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allochka39001 [22]
3 years ago
13

True or false we have mucus that covers are stomach which prevents or stomach acid from digesting or stomach

Physics
1 answer:
ivann1987 [24]3 years ago
4 0
The answer is true, our stomachs are protected from acid by mucus.
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-A 1000 kg car is rolling down the street at 2.5 m/s. How fast would a 1800 kg car have to collide into it in
Readme [11.4K]

1.39m/s

Explanation:

Given parameters:

Mass of car M₁ = 1000kg

Velocity V₁ = 2.5m/s

Mass of second car M₂ = 1800kg

Unknown:

Velocity of second car V₂ = ?

Solution:

For the other body to come to rest, the momentum of the colliding cars must be equal and in the opposite direction:

       Momentum of car 1 - momentum of car 2 = 0

 Momentum of car 1 = Momentum of car 2

  M₁V₁ = M₂V₂

The unknown is V₂

      1000x2.5 = 1800V₂

                  V₂ = \frac{2500}{1800} = 1.39m/s

Learn more:

Momentum brainly.com/question/2990238

#learnwithBrainly

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3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Katen [24]

it is violet , because it has the highest energy and fastest oscillation .

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3 years ago
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Nutka1998 [239]
U can also add solar energy and hydro energy. Solar energy is by using the sun, while hydro is by using the force of water.
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3 years ago
If you drive through water, your brakes may become slippery and ineffective. To dry the brakes off, __________.
GenaCL600 [577]

Answer:

C

Explanation:

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A 2.0 g identification reflector glued to one end of a helicopter rotor is spinning at a tangential velocity of 2093 m/s. The re
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