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3 years ago

15

a passenger elevator operates at an average of 8 m/s if the 60th floor is 219 m above the first floor how long does it take the

elevator to go from the 1st floor to the 60th floor ?

1 answer:

MAVERICK [17]3 years ago

4 0

Answer:

The universal sign for choking is __________.

A.

two balled fists pressing the abdomen

B.

pointing at an open mouth

C.

two hands grasping the neck

D.

pretending to cough

Explanation:

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When you approach a yield sign, while trying to enter or merge onto another road, traffic already on that road has the right of

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TRUE. When you approach a yield sign, while trying to enter or merge onto another road, traffic already on that road has the right of way.

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3 years ago

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Subduction occurs at which of the following tectonic plate boundaries?

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When two tectonic plates collide and form a converging plate boundry, normally one of the plates will slide underneath the other and that is when Subduction occurs.

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Name three bright Saturn ring features, and explain why they are so bright.

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2 years ago

The acceleration of an object is constant when its velocity is :

emmasim [6.3K]

Answer:

B. changing by a constant amount each second

Explanation:

thats my answer

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3 years ago

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A supertanker ( = 1.70 × 108 kg) is moving with a constant velocity. Its engines generate a forward thrust of 7.40 × 105 N. Dete

a_sh-v [17]

Answer:

(a) 0 (b) $F=1.67\times 10^9\ N$

Explanation:

Given that,

Mass of a supertanker, $m=1.7\times 10^8\ kg$

The engine of a generate a forward thrust of, $F=7.4\times 10^5\ N$

(a) As the supertanker is moving with a constant velocity. We need to find the magnitude of the resistive force exerted on the tanker by the water. It is given by :

F = ma, a is the acceleration

For constant velocity, a = 0

So, F = 0

(b) The magnitude of the upward buoyant force exerted on the tanker by the water is equal to the weight of the ship.

F = mg

$F=1.7\times 10^8\times 9.8\\\\F=1.67\times 10^9\ N$

Hence, this is the required solution.

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2 years ago