Answer:
You can use the mass-luminosity relation to find the star's lifetime in terms of just its initial mass. The lifetime = mass/luminosity × 1010 years is simply = (star's mass)/[(star's mass)p] × 1010 years = 1/(star's mass)p-1 × 1010 years. Remember that the star's mass is in solar masses.
Explanation:
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A- Graph B shows exponential growth of a population.
Graph B is a type of exponential equation where y=a(b)^x
"a" is the initial value that intercepts the y-axis in the above equation.
"b" is the value that every value thereafter is growing (multiplying by). Note, if "b" is 1- your value is not growing (since it is staying at it's original 100%). If "b" is, for example 1.5 your value is growing by 50% each time (1 gives you your original 100%, and the .5 gives you an additional 50% on top of that).
"x" is your input, and here it is the exponent because you are multiplying "b" to the power of your input for each value.
High pressure and ocean currents causes dry summer season in San Francisco and abundant amount rainfall in Washington, DC.
High pressure cells combine with the different ocean currents off the coasts causes a summer dry season in San Francisco and abundant rainfall in Washington, DC because these pressure cell along with ocean currents carried out moist winds which turn into clouds lead to rainfall.
When moist winds blow inland, the high terrain of the Cascade Range forces the moist air to rise into the atmosphere, forming thick clouds and steady rainfall occurs in Washington, DC while on the other hand, San Francisco experience dry summer season and wet winter season due to presence near the water bodies so we can conclude that high pressure and ocean currents causes dry summer season in San Francisco and abundant amount rainfall in Washington, DC.
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