The correct answer is I disagree. Elements form all pure substances, but some pure substances include elements bonded together to form molecules and compounds.
Elements are pure substances but these elements also make other things such as water. The water molecule is made of two elements called oxygen and Hydrogen. Now water itself is a pure substance as it is chemically bonded hydrogen and Oxygen but it is composed of more than one element
Answer:
Wavelength
Explanation:
The distance between corresponding points of adjacent waves is known as the wavelength.
In a wave motion, the point at which displacement is at maximum is known as the crest of the wave while the point where the displacement is at minimum is known as the trough of the the wave.
The distance between these two successive crest and trough of he wave as known as its wavelength.
Wavelength can be expressed as a function of frequency and velocity of a wave.
Answer:
0° C = 273.15 K
0 K = - 273.15° C
Explanation:
<em>Hello there!</em>
The Kelvin temperature scale refers to the absolute temperature scale. The division in the Kelvin scale is equal to a degree on the Celsius scale only it's difference is zero
The Celsius scale of zero (0°C) is the freezing point.
0 K is Absolute Zero.
•°• 0 K = - 273.15° C
0° C = 273.15 K
Furthermore, this is what I would like you to know about this scales;
<em>The </em><em>Kelvin </em><em>scale </em><em>is </em><em>used </em><em>for</em><em> </em><em>very </em><em>low </em><em>or </em><em>very </em><em>high </em><em>temperatures</em><em> </em><em>where </em><em>water </em><em>is </em><em>not </em><em>involved</em><em>.</em>
<em>Note:</em><em> </em>
<em>The </em><em>boiling</em><em> point</em><em> of</em><em> water</em><em> is</em><em> </em><em>1</em><em>0</em><em>0</em><em>°</em><em>C</em><em>.</em>
I hope this helps you to understand more on this scales. Have a nice studies.
Answer:
r = 50.47 x 10³ m = 50.47 km
Explanation:
Using the formula for the acceleration due to gravity:
where,
g = acceleration due to gravity on the surface of asteroid = 0.0288 m/s²
G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ Nm²/kg²
m= mass of asteroid = 1.1 x 10¹⁸ kg
r = radius of asteroid = ?
Therefore,
<u>r = 50.47 x 10³ m = 50.47 km</u>
