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Mkey [24]
2 years ago
7

rocket fuel contains 50j of energy in its chemical store. the rocket has a mass of 1kg. what is the maximum speed the rocket cou

ld reach​
Physics
1 answer:
yanalaym [24]2 years ago
3 0
KE = 1/2mv(squared)

rearrange the formula to:
2KE/m (square rooted) = speed

2*50=100
100/1 =100
100 (square root) = 10

ANSWER: 10m/s
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A rectangular plate is rotating with a constant angular speed about an axis that passes perpendicularly through one corner, as t
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Answer:

2.07

Explanation:

Since you didn't supply the drawing, here is what I assumed:

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Also angular speed is

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Substituting (2) in (1) gives:

ac = (v / r) * (v / r) * r……….3

= (v / r)^2 * r

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Therefore, the angular acceleration at A and at B are given by:

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acB = w^2 * rB……..5

It is given that:

acA = n * acB…………6

Substituting (4) and (5) into (6) gives:

w^2 * rA = n * w^2 * rB ……….7==>

rA = n * rB……..8

In terms of the sides L1 and L2:

rA = sqrt (L1^2 + L2^2)…….9

and

rB = L2…………10

Considering (8):

n * L2 = sqrt (L1^2 + L2^2)………11

Squaring both sides:

n^2 * L2^2 = L1^2 + L2^2……….12

Dividing by L2^2:

n^2 = L1^2 / L2^2 + L2^2 / L2^2…….13

= (L1 / L2)^2 + 1 ==>

n^2 - 1 = (L1 / L2)^2 ………14==>

L1 / L2 = sqrt (n^2 - 1) ………15

= sqrt (2.30^2 - 1)

= 2.07. . . . . . <<<=== the value of the ratio L1 / L2 when n = 2.30

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Answer:

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Explanation:

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Explanation:

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