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strojnjashka [21]
3 years ago
14

How must the distance between the objects change to keep the gravitational force between them 2000 N? The distance must be one-n

inth the original distance. The distance must be one-third the original distance. The distance must be three times greater. The distance must be nine times greater.
Physics
1 answer:
laila [671]3 years ago
3 0
The distance must be one-third the original distance should be your answer! Hope this helps! :D
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2. Does the amount of iron in the water affect plant growth?
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Answer:

Yes, the amount of Iron can affect the growth of plant.

Explanation:

Iron is essential micro-nutrient for the growth of plant but it is required only in small amount. Iron is required when plant produces chlorophyll and this gives plants oxygen and healthy green color but if a plant is suffering from iron deficiency then the plant's growth becomes stunted and leaves color changes to yellow. For plants requirement of iron is just 1 to 1.5 lb per acre whereas, requirement of nitrogen is 75 to 200 lb per acre.

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Aaron finds a pirate’s treasure map. The treasure map says to start at an oak tree and walks 111 feet East and 234 feet South fr
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Answer:

pirate walk 259 feet

displacement vector = 111 i - 234 j

direction is along south of east at angle 64.62° ,  anticlockwise

total travel 345 feet

Explanation:

given data

walk east = 111 feet

walk south = 234 feet

to find out

How far did the pirate walk and displacement vector and distance and direction relative to east

solution

we consider here distance AB is 111 feet and than he turn right i.e south distance BC is 234 feet so

so angle BAC will be

tan θ = \frac{234}{111}

θ = 64.62

and AC distance will be

AC = \sqrt{234^{2} + 111^{2}}

AC = 259 feet

so pirate walk 259 feet

and

displacement vector is express as

displacement vector = AC ( cosθ i + sinθ j )

displacement vector = 259 ( cos64.62 i + sin64.62 j )

displacement vector = 111 i - 234 j

and

so direction is along south of east at angle 64.62° ,  anticlockwise

3 0
3 years ago
A bi-convex (converging) lens can produce a. only real images b. only virtual images c. both real and virtual images, depending
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Answer:

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When the object placed between focus and optical centre of the lens, the image formed is virtual.

When the object placed beyond focus then the image formed is real.

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An electric field exerts a force of 3.00 E -4 N on a positive test charge of 7.20 E-4 C. The magnitude of the field at this loca
Step2247 [10]
3.00 E-4 / 7.20 E-4 = 0.417
answer is b
3 0
4 years ago
Read 2 more answers
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