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lana66690 [7]
3 years ago
14

A positive and a negative charge are initially 4 cm apart. When they are moved closer together so that they are now only 1 cm ap

art, the force between them is
(a) 4 times smaller than before
(b) 4 times larger than before
(c) 8 times larger than before
(d) 16 times lager than before
Physics
1 answer:
GarryVolchara [31]3 years ago
8 0

Answer:

\boxed{\tt(b) \:  4  \: times  \: larger  \: than  \: before}

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A baseball is hit into the air with a velocity of 27 m/s. How high does it go?
Marizza181 [45]

Answer:

Explanation:

If a baseball is hit into the air with a velocity of 27 m/s, we want to determine the maximum height of the ball. Using the projecile formula;

Max height H = u²/2g

u is the initial velocity of the body = 27m/s

g is the acceleration due to gravity = 9.81m/s²

H = 27²/2(9.81)

H = 729/19.62

H = 37.16m

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Answer:

A) Three hole punch and either a layered plastic or paper

B) Identify the lengths involved  ,

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Explanation:

<u>a) Materials involved includes :</u>

Three hole punch and either a layered plastic or paper

Identify the forces acting on the three-hole punch which are Input and output forces

Identify the points where they act

<u>B) procedures involved </u>

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step one:  Identify the lengths involved

assuming no friction or relatively small friction \

mechanical advantage can be calculated as : Length of input arm / length of output arm = L1/ L2

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Using a diagram explain how acceleration can be obtained from a velocity time graph​
Oksi-84 [34.3K]

Answer:

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Explanation:

I hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!

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It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed o
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Answer:

Explanation:

Check attachment for solution

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