A low-luminosity star has a small and narrow <u>habitable zone</u>, whereas a high-luminosity star has a large and wide one.
<h3>What is luminosity of a star?</h3>
The radiant power emitted by a light-emitting item over time is measured as luminosity, which is an absolute measure of radiated electromagnetic power (light).
The total quantity of electromagnetic energy released per unit of time by a star, galaxy, or other celestial object is referred to as luminosity in astronomy.
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<span>time of flight T = 4 sec
time to reach max height = 2 s
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if (u = 34 m/s) was initial speed and (p) angle of projection
u cos (p) *T = Horizontal Range
R = 4 u cos (p) ---------- (1)
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y = u sin (p) * t - 0.5 gt^2 ------- (2)
vy = speed vertical compo =dy/dt= u sin (p) - gt
vy =0 at max height
t (max) = 2 =given = u sin (p) /g
u sin (p) = 2g ------------------------------------ (3)
sin (p) = 2*9.8/34 = 0.5765
so > cos (p) = 0.8171
Range = R = 4 u cos (p) = 4*34*0.8171
R = 111.13 meter
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max height
y (max) = u sin (p) * 2 - 0.5 g*2^2
y (max) = 2g * 2 - 0.5 g*4
y (max) = 4g - 2g = 2g = 2*9.8 = 19.6 meter</span>
Answer:
78.2 m/time
Explanation:
Wavelength =Speed/Frequency
Speed = 46 x 1.7 =78.2 m/time.
Answer:
B
Explanation:
Distance=2+3+5=10
Let the direction from his home to the game store be positive.
Replacement=2+3-5=0
Pitch is way to relate a sound to its frequency. High frequencies have high pitches (think of a flute), and low frequencies have low pitches (think of a bass). <span>
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