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Lena [83]
3 years ago
5

4. A car accelerating at 60 meters/second is hit in an accident by a bus. The net force exerted on

Physics
1 answer:
Licemer1 [7]3 years ago
3 0

Answer:

500kg

Explanation:

mass = newtons/force divided by the acceleration rate

m = 30,000/60

m = 500

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In this formula, g=GM/R^2 , what do G ,m and R stand for?​
gtnhenbr [62]

Answer:

Explanation:

g means gravitation

G is universal gravitational constant

M = mass of the earth

R = radius of the earth

Hope this helps

plz mark as brainliets!!!!!!!!!

6 0
3 years ago
When hydrogen peroxide antiseptic is tightly capped and left on the shelf for a long period of time, the bottle is observed to s
viktelen [127]

Answer:

The hydrogen peroxide decomposes as: H_2O_2\rightarrow 2H_2O+O_2

Explanation:

Hydrogen peroxide antiseptic although tightly capped but left on the shelf for a long time leads to swollen bottle and opens with a hissing sound because hydrogen peroxide reacts with air in presence of light to dissociate into water and oxygen molecules that leads to high volume of content in the tightly closed bottle and formation of water molecules from hydrogen peroxide.

Once the hydrogen peroxide has turned into water molecules it is no longer effective as an antiseptic.

5 0
3 years ago
A push on a textbook with 10 N moves it to a distance of 2 cm. How much force is need to move it to 4 cm?
uysha [10]

Answer:

20N

Explanation:

Ratio of N to cm-

10:2

so to make 2=4 times 2 so The ratio is now-

20:4

so to move 4 cm you need to push 20N.

8 0
3 years ago
What is the concentration of H+ ions at a pH = 2? mol/L What is the concentration of OH– ions at a pH = 2? mol/L What is the rat
densk [106]

Answer:

In Step 5, you will calculate H+/OH– ratios for more extreme pH solutions. Find the concentration of H+ ions to OH– ions listed in Table B of your Student Guide for a solution at a pH = 2. Then divide the H+ concentration by the OH– concentration. Record these concentrations and ratio in Table C.

What is the concentration of H+ ions at a pH = 2?

0.01   mol/L  

What is the concentration of OH– ions at a pH = 2?

0.000000000001   mol/L  

What is the ratio of H+ ions to OH– ions at a pH = 2?

10,000,000,000 : 1

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I LITERALLY spent 40 MINUTES trying to figure out this question, so please, use my VERY CORRECT answers!

I hope this helps!

4 0
3 years ago
What voltage is applied to a 20 ohm fixed resistor if the current through the resistor is 1.5 amps?
pantera1 [17]

Answer:

SDFK fbsdfasdgasdfgasdfg⊃⊃⊃⊃⊃⊃×∈⇔⇔⇔

Explanation:

5 0
3 years ago
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