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lisabon 2012 [21]
3 years ago
11

Which statement best compares the properties of compounds and elements that the compounds contain?

Physics
1 answer:
Agata [3.3K]3 years ago
6 0
A compound is formed due to the chemical combination or chemical reaction between two or more elements. The elements forming a compound cannot be separated by physical means. The properties of the compound is different from the properties of the elements forming it.

Based on this, the answer would be:
They are different.
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Which of the following determines and objects ability to float in water
AleksandrR [38]
I think its
Mass and volume
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3 years ago
The Burj Khalifa is the tallest building in the world at 828 m. How much work would a man with a weight of 700 N do if he climbe
8090 [49]

Answer:

579600J

Explanation:

Given parameters:

Height of the building  = 828m

Weight of the man  = 700N

Unknown:

Work done by the man  = ?

Solution:

The work done by the man is the same as the potential energy expended.

Work done:

            Work done  = Weight x height  = 700 x 828

       Work done  = 579600J

7 0
3 years ago
UN ELEVADOR DE TALLER TIENE PISTONES DE ENTRADA Y DE SALIDA , CON DIAMETRO DE 15 cm Y 40 cm RESPECTIVAMENTE, SE USA EL ELEVADOR
Studentka2010 [4]

Answer:

a) La fuerza que se aplica al pistón de entrada tiene una magnitud de 1968.75 newtons.

b) La presión que se aplica al pistón de entrada es de 111408.460 pascales.

Explanation:

a) Este problema se resuelve mediante el Principio de Pascal, el cual establece que la presión dentro de un sistema hidráulico cerrado es la misma en cualquiera de sus puntos. Por tanto, podemos calcular la fuerza aplicada al pistón de entrada mediante la siguiente relación:

\frac{F_{in}}{\frac{\pi}{4}\cdot D_{in}^{2}} = \frac{M\cdot g}{\frac{\pi}{4}\cdot D_{out}^{2} }

F_{in} = \left(\frac{D_{in}}{D_{out}} \right)^{2}\cdot M\cdot g (1)

Where:

F_{in} - Fuerza aplicada al pistón de entrada, en newtons.

D_{in} - Diámetro del pistón de entrada, en metros.

D_{out} - Diámetro del pistón de salida, en metros.

M\cdot g - Peso del carro, en newtons.

Si sabemos que D_{in} = 0.15\,m, D_{out} = 0.40\,m y M\cdot g = 1.4\times 10^{4}\,N, entonces la fuerza aplicada al pistón de entrada es:

F_{in} = \left(\frac{0.15\,m}{0.40\,m} \right)^{2}\cdot (1.4\times 10^{4}\,N)

F_{in} = 1968.75\,N

La fuerza que se aplica al pistón de entrada tiene una magnitud de 1968.75 newtons.

b) Ahora, presión aplicada al pistón de entrada (p), en pascales, queda descrita a través de la siguiente expresión:

p = \frac{F_{in}}{\frac{\pi}{4}\cdot D_{in}^{2} } (2)

Si sabemos que F_{in} = 1968.75\,N y D_{in} = 0.15\,m, entonces la presión aplicada al pistón de entrada es:

p = \frac{1968.75\,N}{\frac{\pi}{4}\cdot (0.15\,m)^{2} }

p = 111408.460\,Pa

La presión que se aplica al pistón de entrada es de 111408.460 pascales.

3 0
3 years ago
If the distance traveled increases and the time of travel stays same, what happens to the speed
valkas [14]
I think the answer is C. The speed increases. I hope this helps. I'm sorry if I'm wrong :)
7 0
4 years ago
The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic rat
Neko [114]

Answer:

1.4 red : 0 white

Explanation:

3 0
2 years ago
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