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uranmaximum [27]
3 years ago
7

Three terms in planetary science sound similar but have different meanings.Fill in the blanks below with the correct term. Impor

tant: Spelling matters! Use only lowercase! a. A solar_________ occurs when the Moon passes across the disk of the Sun. b. An___________ describes the shape of a planetary orbit about the Sun.c. The____ describes the path of the Sun as seen against the background stars.
Physics
1 answer:
sweet [91]3 years ago
7 0

Answer:

Three terms in planetary science sound similar but have different meanings.Fill in the blanks below with the correct term. Important: Spelling matters! Use only lowercase! a. A solar eclipse occurs when the Moon passes across the disk of the Sun. b. An ellipse describes the shape of a planetary orbit about the Sun.c. The ecliptic describes the path of the Sun as seen against the background stars.          

Explanation:

When the moon places between the Earth and the Sun, a solar eclipse occurs. The moon is capable to hide the solar disk, even with the sun being 400 times bigger than the moon but the moon is 400 times closer to the Earth than the sun.      

Kepler's first law establishes that all the planets revolve around the Sun in an ellipse orbit, with the sun in one of the focus.

The ecliptic is the apparent path that the sun has in the celestial sphere as a consequence of the daily movement of the Earth around its axis      

                         

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What makes the element named iron (Fe) different from the element named nickel (Ni)? A. Iron is a solid but nickel is a gas. B.
Mazyrski [523]

Answer:C, Atoms of iron are different from atoms of nickel.

Explanation:All the atoms that make up each type of element are alike, and they are different from the atoms that make up every other type of element. So the element iron is different from the element nickel because the atoms that make up the iron are different from the atoms that make up the nickel.

6 0
3 years ago
If an athlete leaps vertically at 4.0m/s, what maximum height does he reach?
joja [24]
Hello
This is a problem of accelerated motion, where the acceleration involved is the gravitational acceleration: g=-9.81~m/s^2, and where the negative sign means it points downwards, against the direction of the motion.

Therefore, we can use the following formula to solve the problem:
v_f^2 = v_i^2 + 2gS
where v_i=4~m/s is the initial vertical velocity of the athlete, v_f=0 is the vertical velocity of the athlete at the maximum height (and v_f=0~m/s at maximum height of an accelerated motion) and S is the distance covered between the initial and final moment (i.e., it is the maximum height). Re-arranging the equation, we get
S= \frac{v_f^2-v_i^2}{2g}=0.82~m

3 0
3 years ago
Winds are named based on different factors how are winds usually named
lina2011 [118]
The winds are usually named based on the compass direction the wind is blowing from.
6 0
4 years ago
A person is standing on a level floor. His head,upper torso,
spin [16.1K]

Answer:

g = 0.98 m

Explanation:

given data:

upper portion weight 438 N and its center of gravity is 1.17 m

upper legs weight 144 N and its center of gravity is 0.835 m

lower leg weight 88 N and its center of gravity is 0.270 m

position of center of gravity of whole body can be determine by using following relation

g = \frac{\sum ({m_i g_i)}}{\sum m_i}

where m_i is mass of respective part and g_i is center of gravity

g = \frac{\sum{ 438\times 1.17 + 144\times 0.835 + 88\times 0.270}}{438+144+88}

g = 0.98 m

4 0
3 years ago
Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after
s2008m [1.1K]

Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after the objects collide and bounce apart?

a-velocity

b-mass

c-momentum

d-direction

Answer:

b. Mass

Explanation:

This question has to do with the principle of the law of conservation of momentum which states that the momentum of a system remains constant if no external force is acting on it.

As the question states, two objects collide with each other and eventually bounce apart, so their momentum may not be conserved but the mass of the objects is constant for each non-relativistic motion. Because of this, the mass of each object prior to the collision would be the same as the mass after the collision.

Therefore, the correct answer is B. Mass.

6 0
4 years ago
Read 2 more answers
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