Answer:
First trial: Big ball dropped first, feather fell much later
Second trial: Big ball and small bell fell at same time
Third trial: small ball fell first, feather fell later
Explanation:
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<span>The waste products of combustion leave the internal combustion engine through the: B) Exhaust valve</span>
Answer:
161376 kJ
Explanation:
The equation for standard Gibbs energy free energy for a reaction is -
ΔG⁰ = ΔH⁰ - TΔS⁰
The values of ΔH⁰, T and ΔS⁰ are given in the question as
ΔH⁰ = -2256 kJ
T = 298 K
ΔS⁰ = -549.1 kJ
So, putting these values in the above equation we get
ΔG⁰ = -2256 - (-549.1 × 298)
ΔG⁰ = -2256 + 163631.8 = 161375.8 ≈ 161376 kJ
Thus, the standard Gibbs free energy for the reaction mentioned in the question will be 161376 kJ.
Answer:
1.5
Explanation:
From the question ,
velocity v= 2.0m/s
Time t = 0.75secs
Distance =?
Velocity = distance/ time
2.0 = d/0.75
Crossmultipy
d = 2.0 x 0.75
= 1.5m
Answer:
Distance, S = 440 meters.
Explanation:
Given the following data;
Initial velocity, u = 17m/s
Time, t = 20 seconds
Final velocity, v = 27m/s
To find the distance;
First of all, we would determine the acceleration of the truck.
Acceleration = (v-u)/t
Substituting the given values into the equation, we have;
Acceleration = (27 - 17)/20
Acceleration = 10/20
Acceleration = 0.5m/s²
Now, we would use the second equation of motion to find the distance traveled.
S = ut + ½at²
S = 17*20 + ½*0.5*20²
S = 340 + 0.25*400
S = 340 + 100
S = 440m