Answer:
860 cm/s
Explanation:
Let P = momentum of wrench-man system before throwing the wrench and P' = momentum of wrench-man system before throwing the wrench.
From the law of conservation of momentum,
P = P'
P = 0 (since both Astronaut and wrench were initially stationary) and P' = m₁v₁ + m₂v₂ where m₁ = mass of wrench = 4g = 0.004 kg v₁ = velocity of wrench after releasing the wrench = -15 m/s m₂ = mass of Astronaut = 70 kg and v₂ = velocity of Astronaut after releasing the wrench.
So, P = P'
0 = m₁v₁ + m₂v₂
-m₁v₁ = m₂v₂
dividing both sides by m₂, we have
v₂ = -m₁v₁/m₂
substituting in the values of the variables, we have
v₂ = -0.004 kg × (-15 m/s)/70 kg
= 0.06 kgm/s ÷ 70 kg
= 8.6 × 10⁻⁴ m/s
= 860 × 10⁻² m/s
= 860 cm/s
Examples of agroecology method use are in Burkina Faso are conservation tillage, green manures, natural fertilisers, biological predators and so on.
<h3>What is Agroecology?</h3>
Agroecology refer to an approach that use ecological processes in agricultural production systems.
The benefits of Agroecology is that it help to protect, restore and also improve agriculture and food systems when there is climate shocks and unfavorable weather conditions.
Therefore, Examples of agroecology method use are in Burkina Faso are conservation tillage, green manures, natural fertilisers, biological predators and so on.
Learn more about agroecology here.
brainly.com/question/1494016
The weather!!! not sure though sorry if you get wrong
Answer:
Gallon (US) to Milliliter Conversion Table
Gallon (US) [gal (US)] Milliliter [mL]
1 gal (US) 3785.411784 mL
2 gal (US) 7570.823568 mL
3 gal (US) 11356.235352 mL
5 gal (US) 18927.05892 mL
<span>type and order of amino acids</span>
