A certain spring has a force constant k . (a) If two such identical springs are connected in parallel to each other as shown in part (a) of Figure 6-36 , does the resulting double spring have an effective force constant that is greater than, less than, or equal to k ? Explain. (b) If two of the original springs are connected as shown in part (b) of Figure 6-36 , does the resulting double spring have an effective force constant that is greater than less than or equal to k ? Explain. Figure 6-36 Problem 15
A certain spring has a force constant k . (a) If two such identical springs are connected in parallel to each other as shown in part (a) of Figure 6-36 , does the resulting double spring have an effective force constant that is greater than, less than, or equal to k ? Explain. (b) If two of the original springs are connected as shown in part (b) of Figure 6-36 , does the resulting double spring have an effective force constant that is greater than less than or equal to k ? Explain. Figure 6-36 Problem 15
A certain spring has a force constant k. (a) If two such identical springs are connected in parallel to each other as shown in part (a) of Figure 6-36, does the resulting double spring have an effective force constant that is greater than, less than, or equal to k? Explain. (b) If two of the original springs are connected as shown in part (b) of Figure 6-36, does the resulting double spring have an effective force constant that is greater than less than or equal to k? Explain.
A solid sphere 22 cm in radius carries 17 μC, distributed uniformly
throughout its volume.
Part A
Find the electric field strength 12 cm from the sphere's center.
Express your answer using two significant figures.
E₁ =
ΜΕ ΑΣΦ
ха
Хь
b
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Part B
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|X|
X.10"
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Find the electric field strength 22 cm from the sphere's center.
Express your answer using two significant figures.
ΜΕ ΑΣΦ
E2 =
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Part C
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MN/C
Find the electric field strength 44 cm from the sphere's center.
Express your answer using two significant figures.
ΕΠΙ ΑΣΦ
E3 =
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MN/C
MN/C
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In a naval battle, a battleship is attempting to fire on a destroyer. The battleship is a distance
d1 = 2,150 m
to the east of the peak of a mountain on an island, as shown in the figure below. The destroyer is attempting to evade cannon shells fired from the battleship by hiding on the west side of the island. The initial speed of the shells that the battleship fires is
vi = 245 m/s.
The peak of the mountain is
h = 1,840 m
above sea level, and the western shore of the island is a horizontal distance
d2 = 250 m
from the peak. What are the distances (in m), as measured from the western shore of the island, at which the destroyer will be safe from fire from the battleship? (Note the figure is not to scale. You may assume that the height and width of the destroyer are small compared to d1 and h.)
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