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3 years ago

1. Why is it important to use units in any graph?

2 answers:

7 0

2) Labelling. Graphs are used to present data. They must be clearly labelled if the reader is to understand them. By labelling we are referring to the text inside the graph itself, and not the title.

Scorpion4ik [409]3 years ago

4 0

Answer:

so its easier to understand for the reader

Explanation:

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4. What is the formula for potassium dichromateo?b

Gre4nikov [31]

Formula for potassium dichromate is

K2Cr2O7

4 0

2 years ago

If two proton approach each other with speed of 400m\s and 450m\s respectively what is the total momentum of the two particle sy

lilavasa [31]

Answer: $83.65\times 10^{-27}\ kg.m/s$

Explanation:

Given

The velocities of the protons are 400 m/s and 450 m/s

Mass of the Proton is $m=1.673\times 10^{-27}\ kg$

Since they travel in the opposite direction, therefore, their momentum cancels out each other.

Momentum is the product of mass and velocity

$\therefore m(450-400)\\\Rightarrow 1.673\times 10^{-27}\times 50\\\Rightarrow 83.65\times 10^{-27}\ kg.m/s$

The direction of momentum is in the direction of proton having 450 m/s velocity.

7 0

3 years ago

Un auto parte desde un lugar a las 6:00 de la mañana con una rapidez de 150 Km/hr a través de una carretera recta. a) ¿Qué dista

Gwar [14]

Answer:

600 km

6 hours

Explanation:

El tiempo que viaja el automóvil de 6 a 10 de la mañana es $10-6=4\ \text{horas}$

La velocidad del coche es 150 km/hr

La distancia está dada por

$\text{Distancia}=\text{Velocidad}\times \text{Tiempo}$

$150\times 4=600\ \text{km}$

A distancia recorrida a las 10 de la mañana es de 600 km.

Ahora el tiempo que se toma está dado por

$\text{Tiempo}=\dfrac{\text{Distancia}}{\text{Velocidad}}$

$\dfrac{900}{150}=6\ \text{horas}$

El tiempo que se tarda en recorrer 900 km es de 6 horas.

8 0

3 years ago

Do non metals have luster

puteri [66]

Yes, It probably true. Because the Luster it has a nonmetal, is going to be found in periodic table.

Hope it helped you.

-Charlie

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3 years ago

How does eclipses occur

serious [3.7K]

Answer:

When Earth passes directly between the sun and the moon, a lunar eclipse takes place. During a solar eclipse, the moon casts two shadows. One is called the umbra; the other is called the penumbra. An eclipse takes place when Earth or the moon passes through a shadow.

3 0

3 years ago

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