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4 years ago

What are the largest- and smallest-known values of the mass, luminosity, surface temperature, and diameter of stars (roughly)?

Physics

1 answer:

erastova [34]4 years ago

7 0

Answer:

Explained

Explanation:

MASS: range from 0.08 times the suns mass (0.08 M of sun) to 150 times the suns mass (150 M of sun)

Luminosity: range from 1/10,000 the Sun's luminosity (10^-4 L of sun) to 1 million times the Sun's luminosity (10^6 L of sun)

Surface Temperature: range from 3000 K (M stars) to 40,000 K (O stars)

diameter: 10% the size of the sun and 20 times larger.

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While in a car at 4.47 meters per second a passenger drops a ball from a height of 0.70 meters above the top of a bucket how far

viktelen [127]

Answer:

1.7 m

Explanation:

$v_x$ = Velocity of ball in x direction = 4.47 m/s

$u_y$ = Velocity of ball in y direction = 0

g = Acceleration due to gravity = $9.81\ \text{m/s}^2$

t = Time taken

$s_y$ = Vertical displacement = 0.7 m

$s_y=u_yt+\dfrac{1}{2}gt^2\\\Rightarrow 0.7=0+\dfrac{1}{2}\times 9.81t^2\\\Rightarrow t=\sqrt{\dfrac{0.7\times 2}{9.81}}\\\Rightarrow t=0.38\ \text{s}$

Horizontal displacement is given by

$s_x=v_xt\\\Rightarrow s_x=4.47\times 0.38\\\Rightarrow s_x=1.7\ \text{m}$

The passenger should throw the ball 1.7 m in front of the bucket.

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