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2 years ago

Which is an indication that a man might be choking

Physics

2 answers:

Maksim231197 [3]2 years ago

5 0

Answer:

if they are struggling to breathe, attempting to cough (like coughing something up) or asking for help whilst holding their stomach, neck

nalin [4]2 years ago

4 0

Answer:

If they put their hands near their neck, if they're not breathing properly, if they aren't coughing.

Explanation:

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A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due

maxonik [38]

Answer:

Explanation:

Given:

Mass of the boat, m = 4040 kg

The driving force of engine, FB = 4660 N in west = + 4660 N

The force of wind, Fwi = 880 N in east = -880 N

The force of water, Fwa = 1400 N in east = -1400N

Total three forces are acting on the boat

Fnet= Fb+fwi+Fwa

Fnet= 4660 - 880 - 1400

Fnet= +2380N

Acceleration (a) = Force/mass

= 2380/4040

= 0.59m/s2

6 0

2 years ago

Read 2 more answers

Engineers can determine properties of a structure that is modeled as a damped spring oscillator, such as a bridge, by applying a

Kazeer [188]

The value of spring constant and the oscillator's damping constant is

K= 6605.667008, b= 0.002884387

Explanation:

For Weakly damping spring oscillator

K/m = W_0^2 (at resonance)

K= mW_0^2

=0.206 * ( 2π * 28.5) ^2

=0.206 * (2π)^2 * (28.5)^2

K= 6605.667008

F = - bV

b= -F/V = -F/ -W_0 * m

=F/W_0 * m

= 0.438N / 2π * 28.5 * 0.848

b= 0.002884387

8 0

2 years ago

It is most accurate to describe the genetic material in the nucleus of the cell as

Alex73 [517]

Am not sure exactly what your asking do you mean describing the gentic material in the nucleus as the chromosome or as the strand of DNA

4 0

2 years ago

Helppppppppppppppppppppppppppppp

rusak2 [61]

Nooooooooooooooooooooooooooooooo

6 0

2 years ago

Two large aluminum plates are separated by a distance of 2.0 cm and are held at a potential difference of 170 V. An electron ent

dmitriy555 [2]

To solve this problem it is necessary to apply the concepts related to energy as a function of voltage, load and force, and the definition of Force given by Newton in his second law.

By definition we know that force is equal to

F= ma

Where,

m = mass (at this case of an electron)

a = Acceleration

But we also know that the Energy of an electric object is given by two similar definitions.

$1) E= \frac{F}{q}$

Where,

F= Force

q = Charge of proton/electron

$2) E = \frac{V}{d}$

V = Voltage

d = Distance

Equating and rearrange for F,

$\frac{F}{q} = \frac{V}{d}$

$F = \frac{Vq}{d}$

The two concepts of force can be related to each other, then

$ma = \frac{Vq}{d}$

Acceleration would be,

$a = \frac{Vd}{dm}$

Replacing with our values we have that the acceleration is

$a = \frac{Vq}{dm}$

$a = \frac{(170)(1.6*10^{-19})}{(2*10^{-2})(9.1*10^{-31})}$

$a = 1.49*10^{15}m/s^2$

Now through the cinematic equations of motion we know that,

$V_f^2-V_i^2 = 2ax$

Where,

$V_f =$ Final velocity

$V_i =$ Initial velocity

a = Acceleration

x = Displacement

Re-arrange to find v_f,

$v_f = \sqrt{v_i^2+2ax}$

$v_f = \sqrt{2.5*10^5+2*(1.49*10^{15})(0.1*10^{-2})}$

$v_f = 1.726*10^6 m/s$

Therefore the electron's speed when it is 0.1 cm from the negative plate is $1.726*10^6 m/s$

4 0

2 years ago