Given:
• Mass, m = 0.200 mg
,• Speed, v = 3.00 x 10³ m/s
,• Time, t = 6.00 x 10^⁻⁸ s.
Let's calculate the force exerted.
Using the inpulse-momentum theroerm, we have:
impulse = change in momemntum
Where:
Impulse = force x time
change in momentum = mass x velocity.
Thus, we have:
Let's solve for the force F:
Therefore, the force exterted is 10000 N.
ANSWER:'
10000 N
a) The force that must be applied is 73.5 N
b) The actual efficiency is 82 %
Explanation:
a)
Since the jack is 100% efficient, all the input work is converted into output work. So we can write:
where:
is the input force applied on the jack
is the arm of the input force
is the output force applied on the jack
is the arm of the output force
Here we have:
is the output force (half the weight of the car)
is the arm of the input force
is the arm of the output force
Solving for , we find the force that must be applied in input to lift the car:
b)
The efficiency of the jack is given by the ratio between the output work and the input work:
where we have:
is the output force (half the weight of the car)
is the arm of the input force
is the arm of the output force
Here we are told that the input force this time is
Substituting into the equation, we find the new efficiency of the jack:
Which means an efficiency of 82%.
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Answer:
Check the explanation
Explanation:
Kindly check the attached image below to see the step by step explanation to the question above.
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
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