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kiruha [24]
3 years ago
7

A close relationship between two species that benefits at least one of the species is known as symbiosis. true or false

Physics
1 answer:
DIA [1.3K]3 years ago
6 0
The answer is true! Hope this helps 

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Which of the following lists arranges the colors of light from highest energy to lowest energy?
Afina-wow [57]
So, for the visible range, the colors are arranged in order of increasing frequency like this: Red < Orange<span> < </span>Yellow<span> < Green < Blue < Indigo < </span>VIolet<span>.</span>
3 0
3 years ago
Why aren't humans as evolved as we think we are?
bezimeni [28]
Well there is many ways we are not evolved as much as we think we are from being we die from a lot of diseases to world hunger and other things to be honest humans are far from being really evolved in life we really need to focus on cures and solving world hunger and fighting among ourselves 

Hope this helps
8 0
3 years ago
A baseball is thrown at an angle of 20° relative to the ground at a speed of 25 m/s if the ball was caught 50 m from the thrower
scoray [572]

Answer:

2.1 s

Explanation:

The motion of the ball is a projectile motion. We know that the horizontal range of the ball is

d = 50 m

And that the initial speed of the ball is

u=25 m/s

at an angle of

\theta=20^{\circ}

So, the horizontal speed of the ball (which is constant during the entire motion) is

u_x = u cos \theta = 25 \cdot cos 20^{\circ} = 23.5 m/s

And since the horizontal range is 50 m, the time taken for the ball to cover this distance was

t=\frac{d}{u_x}=\frac{50}{23.5}=2.1 s

which is the time the ball spent in air.

8 0
3 years ago
In which situation is no work being done?
Nataliya [291]
I would say that work is being done in all the situations because technically in physics work is done whenever force is applied through a distance.
8 0
3 years ago
Read 2 more answers
A bullet can travel at a speed of over 1000 m/s. When a bullet is fired from a rifle, the actual firing makes a distinctive soun
slamgirl [31]

Explanation:

When a bullet is fired from a rifle, the actual firing makes a distinctive sound, but people at a distance may hear a second because the bullet creates a shock wave , a little sonic boom( speed of this sonic boom is greater than the speed of sound). It is this sound only that is heard by the people at a distance from the gun.

7 0
3 years ago
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