All categories

2 years ago

Which number is equal to -906,060?

Chemistry

2 answers:

Eva8 [605]2 years ago

7 0

Answer:

it would be c

Explanation:

jshshsyyehdhdhdhdhdhhdhshdbdhdhfhdhdhdhd

Lyrx [107]2 years ago

5 0

Answer: The given number is equal to $-9.0606\times 10^{5}$

Explanation:

Scientific notation is defined as the notation in which a number is expressed in the decimal form. This means that the number is always written in the power of 10 form. The numerical digit lies between 0.1.... to 9.9.....

If the decimal is shifting to right side, the power of 10 is negative and if the decimal is shifting to left side, the power of 10 is positive.

We are given:

A quantity having a value of -906,060

Converting this into scientific notation, we get:

$\Rightarrow -906,060=-9.0606\times 10^{5}$

As, the decimal point is shifting to left side, thus the power of 10 is positive.

Hence, the given number is equal to $-9.0606\times 10^{5}$

You might be interested in

Select the valid ways to make an ammonia/ammonium buffer for use in the laboratory. Mix equal volumes of 1 M NH3 and 0.01 M NH 4

mrs_skeptik [129]

Answer:

The answer is "Option b and Option c".

Explanation:

This buffer is a buffer of ammonia and ammonium ion. Thus it requires the solution $NH_3 \ \ and \ \ NH_4^{+}$ .

In point 1:

The solution containing $NH_3 \ \ and \ \ NH_4^{+}$ at 1M concentration would be given by mixing the two solutions. Thus, this buffer is a legitimate route.

In point 2:

It gives the ions you want but they are not the same.

In point 3:

$1 M$ $NH_3$ and $1 M$ $HCl$ volume would not produce the same $NH_3 \ \ and \ \ NH_4^{+}$ concentrations. Therefore, this buffer isn't a valid route.

In point 4:

Some $1 M$ $NH_3$ volume and half $HCl$ . This offers the same rate as half.

7 0

1 year ago

A 75 lb (34 kg) boy falls out of a tree from a height of 10 ft (3 m). i. What is the kinetic energy of the boy when he hits the

Jobisdone [24]

Answer:

Kinetic energy of boy just before hitting the ground is $\approx$ 1000 J.

Speed of boy just before hitting the ground is 7.67 m/s

or 17.16 mi/hr.

Explanation:

Given that:

Mass of boy = 75lb = 34 kg

Height, h = 10ft = 3m

To find:

Kinetic energy of boy when he hits the ground.

As per law of conservation of energy The potential energy gets converted to kinetic energy.

$\therefore$ Kinetic energy at the time boy hits the ground = Initial potential energy of the boy when he was at the Height 'h'

The formula for potential energy is given as:

$PE = mgh$

Where m is the mass

g is the acceleration due to gravity, g = 9.8 $m/s^2$

h is the height of object

Putting all the values:

PE = $34 \times 9.8 \times 3 \approx 1000\ J$

Hence, Kinetic energy is $\approx$ 1000 J.

Formula for Kinetic energy is:

$KE = \dfrac{1}{2}mv^2$

where m is the mass and

v is the speed

Putting the values and finding v:

$1000 = \dfrac{1}{2}\times 34 \times v^2\\\Rightarrow v^2 = 58.82\\\Rightarrow v = 7.67\ m/s$

Given that:

1 m = 1.094 yd and 1 mi = 1760 yd

$\Rightarrow 1609\ m = 1\ mi$

Converting 7.67 m/s to miles/hour:

$\dfrac{7.67 \times 3600}{1609}=17.16\ mi/h$

4 0

2 years ago

Type in the correct values to correctly represent the valence electron configuration of oxygen: AsB2pC

valkas [14]

Answer:

2s²2p⁴

Explanation:

Oxygen is an element on the periodic table with a total of 8 electrons. It's electronic configuration is given as 2,6.

Using the orbital notation we write as 1s²2s²2p⁴

Also, the valence electrons are the electrons in the outermost shell of an atom. These electrons mostly determine the chemical properties of an atom.

Oxygen has a total of 6 electrons in its outermost shell and it is given as 2s²2p⁴

7 0

2 years ago

Read 2 more answers

Jesse travels 3.0 meters east and then turns and travels 4.0 meters north. The trip requires 35 seconds. What is his velocity? 0

melisa1 [442]

Displacement = √(3² + 4²)
Displacement = 5 meters north east

Velocity = displacement / time
Velocity = 5 / 35
Velocity = 0.14 m/s northeast

6 0

1 year ago

Read 2 more answers

Freon-12, CF2Cl2, which has been widely used in air conditioning systems, is considered a threat to the ozone layer in the strat

Vilka [71]