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Aleksandr-060686 [28]
3 years ago
6

During a total lunar eclipse, the Earth, Sun, and Moon are arranged in a line, and light from the Sun is blocked out of view for

a certain part of the Earth by the Moon. In what order do the Earth, Sun, and Moon line up? A. Earth, Moon, Sun B. Sun, Earth, Moon C. Earth, Sun, Moon D. Moon, Sun, Earth
Physics
2 answers:
notka56 [123]3 years ago
6 0

A. Earth, Moon, Sun , because the earth is in front of the moon and the moonis in front of the sun blocking it a little bit.

Lena [83]3 years ago
6 0

Answer:

It is sun earth moom!

Explanation:

During a lunar eclipse, the Earth, Sun, and Moon line up in the order:

Sun, Earth, Moon

Since the Earth is between the Sun and the Moon during the lunar eclipse, the Moon is in the Earth's shadow. This makes the Moon look completely dark because none of the Sun's light strikes the Moon.

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Vinvika [58]

Answer:

             

Explanation:

is  A projectile is any object on which the only force acting is gravity and air resistance (drag).

Examples of projectiles are:

baseballs and softballs in the air after being hit by the bat

golf balls hit by a club

objects dropped from aircraft, such as people (skydivers), bombs, crates of food being dropped to refugees

objects launched by cannons, such as cannonballs, shells, and circus performers

Once the baseball, softball, golf ball, skydiver, bomb, crate, cannonball, shell, or clown are no longer touching the bat, club, aircraft, or cannon, and are in the air with only gravity and slight air resistance acting on it, then it is a projectile.

Here is an online projectile motion applets to play with, just for fun.

Unless otherwise stated in a particular problem or discussion, we will be ignoring the effects of air resistance.

The key to understanding the motion of projectiles is that the horizontal motion and the vertical motion of the projectile are independent of each other. So we can write separate equations for the displacement of the projectile in the horizontal (x) and vertical (y) directions.

                         

The only common variable between these two equations is t, the time. Because in projectile problems there is usually no acceleration (i.e. we ignore air resistance) in the horizontal direction, we can write

           

The velocity components follow the same equations we used for one-dimensional motion.

                             

Because there is usually no acceleration in the x direction, the x-velocity is constant.

3 0
3 years ago
Which two statements describe how ultrasound technology produces an image of a baby before it is born?
Elan Coil [88]

Answer:a and c

Explanation:

8 0
3 years ago
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A sound that's produced by a single wave at a constant frequency and with no overtones is called
notka56 [123]
It is called a pure sound
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How long Tina, a ballerina, in the air when she leaps straight up with a speed of 1.8 m/s?
Tems11 [23]

The acceleration of gravity on or near the surface of the Earth is 9.8 m/s².
Anything acted on only by gravity loses 9.8 m/s of upward speed, or gains
9.8 m/s of downward speed, every second.

Leaping straight upward at 1.8 m/s, Tina keeps rising until she runs out of
upward speed.  That happens in (1.8/9.8) = 0.1837 second after the leap.

After that, Finkel's First Law of Motion takes over:
"What goes up must come down."

The dropping part of the leap is symmetrical with the first.  Please don't
make me go through proving it.  Tina hits the floor at the same speed of
1.8 m/s with which she left it, and it takes the same amount of time to drop
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So her total time out of contact with the floor is

                     2 x (0.1837 sec)  =  0.367 second  (rounded)

3 0
3 years ago
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