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2 years ago

Explain why it is not advisable for soldiers to march across the bridge in rythm

2 answers:

6 0

At a certain point, the bridge would start oscillating to the same rhythm as that of the marching steps. This oscillation would reach a maximum peak when the bridge can no longer sustain its own strength and hence collapses. Therefore, soldiers are ordered to break their steps while crossing a bridge.

AnnyKZ [126]2 years ago

4 0

Answer:

might collapse

Explanation:

y'all r too heavy and tht shi will collapse and all y'all would die

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Your own car has a mass of 2000. Kg if your car produces a force of 5000 N how fast will it accelerate?

Marizza181 [45]

F = m*a
5000 = 2000 * x
5000/2000 = x
2.5 = x
2.5m/s^2 = a

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3 years ago

A ball is dropped from a height of 20 meters. At what helght does the ball have a velocity of 10 meters/second?

Sunny_sXe [5.5K]

Answer:

5.10 meters.

Explanation:

v²=u²+2gh

or, (10)²=(0)²+2×9.8×h

or, 19.6h=100

or, h=5.10 meters

Hope, this helps you.

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2 years ago

Jane believes that plate tectonics is a theory, and Mario believes it is a law. Which of the following best supports Jane’s argu

Gekata [30.6K]

Answer:

its d

Explanation:

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8 0

3 years ago

Read 2 more answers

The International Space Station (ISS) orbits Earth at an altitude of 4.08 × 105 m above the surface of the planet. At what veloc

alukav5142 [94]

This question involves the concepts of orbital velocity and orbital radius.

The orbital velocity of ISS must be "7660.25 m/s".

The orbital velocity of the ISS can be given by the following formula:

$v=\sqrt{\frac{GM}{R}}$

where,

v = orbital velocity = ?

G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²

M = Mass of Earth = 5.97 x 10²⁴ kg

R = orbital radius = radius of earth + altitude = 63.78 x 10⁵ m + 4.08 x 10⁵ m

R = 67.86 x 10⁵ m

Therefore,

$v=\sqrt{\frac{(6.67\ x\ 10^{-11}\ N.m^2/kg^2)(5.97\ x\ 10^{24}\ kg)}{67.86\ x\ 10^5\ m}}$

Learn more about orbital velocity here:

brainly.com/question/541239

3 0

2 years ago

PLEASE EXPLAIN.

kvasek [131]

Explain a police role, and how important it is. also you can explain a mayor's role and how important it is...

A police's role in the community is to protect us and make sure that everyone is following the rules. it is important for a police to be there so we can be safe. Their status is fair enough. Another Example is a mayor. a mayor's job is to improve the city/ the community. His status is high. There are many people around us that help us, each with a different status.

**Tell me if you need more

8 0

3 years ago

Explain why it is not advisable for soldiers to march across the bridge in rythm​

Explain why it is not advisable for soldiers to march across the bridge in rythm