Answer:
First, let's express pressure P in Pa and volume V in m3:
⇒P=175 kPa
⇒P=1.75×105 Pa
and
⇒V=275 ml
⇒V=2.75×10−4 m3
Then, let's solve the ideal gas law PV=nRT for temperature T:
⇒PV=nRT
⇒T=PVnR
Substituting the appropriate values into the equation:
⇒T=1.75×105×2.75×10−40.80×8.314 K
⇒T=48.1256.6512 K
∴T≈7.24 K
Therefore, the temperature is around 7.24 K.
The first blank is splitting because water is made up of hydrogen and I think oxygen molecules. The second blank is I think fuel because there are cars that run on hydrogen.
Answer:
Animal? Bacteria? Plant? Fungi? What do these figures represent?
2
None of the above! These organisms may be single-celled like bacteria, and they may look like a fungus. They also may hunt for food like an animal or photosynthesize like a plant. And, yet, they do not fit into any of these groups. These organisms are protists!
What are Protists?
3
Protists are eukaryotes, which means their cells have a nucleus and other membrane-bound organelles. Most protists are single-celled. Other than these features, they have very little in common. You can think about protists as all eukaryotic organisms that are neither animals, nor plants, nor fungi.
4
Although Ernst Haeckel set up the Kingdom Protista in 1866, this kingdom was not accepted by the scientific world until the 1960s. These unique organisms can be so different from each other that sometimes Protista is called the “junk drawer" kingdom. Just like a junk drawer, which contains items that don't fit into any other category, this kingdom contains the eukaryotes that cannot be put into any other kingdom. Therefore, protists can seem very different from one another.
Explanation:
Hope it helps, some how.
Answer:
Amplitude is measured from the center line to the highest point in the waves.
Wavelength is the distance between one wave to the other from the highest point.
Frequency is the rate of the waves.
Answer:
Density of the object = 1.67 g/ml (≅1.7 g/ml)
Explanation:
<u>Given:</u>
Mass of the object, M = 14.01 g
Initial volume of water in the cylinder, V1 = 25.2 ml
Volume of water after the object is placed in the cylinder, V2 = 33.6 ml
<u>To determine</u>
The density D of the object
<u>Explanation:</u>
Density (D) of a substance is the mass (M) occupied by the substance in a given volume (V) i.e.
In this case:
M = 14.01 g
The volume V of the substance = V2-V1 = 33.6-25.2 = 8.4 ml