I found an answer from www.khanacademy.com

Acceleration (video) | Khan Academy

Acceleration **is** also a vector quantity, so it includes both magnitude and direction.
... a = Δv/Δt. This allows you to measure how fast velocity changes in meters per
second **squared** (**m**/**s**^**2**). ... So dividing by **3** would be the same as multiplying by
**1**/**3**. ... (**1**/**1**). The **units** can be cancelled in the same manner (**km**/**km**, hrs/hrs).

For more information, see Acceleration (video) | Khan Academy

I found an answer from primeribgillette.com

**physics** quiz **units** and **measures**

Jan 25, 2021 **...** (ii) Which of the following is the **unit** used to **measure** time? ... and answers
related to the topic of **physical quantities** and **units**. ... **Convert units multi**-**step**
**word problems** (metric) Get 3 of 4 questions to level up! ... Practice the **multiple**
choice questions to test understanding of important topics in the chapters.

For more information, see **physics** quiz **units** and **measures**

I found an answer from www.nasa.gov

Solar System **Math**

Step **2**: Using the chart below, list what you know about our solar ... **3**. EG-2007-
01-203-ARC. Name: Date: **Math** Review: Converting **Units** ... **1 gram** = 100
centigrams ... Why **is** using **kilometers** to measure distances in our solar system a
... x **m**. Distance from Earth to the Sun in solar system. **1** AU. Step **2**: Set this ratio
equal ...

For more information, see Solar System **Math**

I found an answer from www.quora.com

The gravitational constant has the **units** [**math**]**m**^**3 kg**^{-**1**} **s**^**{-2** ...

**G** must have SI **units** of N·m²/kg² because the SI **is** coherent. However, from F =
ma, we know the newton reduces to **kg**·**m**/s². Substituting, **G** has **units** of ...

For more information, see The gravitational constant has the **units** [**math**]**m**^**3 kg**^{-**1**} **s**^**{-2** ...

a) 1 kg m^2 s^{-2} = ....................g cm^2 s^{-2}

1 kilogram equivalent to one thousand grams (g) ( 1 kg = 1000 g )

One meter (m) equals one 100 centimeters (cm).

1 m = 100 cm

1 m^2 = 10^4 cm^2

1 kg m^2 s^{-2} = 1000 g * 10^4 cm^2 * s^{-2}

1kg m^2 s^{-2} = 10^{7} gcm^2s^{-2}

b) 1 m = ............ ly (light year)

Speed of light c = 3* 10^{8} m/s

Time = 1 year = 365 * 24 * 60 * 60 = 31536000 [/math] seconds

\text{ speed } = \frac{\text{ Distance }}{\text{ time }}

\text{ Distance }=speed*time

\text{ Distance } = 3* 10^{8} * 31536000

\text{ Distance } = 9.5 * 10^{15} m

9.5 * 10^{15} m = 1 light year

1 m = ?

1 m = \frac{1}{9.5 * 10^{15}} \text{ light years} = 1.1 * 10^{-16} \text{ light years}

c) 3.0 ms^{-2} = ...............kmh^{-2}

Converting seconds to hours

1 sec = \frac{1}{60 * 60} hours

[math] 1 sec^2 = [\frac{1}{60 * 60}]^2 \text{ hours }^2[/math]

Converting meters to kilometers

1 m = \frac{1}{1000} km

[math] 3.0 ms^{-2} = 3.0 * \frac{1}{1000} km * [\frac{1}{60 * 60}]^{-2} h^{-2} [/math]

3.0 ms^{-2} = 3 * 10^{-3} * (3600)^2 kg h^{-2}

3.0 ms^{-2} = 3.9 * 10^{4} kg h^{-2}

d)

G = 6.67 * 10^{-11} Nm^2 kg^{-2} = ................ cm^3 s^{-2} g^{-1}

1 \text{ newton } = 1 kg m s^{-2}

[math] G = 6.67 * 10^{-11} Nm^2 kg^{-2} = 6.67 * 10^{-11} [1 kg m s^{-2}] m^2 kg^{-2}[/math]

G = 6.67 * 10^{-11} kg^{-1} m^3 s^{-2}

G = 6.67 * 10^{-11} (10^3)^{-1} g^{-1} (10^{2})^3 cm^{3} s^{-2}

G = 6.67 * 10^{-8} g^{-1}(cm)^{3} s^{-2}