3+} _{(aq)}  +  Cr^{3r}  _{(aq)}

Now under standard conditions the reduction  half reaction  is

      Ce^{4+}  + e \to Ce^{3+}  ; \ \ E^o_r  =  1.61 V

And the oxidation half reaction is

      Cr^{3+}  +  3e^{-}  \to  Cr ; \    \  \  E^o_o  =  - 0.74 V

The emf of this cell under standard conditions  is mathematically represented as

     E^o_{cell}  =  E^o _r -  E^o _o

substituting values

     E^o_{cell}  =  1.61  - (- 0.74)

    E^o_{cell}  = 2.35 V

     

3 0
3 years ago
Una bebida achocolatada contiene 559 calorías por porción, la persona que la compra desea saber su equivalente en térmias. Por l
amm1812
English one > A portion is how much food you choose to eat at one time, whether in a restaurant, from a package, or at home. A serving, or serving size, is the amount of food listed on a product's Nutrition Facts, or food label (see Figure 1 below).

Different products have different serving sizes, which could be measured in cups, ounces, grams, pieces, slices, or numbers—such as three crackers. A serving size on a food label may be more or less than the amount you should eat, depending on your age, weight, whether you are male or female, and how active you are. Depending on how much you choose to eat, your portion size may or may not match the serving size.

Spanish one > Una porción es la cantidad de comida que eliges comer a la vez, ya sea en un restaurante, en un paquete o en casa. Una porción, o tamaño de porción, es la cantidad de alimento que se indica en la información nutricional o en la etiqueta de un producto (consulte la Figura 1 a continuación).

Los diferentes productos tienen diferentes tamaños de porción, que se pueden medir en tazas, onzas, gramos, trozos, rebanadas o números, como tres galletas saladas. El tamaño de una porción en la etiqueta de un alimento puede ser mayor o menor que la cantidad que debe comer, dependiendo de su edad, peso, si es hombre o mujer y qué tan activo es. Dependiendo de la cantidad que elija comer, el tamaño de su porción puede o no coincidir con el tamaño de la porción.


buena suerte y tuve que traducir esto
7 0
3 years ago
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