Answer:
Part a : Time required for the block to go to 3.05 in is 0.036 s
Part b : Time required for the block to go to 6.1 in is 0.054 s
Explanation:
The acceleration is given as
Here
is the initial acceleration which is given as 420 
- k is the spring constant which is calculated as follows
- Here lc is the compressed length of the spring
- and Iuc is the uncompressed length of the spring so the value of k is
So now the equation becomes
As per relation of acceleration to velocity
Also
So
Solving for dt and integrating results in
Now using this equation value for both parts can be calculated numerically as
Part a 3.05 in
Solving numerically for this value of x
Time required for the block to go to 3.05 in is 0.036 s
Part b 6.1 in
Solving for this value of x
Time required for the block to go to 6.1 in is 0.054 s
Answer:
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Explanation:
Your reasoning that the shadow is the shortest at mid-day is spot-on!
The wording of the question is the key to the answer. It says that the measurements were made in Summer. So this means that British Summer Time (BST) is being applied. BST is one hour ahead of Greenwich Mean Time and so what looks like 1pm is really 12 noon.
The safest sort of answer is to say that the shadow is shortest when the sun is at its highest point, and in this particular question that is at 1 pm because it is BST.
1.1111111111
Explanation:
v=s/t
t=8:30-7:00=1:30
convert to second=5400second
s=60km covert to meter=6000
6000/5400=1.11111111
She uses 0 power because she simply has no gas left. She used all of it getting a 50 pc McDonald’s nugget with a side of ranch and a medium fry and a large water.
Iron is a magnetic metal, and it is essential to the Earth's magnetic field!
Essentially it "records" (stores the information, maintains) the direction and orientation of the magnetic field.
Among others, the magnetic field protects the Earth from dangerous cosmic rays.
