275 kPa Explanation: Here the mass of the gas equals m=1.5 kg with an initial volume of V₁=0.04 m³ and an initial pressure P₁=550 kPa. As provided, the final volume is double the original volume, making V₂ equal to 2 V₁. Since the temperature remains constant, T₁=T₂=T. By substituting the values into the equation... results in final pressure being P₂=275 kPa.
Answer:
1.32.225 N/C, moving away from the point charge
2. 8.972*10^-12 C
3. the field is oriented away from the axon
Explanation:
The calculation for the electric field is illustrated below:
E = k*|q|/r²
Where:
E = electric field; k = 8.98755*10⁹ N*m²/C²; r = distance separating the field being measured from the point charge = 0.05 m; q = point charge
For a length of 0.100 m of the axon, the value of q is calculated as:
q = (5.6*10¹¹)*(+e)*(0.001)
+e = charge of an electron = 1.60217*10^-19 C
Therefore:
q = (5.6*10¹¹)*(1.60217*10^-19)*(0.0001) = 8.972*10^-12 C
Consequently:
E = (8.98755*10⁹)*(8.972*10^-12)/0.05² = 32.255 N/C
A positive point charge produces an electric field that radiates outward, while a negative point charge creates an electric field directed inward.
Answer:
Stars generate energy by the process of nuclear fusion.
They are large entities composed of gaseous elements.
The main constituents of stars are hydrogen and helium.
Explanation:
Stars are colossal objects with extensive gravitational forces causing them to contract, which allows fusion to take place: the atomic nuclei in the star's core are drawn very close together due to gravity and elevated temperatures, leading to the fusion reaction. This fusion serves as the energy output for a star.
Conversely, it is true that stars predominantly consist of hydrogen and helium (two hydrogen nuclei can fuse to become helium), which implies that a star is essentially an enormous ball of gas without a solid surface suitable for standing on.
As for the presence of water on a star, it is simply impossible. The extreme temperatures found in stars are far too high for water to exist in any liquid state on their surfaces.
