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3 years ago

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The answer to the question: "the number of times the sun will rise in two years " will be measured in _____.

1 answer:

Murrr4er [49]3 years ago

3 0

I think the answer is Ten. Hope i helped

just asking do you do K-12

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Describe several characteristics that distinguish population I stars from population II stars.

sergij07 [2.7K]

Answer:

Population I stars are usually the blue younger stars. They orbit in the disk and they are relatively rich in metals. Population II stars are the red, older stars that lies in the bulge and halo of the Galaxy. They orbits in the elliptical orbits in the halo.

Population I stars include the sun and tend to be luminous, hot and young, concentrated in the disks of spiral galaxies. They are particularly found in the spiral arms. while, Population II stars tend to be found in globular clusters and the nucleus of a galaxy. They tend to be older, less luminous and cooler than Population I stars. They have fewer heavy elements.

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3 years ago

A small ball is attached to one end of a massless, rigid rod. The ball and the rod revolve in a horizontal circle with the other

nikklg [1K]

Explanation:

<em>i </em><em>don't </em><em>have </em><em>keyboard </em><em>of </em><em>mathametics </em><em>so </em><em>i </em><em>solve </em><em>this</em>

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3 years ago

Two students play tug of war. Jack pulls East with a force of 82 Newtons while Tony pulls west with a force of 96 Newtons. Which

lorasvet [3.4K]

The net force on the center of the rope is C. 14 N West

Explanation:

We have two forces acting on the rope:

- The force applied by Jack, 82 N, towards East

- The force applied by Tony, 96 N, towards West

Taking East as positive direction, we can rewrite the two forces as

$F_1 = +82 N\\F_2 = -96 N$

where the second force is negative since its direction is west.

The two forces act along the same line, so we can calculate their resultant by simply calculating their algebraic sum. Therefore:

$F=F_1+F_2=+82+(-96)=-14 N$

And the negative sign tells us that the direction is West.

Learn more about forces:

brainly.com/question/11179347

brainly.com/question/6268248

#LearnwithBrainly

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3 years ago

Read 2 more answers

What is the kinetic energy of a 0.50 kg ball traveling at 120 m/s

MatroZZZ [7]

Answer:

3600 J

Explanation:

Kinetic energy of an object is the energy posses by an object solely due to its motion.

It can also be defined as the amount of work that can be done when an moving object come to test.

Kinetic energy of an object can be calculated by the equation,

K.E. = ½mv²

Where m = mass, v = velocity

So you get,

K.E. = ½×0.5×(120)² = 3600 J

8 0

3 years ago

A ball is kicked horizontally from a 60 meter tall cliff at 10 m/s. How far from

o-na [289]

Hi there!

We can begin by deriving the equation for how long the ball takes to reach the bottom of the cliff.

$\large\boxed{\Delta d = v_it+ \frac{1}{2}at^2}}$

There is NO initial vertical velocity, so:

$\large\boxed{\Delta d= \frac{1}{2}at^2}}$

Rearrange to solve for time:

$2\Delta d = at^2\\\\t = \sqrt{\frac{2\Delta d}{g}}$

Plug in the given height and acceleration due to gravity (g ≈ 9.8 m/s²)

$t = \sqrt{\frac{2(60)}{(9.8)}} = 3.5 s$

Now, use the following for finding the HORIZONTAL distance using its horizontal velocity:

$\large\boxed{d_x = vt}\\\\d_x = 10(3.5) = \karge\boxed{35 m}$

6 0

3 years ago