here at the moment when bullet strikes the block it will have no external force on it
so here we can use momentum conservation
so we will have
so they move together with speed 1.98 m/s
The triceps muscle in the back of the upper arm is primarily used to extend the forearm. Suppose this muscle in a professional b
1 answer:
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Answer:
Time = 0.86 s
Horizontal distance = 3.03 m
Explanation:
Given data:
initial velocity = = 3.8 m/s
θ = 22° below with horizontal
Height = h = 4.9 m
a.) Time = t = ?
b.) Horizontal distance = R = ?
a.) First we need to find time of flight
Resolve Velocity into horizontal and vertical component
Horizontal component = =
Cosθ
= 3.8Cos22°
= 3.52 m/s
Vertical component = =
Sinθ
= 3.8Sin22°
= 1.42 m/s
Using 2nd equation of motion
4.9 = 1.42t + 4.9t²
the above equation is quadratic. So it has 2 outputs. By solving above equation we have two outputs that is
t = 0.86 s & t = -1.15 s
Time can never be negative ,So the correct answer is t = 0.86 s
t = 0.86s
b.)
As the horizontal component of velocity in projectile motion remain constant, so there is no acceleration along horizontal.
we can simply use this formula
R =
R = (3.52)(0.86)
R = 3.03 m
The amount of oxygen will be 22.29 gm required to produce 37.15 g co₂.
<h3>What is a chemical reaction?</h3>One or more compounds, known as reactants, are transformed into one or more distinct substances, known as products. Such a process is known as a chemical reaction.
Given reaction;
The quantity of oxygen is x and the quantity of carbon dioxide is y then the ratio of their composition is found as;
5x=3y
5x=37.15
x=3×37.15/5
x=22.29 gm
Hence the amount of oxygen will be 22.29 gm
To learn more about the chemical reaction refer to the link;
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