include at least five action items that you and your family will do to conserve energy. PLEASE I NEED HELP! THIS QUESTION IS WOR
2 answers:
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Answer:
I = 20 i ^ N s
Explanation:
For this problem let's use the Impulse equation
I = Δp = m - v₀
The impulse and the velocity are vector quantities, let's calculate on each axis, let's decompose the velocity
cos 60 = vₓ / v
vₓ = v cos 60
sin60 = / v
= v sin60
vₓ = 10 cos 60
= 10 sin60
vₓ = 5.0 m / s
= 8.66 m / s
Let's calculate the impulse on each axis
X axis
Iₓ = m - m vₓ₀
How the ball bounces
= - vₓ₀ = vₓ
Iₓ = 2 m vₓ
Iₓ = 2 2 5
Iₓ = 20 N s
Y axis
= m
- m vyo
On the axis and the ball does not change direction so
= vyo
= 0
The total momentum is
I = Iₓ i ^ + j ^
I = 20 i ^ N s
Answer:
Explanation:
According to the given reaction,
heat released by thecombustion of 2 molecules of Methanol,
we know that molecular mass of Methanol,
∴12 gram of methanol =
we know 1 mole =
so,
Heat from the combustion of :
<u>Now the mass of water that can be heated from 23.5°C to 88.2°C :</u>