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charle [14.2K]
3 years ago
6

A 1,492.3-kg airplane travels down the runway. Each of its four engines provides a force of

Physics
1 answer:
Fittoniya [83]3 years ago
3 0

The acceleration of the air plane is 3.879 \mathrm{m} / \mathrm{s}^{2}

<u>Explanation:</u>

Given:

The mass of the air plane = 1492.3 kg

Force of each four engine = 1447.5 N

So, the total force of four engines can be calculated as = 4(1447.5) = 5790 N

The force that acts on the object is equal to the product of mass (m) and its acceleration. It can express by the below formula,

                         \text {Force }(F)=m \times \text { acceleration }(a)

The above equation can be written as below to find acceleration,

                        a=\frac{F}{m}

Now. Substitute the given values, we get,

                        a=\frac{5790}{1492.3}=3.879 \mathrm{m} / \mathrm{s}^{2}

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The mass is moving by uniformly accelerated motion, with initial velocity v_i=7.50 m/s and acceleration a=0.55 m/s^2. Its position at time t is given by the following law:
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where we take the initial position x_i=0 since we are only interested in the distance traveled by the mass.

If we put x(t)=d=3.5 km=3500 m into the equation, the corresponding time t is the time it takes for the mass to travel this distance:
\frac{1}{2}at^2+v_it-d=0
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5 0
4 years ago
Una ardilla corre desarrollando una aceleracion de 3.5 m/s2 la fuerza ejecidas por las patas traseras es de 5 N. Cual sera la ma
ziro4ka [17]

Answer:

1.43 kg

Explanation:

We can solve the problem by using Newton's second law:

F=ma

where

F is the net force on an object

m is its mass

a is its acceleration

For the squirrel in the problem, we have:

a=3.5 m/s^2 is the acceleration

F = 5 N is the net force acting on it

Solving for m, we find its mass:

m=\frac{F}{a}=\frac{5}{3.5}=1.43 kg

4 0
3 years ago
a sample of iron has the dimensions of 2cm times 3cm times 2cm. if the mass of this rectangular-shaped object is 94g, what is th
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The answer is 7.83. The three is repeating.

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3 years ago
Use the periodic table from the lesson to answer the following question.
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Answer:

18.99u or 19u

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\\ \sf\longmapsto 9+10

\\ \sf\longmapsto 19u

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\\ \sf\longmapsto 1s^22s^22p^5

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3 years ago
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The voltage V in a circuit that satisfies the law V = IR is slowly dropping as the battery wears out. At the same time, the resi
Anastasy [175]

Answer:

-0.5\times 10^{-4} A/s

Explanation:

We are given that

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R=600 ohms

I=0.04 A

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V=IR

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-0.01-0.04\times 0.5=600\frac{dI}{dt}

-0.03=600\frac{dI}{dt}

\frac{dI}{dt}=\frac{-0.03}{600}=-0.5\times 10^{-4}A/s

5 0
4 years ago
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