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Serjik [45]
3 years ago
9

Based on Kepler's work, which best describes the orbit If a planet around the Sun?

Physics
1 answer:
krek1111 [17]3 years ago
7 0

Answer:

an ellipse with the Sun at one focus  or D

Explanation:

Answer for edgenuity

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You throw a baseball (mass 0.145 kg) vertically upward. It leaves your hand moving at 12.0 m/s. Air resistance can be neglected.
Andru [333]

Answer:

The ball will have an upward velocity of 6 m/s at a height of 5.51 m.

Explanation:

Hi there!

The equations of height and velocity of the ball are the following:

y = y0 + v0 · t + 1/2 · g · t²

v = v0 + g · t

Where:

y = height at time t.

y0 = initial height.

v0 = initial velocity.

t = time.

g = acceleration due to gravity (-9.81 m/s² considering the upward direction as positive).

v = velocity of the ball at time t.

Placing the origin at the throwing point, y0 = 0.

Let´s use the equation of velocity to obtain the time at which the velocity is 12.0 m/s / 2 = 6.00 m/s.

v = v0 + g · t

6.00 m/s = 12.0 m/s -9.81 m/s² · t

(6.00 - 12.0)m/s / -9.81 m/s² = t

t = 0.612 s

Now, let´s calculate the height of the baseball at that time:

y = y0 + v0 · t + 1/2 · g · t²     (y0 = 0)

y = 12.0 m/s · 0.612 s - 1/2 · 9.81 m/s² · (0.612 s)²

y = 5.51 m

The ball will have an upward velocity of 6 m/s at a height of 5.51 m.

Have a nice day!

4 0
3 years ago
Why is venus called brightest star and mars called red planet​
bogdanovich [222]

Answer:given below by him is correct

Explanation:

Pls refer his

3 0
3 years ago
Menciona un ejemplo de la vida cotidiana donde se apliquen las cuatro fuerzas fundamentales de la naturaleza.
Gekata [30.6K]
Yesterday was the day that we got canceled on it so we had a lot
4 0
3 years ago
A ball rolling down a hill was displaced 21.9 m while uniformly accelerating from rest. If the final velocity was 7.14 m/s, what
belka [17]

Answer:

a = 1.16 m/s²

Explanation:

In order to find the acceleration of the ball we will use 3rd equation of motion.

2as = Vf² - Vi²

where,

a = acceleration = ?

s = displacement = 21.9 m

Vf = Final Velocity = 7.14 m/s

Vi = Initial Velocity = 0 m/s (Since, ball starts from rest)

Therefore, using the values, we get:

2a(21.9 m) = (7.14 m/s)² - (0 m/s)²

a = (50.97 m²/s²)/(43.8 m)

<u>a = 1.16 m/s²</u>

4 0
3 years ago
As of 2016, Nevada has a current minimum wage of $8.25 an hour ($/hr). If someone was really picky about how much they owed, how
xz_007 [3.2K]

Once again, you'd need to know that there are 60 seconds in a minute, and 60 minutes in an hour :)

I'd say converting the minimum wage into cents rather than dollars would make this problem a lot easier. $8.25 = 825 ¢.

So if this person is earning 825 ¢ in an hour, we should divide 825 by 60 to find out how much they're making in a minute:

825 ÷ 60 = 13.75 ¢

Now, we just need to divide by 60 again to work out how much that is in seconds:

13.75 ÷ 60 = 0.229 ¢

So to answer your question, this person would make 0.229 ¢ a second (¢/s) on the job with minimum wage. Converting this value to dollars wouldn't be viable (as it'd just be $0.00, so it's best to leave the answer in cents!)

6 0
3 years ago
Read 2 more answers
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