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sasho [114]
3 years ago
7

What are the uses of oxygen?

Physics
2 answers:
almond37 [142]3 years ago
5 0
Respiration for plants (breathe it out) and animals (breathe it in)
Karo-lina-s [1.5K]3 years ago
4 0
The uses of oxygen are for respiration purposes in all animals and humans.
You might be interested in
Nicole throws a ball straight up. Chad watches the ball from a window 6.10m above the point where Nicole released it. The ball p
solong [7]

Answer:

v=16.234m/s

Explanation:

Given data

Distance S=6.10 m

Initial Speed u=12.0 m/s

To find

Final Speed v

Solution

From third equation of motion we know that:

v^{2}-u^{2}=2aS

where

v is final velocity

u is initial velocity

a is acceleration

S is distance

Substitute the given values to find v

v^{2}=u^{2}+2aS\\v^{2}=(12.0m/s)^{2} +2(9.8m/s^{2} )(6.10m)\\v^{2}=263.56\\  v=\sqrt{263.56}\\ v=16.234m/s

3 0
3 years ago
The total charge a battery can supply is rated in mA⋅hmA⋅h, the product of the current (in mA) and the time (in h) that the batt
Nat2105 [25]

Answer:

118800 seconds

Explanation:

Given :

Voltage, V = 1.2 V

Resistance, R = 22 Ω

Applying Ohm's law, we get

Voltage, V = IR

Current $I=\frac{V}{R}$

           $I=\frac{1.2}{22}$

          I = 0.0545 A

Rate = 1800 mAh

Time taken, $t=\frac{1800 \times 10^{-3}}{0.0545}$

                       = 33 hr

                      = 118800 s

8 0
2 years ago
Example 4:
earnstyle [38]

Answer:

Given speed of light in diamond =1.24*10m/s

speed of light (c) =3*10^8m/s

refractive index of diamond =3*10^8/1.24*10=2.41*10^7m/s

3 0
3 years ago
an aircraft has a liftoff speed of 53 m/s. what is the minimum constant acceleration an airplane must have to reach that takeoff
xxMikexx [17]

Answer:

a=3.34\ m/s^2

Explanation:

<u>Accelerated Motion </u>

It refers to the motion of objects in which velocity is not constant over time. If the change of the velocity occurs at the same rate, then we say it's uniformly accelerated. Being   v_o= initial speed, v_f= final speed, a= constant acceleration, x= distance traveled

Then, the scalar relation between them is

v_f^2=v_o^2+2ax

The aircraft needs to reach a liftoff speed of 53 m/s from rest (assumed) having only 420 meters to do so. We can compute the acceleration by solving for a

\displaystyle a=\frac{v_f^2-v_0^2}{2x}

\displaystyle a=\frac{53^2-0^2}{2(420)}

\boxed{a=3.34\ m/s^2}

6 0
3 years ago
Explain how valence electrons can result in the<br> creation of ions.
Brums [2.3K]
So as you may know atoms are neutral because the number of protons (+ charge) and the number of electrons( - charge) are the same so they cancel out. When a valence electron leaves an atom it will have a +1 charge because there is one less negative than positives or there is one more positive than negatives since a negative electron left. If a valence electron is added a -1 charge because there is now one more negative than positive!!!
hope that helps!!
7 0
3 years ago
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