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denis23 [38]
3 years ago
14

Hèłp mèéëėę ...............

Physics
2 answers:
Tems11 [23]3 years ago
6 0
It would be C)Whales learn their migration paths from other whales
V125BC [204]3 years ago
5 0
For this question, it would be 

"Whales learn their migration paths from other whales." 

Or (C)
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Does the image above correctly illustrate how the coriolis effect impacts global winds?
Sedbober [7]
Yes the winds are moving in a straight line
6 0
3 years ago
An instrument is thrown upward with a speed of 15 m/s on the surface of planet X where the acceleration due to gravity is 2.5 m/
Katen [24]
<h2>Answer: 12 s</h2>

Explanation:

The situation described here is parabolic movement. However, as we are told <u>the instrument is thrown upward</u> from the surface, we will only use the equations related to the Y axis.

In this sense, the main movement equation in the Y axis is:

y-y_{o}=V_{o}.t-\frac{1}{2}g.t^{2}    (1)

Where:

y  is the instrument's final position  

y_{o}=0  is the instrument's initial position

V_{o}=15m/s is the instrument's initial velocity

t is the time the parabolic movement lasts

g=2.5\frac{m}{s^{2}}  is the acceleration due to gravity at the surface of planet X.

As we know y_{o}=0  and y=0 when the object hits the ground, equation (1) is rewritten as:

0=V_{o}.t-\frac{1}{2}g.t^{2}    (2)

Finding t:

0=t(V_{o}-\frac{1}{2}g.t^{2})   (3)

t=\frac{2V_{o}}{g}   (4)

t=\frac{2(15m/s)}{2.5\frac{m}{s^{2}}}   (5)

Finally:

t=12s

3 0
3 years ago
I need help this is for economics, can anyone help me ?
PolarNik [594]

i can <u>when do u need it by</u> working on it now!!!

4 0
3 years ago
Do change that cannot be easily reversed such as burning observe the law of conservation of mass
agasfer [191]
Yes. Why would you think that there are some special processes in everyday life that don't ?
6 0
3 years ago
A skater has outstretched arms preparing for a turn with a moment of inertia of
Helen [10]

Answer:

The final angular speed is 16.1 rad/s

Explanation:

Given;

initial moment of inertia, I₁ = 2.56 kg.m²

final moment of inertia, I₂ = 0.40 kg.m²

initial angular speed, ω₁ = 0.4 rev/s = 2.514 rad/s

Apply the principle of conservation of angular momentum;

I₁ω₁ = I₂ω₂

where;

ω₂ is the final angular speed

ω₂ = (I₁ω₁) / (I₂)

ω₂ = (2.56 x 2.514) / (0.4)

ω₂ = 16.1 rad/s

Therefore, the final angular speed is 16.1 rad/s

7 0
3 years ago
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