In a pneumatic system, pressure is achieved with a force acting on both liquids and gases. true false

In any ecosystem, the organisms ___________ for resources, such as food, water, and space. compete fight kill

Rashid [163]

Compete

Explanation:

In any ecosystem, it is a known fact that the organisms compete for resources such as food, water, and space.

An ecosystem is made up of different communities of organisms interacting with one another and their environment.

Resources in any environment are limited and are not able to satisfy the needs of the organisms.
This leads organisms to compete for them.
they begin to develop different behaviors that can enhance their chances of accruing more resources to themselves.

learn more:

Ecosystem brainly.com/question/7846024

#learnwithBrainly

3 0

3 years ago

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What is the resultant displacement of the two vectors below

NeX [460]

Answer:

The resultant displacement is 5.8 cm, 31° South of the West axis ⇒ 4th

answer

Explanation:

A resultant vector is the combination of two or more single vectors

If the two vectors are perpendicular, then

The magnitude of the resultant vector = $\sqrt{x^{2}+y^{2}}$ ,where

x represents the horizontal vector and y represents the vertical vector

The direction of the resultant vector is $tan^{-1}\alpha$ , where α

is the angle between the horizontal vector and the resultant vector

Vector 1 is 5 cm due to West-axis

Vector 2 is 3 cm due to South-axis

We need to find the resultant displacement of them

The West and South are perpendicular

The West is the horizontal vector and South is the vertical vector

The magnitude of the resultant displacement s is:

$s=\sqrt{(5)^{2}+(3)^{2}}$

$s=\sqrt{25+9}$

$s=\sqrt{34}=5.8$

The direction of the resultant displacement s is:

$tan^{-1}\frac{3}{5}=31$ ° south of the west (between the west and

the resultant displacement)

The resultant displacement is 5.8 cm, 31° South of the West axis

6 0

3 years ago

Hello, please anybody help if you can!!

Vinil7 [7]

This is called "projectile motion". The projectile can be a baseball,
a bullet, a golf ball, or a rock that somebody tossed. In this story,
the swimmer is the projectile.

In projectile motion, the projectile is moving part horizontally and part
vertically at the same time. The thing to remember about this kind of
motion is: The horizontal motion doesn't change, but the vertical motion
changes because of gravity ... just like an apple that fell from a tree.

The swimmer runs straight horizontally off the diving board. His horizontal speed is 3.62 m/s. He hits the water 1.68 m from the end of the board. How long did it take him to go that far ?

   Time = (distance) / (speed)

   = (1.68 m) / (3.62 m/s)

   = (1.68 / 3.62) seconds

   =    0.464 second .

(a).
How high above the water was the diving board ?
Well, the swimmer was falling for 0.464 second .
The height is whatever it takes 0.464 second to fall.

   Height = (1/2) x (acceleration of gravity) x (time)²

      = (1/2) x (9.8 m/s²)    x (0.464 sec)²

=    (4.9 m/s²)    x (0.2153 sec²)

=    (4.9 x 0.2153) meters

=    1.055 meters .

(b).
If the swimmer runs off the board slower, his horizontal speed is
lower. That only affects how far out in front of the board he'll be
when he hits the water. But his horizontal speed has no effect
on how long it takes him to fall to the water. That's his vertical
speed, and it only depends on gravity.
No matter how fast or slow he runs off the board, or if he just
stands there at the end and leans over until he falls, it takes him
the same time to reach the water in every case.

6 0

3 years ago

The color of a star is primarily determined by its _____. composition size apparent brightness age surface temperature

pashok25 [27]

the color of a star is primarily determined by its : suface temperature. The surface temperature is used to estimate the wavelength that radiated within. the star with lower wavelegth tend to have purple-ish color, while the one with higher wavelength tend to have orange-ish color

6 0

4 years ago

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How does distance between two objects affect their gravitational force?

EastWind [94]

Force decreases as distance increases

5 0

3 years ago

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