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bagirrra123 [75]

1 year ago

9

The eiffel tower is 300 meters tall. Disregarding air friction, at what velocity would an object be traveling when it reaches th

e ground if it were dropped from the top of the tower?.

1 answer:

xeze [42]1 year ago

8 0

Answer:

Hope it helps you :)

Explanation in the pic above.

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A thin, rectangular sheet of metal has mass M and sides of length a and b. Find the moment of inertia of this sheet about an axi

Lubov Fominskaja [6]

Answer:

The moment of inertia is $I=\frac{M}{12} a^{2}$

Explanation:

The moment of inertia is equal:

$I=\int\limits^a_b {r^{2} } \, dm$

If r is $-\frac{a}{2}$

and $dm=\frac{M}{a} dr$

$I=\int\limits^a_b {r^{2}\frac{M}{a} } \, dr\\a=\frac{a}{2} \\b=-\frac{a}{2}$

$I=\frac{M}{a} \int\limits^a_b {r^{2} } \, dr\\\\I=\frac{M}{a} (\frac{M}{3} )_{b}^{a}\\ I=\frac{M}{3a} (\frac{a^{3} }{8} +\frac{a^{3} }{8} )\\I=\frac{M}{12} a^{2}$

7 0

3 years ago

Calculate the acceleration of a 270000-kg jumbo jet just before takeoff when the thrust on the aircraft is 160000 N .

Radda [10]

Answer:

<h3>The answer is 0.59 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

$a = \frac{f}{m} \\$

f is the force

m is the mass

From the question we have

$a = \frac{160000}{270000} = \frac{16}{27} \\ = 0.592592...$

We have the final answer as

<h3>0.59 m/s²</h3>

Hope this helps you

7 0

2 years ago

How do sinkholes occur? Overburden falls into the space left behind when bedrock is dissolved. Bedrock falls under the pressure

BabaBlast [244]

Answer: over burden is dissolved by water wind and acids

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2 years ago

How does the plant lichen quicken the weathering process?

konstantin123 [22]

C I Believe , Have Ah Good Day

4 0

2 years ago

Answer:<br> 1m Up + 5m Left + 2m Down

Natali [406]

Oh ok that is v cool

3 0

2 years ago

Read 2 more answers