If the federal government imposed an obligation on Texas to retrofit all its oil and gas pipelines with modern technology to eli
1 answer:
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The answers are:
<u>39:</u>
a - 1 mile
b - 0 miles
<u>40:</u>
<u>41:</u>
Why?
Solving 39:
To answer the questions, we need to remember that distance and displacement are different things. Distance refers to the total "ground" covered during motion, while displacement refers to how far is the object/body from its starting point.
So,
<u>39:</u>
a - the total distance traveled corresponds to the length of the track which is 1 mile.
b - The displacement is equal to 0 because they finished at the starting point, the distance between the starting and the finishing point is equal to 0.
<u>40:</u>
We can solve the problem using one of the given equations:
Since we know all the information, we just need to substitute it into the equation:
So, the car's acceleration was -4m/s2 (the car was reducing its speed)
<u>41:</u>
We can solve the problem using one of the given equations (Pythagorean Theorem):
The distance will be:
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Answer:
Complete Question:(missing part)
The current in the left wire having magnitude is = 210 A
The Current in the right wire having magnitude is = 10 A
Answer:
a.
Ratio = B 1/B 2 = 210/10 = 21
Ratio = B 1/B 2 = 210/3 X10 = 7
Explanation:
Ratio of the magnitude of the magnetic field at point A to that at point B =?
The current in the left wire having magnitude is = 210 A
The Current in the right wire having magnitude is = 10 A
distance between two wires = d
Given that both wires are carrying equal current but in opposite direction therefore
Magnetic field linked with the left wire at point A distance =d/2= according to biot savarts law
Magnetic field linked with the right wire at point B distance =d/2
Net magnetic field added
B net = B 1 + B 2
Ratio = B 1/B 2 = 210/10 = 21
Magnetic field linked to left wire at point B(d+ d/2)
Magnetic field linked to right wire at point B(d+ d/2)
Net magnetic field subtracted
B net = B 1 - B 2
Ratio = B 1/B 2 = 210/3 X10 = 7
Answer:
v₁ = 1.78 m/s
Explanation:
We can use the law of conservation of momentum here, as follows:
where,
m₁ = mass of first object = 4.5 kg
m₂ = mass of second object = 6.2 kg
u₁ = initial speed of first (smaller) mass = 16 m/s
u₂ = initial speed of second (larger) mass = 0 m/s
v₁ = final speed of first (smaller) mass = ?
v₂ = final speed of second (larger) mass = 10 m/s
Therefore,
<u>v₁ = 1.78 m/s</u>