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kirza4 [7]
3 years ago
9

What holds the stars together in their galaxies? A. light B. orbits of the planets C. weight D. gravity

Physics
2 answers:
RUDIKE [14]3 years ago
8 0
It's D. Gravity holds everything in place

MaRussiya [10]3 years ago
3 0

Answer:

D

Explanation:

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D. or "the amount of neutrons available. 
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Biologists use ball-and-stick models to study complex molecules by representing atoms with balls and bonds with sticks. DNA is a
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Whats the kinetic energy of an object that has a mass of 12 kilograms and moves with a velocity of 10 m/s
Vesnalui [34]

Answer:

600J

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The vector product of vectors A⃗ and B⃗ has magnitude 12.0 m2 and is in the +z-direction.Vector A⃗ has magnitude 4.0 m and is in
g100num [7]

Answer:

θ=180°

Explanation:

The problem says that the vector product of A and B is in the +z-direction, and that the vector A is in the -x-direction. Since vector B has no x-component, and is perpendicular to the z-axis (as A and B are both perpendicular to their vector product), vector B has to be in the y-axis.

Using the right hand rule for vector product, we can test the two possible cases:

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  • If vector B is in the -y-axis, the product AxB should be in the +z-axis. This is the correct option.

Now, the problem says that the angle θ is measured from the +y-direction to the +z-direction. This means that the -y-direction has an angle of 180° (half turn).

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The acceleration due to gravity on the moon is about 5.4ft/s2. if your weight is 150lbf on earth
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... then your weight is <em>25.2 lbf</em> on the moon.

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