Answer:
Comets are composed of ice, dust and frozen gases. The core of the comet is known as nucleus which is formed of rocks and frozen gases. Coma is the atmosphere of the comet. As the comet enters the inner solar system, the coma expands due to sublimation of frozen gases. As it nears the sun, the coma extends backwards and forms a long tail. It extends backwards due to the solar wind. The charged particles from the sun take away the evaporated material and dust of the comet backwards forming tail.
As a comet approaches the Sun, it starts to heat up. The ice transforms directly from a solid to a vapor, releasing the dust particles embedded inside. Sunlight and the stream of charged particles flowing from the Sun – the solar wind – sweeps the evaporated material and dust back in a long tail.
involves the probability of finding an electron in a certain position. thats the answer
A. the speed of the walkway multiplied by the speed at which she is walking
B. the speed of the walkway minus the speed at which she is walking
C. the speed of the walkway plus the speed at which she is walking
I think the answer is A.
A. the speed of the walkway multiplied by the speed at which she is walking
The speed she is walking accelerates her speed by the base speed of the walkway.
Answer:
The answer is C. the speed of the walkway plus the speed at which she is walking
The reaction is spontaneous at temperatures greater than 166.7 K.
To determine the temperature at which the reaction is spontaneous, we can calculate the Gibbs free energy change (ΔG) using the equation ΔG = ΔH - TΔS, where ΔH is the enthalpy change and ΔS is the entropy change. Since the reaction is spontaneous below a certain temperature, we can assume that at this temperature, ΔG is negative. Thus, we have -50.0 kJ - T(-0.300 kJ/K) < 0. Solving for T, we find that the reaction is spontaneous at temperatures greater than 166.7 K.
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The temperature of 871.09 Kelvin as stated in the question is approximately -101.06 degrees Celsius.This is obtained by the standard result.
Temperature is often measured in two main scales, Kelvin (K) and Celsius (°C). To convert from Kelvin to Celsius, you need to subtract 273.15 from the given temperature in Kelvin.
This adjustment accounts for the fact that 0 Kelvin (absolute zero) is the point at which all molecular motion theoretically stops, while 0 degrees Celsius is the freezing point of water.
In this case, for the temperature of 871.09 Kelvin, the conversion is as follows:
The temperature in Celsius = 871.09 K - 273.15 ≈ -101.06°C.
This means that a temperature of 871.09 Kelvin is approximately equivalent to -101.06 degrees Celsius. It's important to note that Kelvin is an absolute temperature scale, where 0 K represents absolute zero, while Celsius is a relative scale with 0°C corresponding to the freezing point of water at standard atmospheric pressure.
To know more about Temperature conversion,
B. sum of the protons and neutrons in an atom.
C. number of protons in an atom's nucleus.
D. mass of the atom
Answer:
C. number of protons in an atom's nucleus.
Explanation:
Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.
However, when we talk about the atomic number of the ion, it is not equal to the number of electrons as electron can be gained or loosed.
This is why, more appropriately, the number of the protons which are present in the nucleus of the atom is called the atomic number.
For example, Sodium has 11 protons in its nucleus which suggest that the atomic number of sodium is 11.