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Serggg [28]
3 years ago
6

A high school physics student is sitting in a seat read-

Physics
1 answer:
Nataly_w [17]3 years ago
7 0

The equilibrium condition allows finding the result for the force that the chair exerts on the student is:

  • The reaction force that the chair exerts on the student's support is equal to the student's weight.

Newton's second law gives the relationship between force, mass and acceleration of bodies, in the special case that the acceleration is is zero equilibrium condition.

            ∑ F = 0

Where F is the external force.

The free body diagram is a diagram of the forces on bodies without the details of the shape of the body, in the attached we can see a diagram of the forces.

Let's analyze the force on the chair.

            N_{chair} - W_{chair} - W_{student} = 0 \\ \\N_{chair} = W_{chair} + W_{student}

Let's analyze the forces on the student.

          N_{student} - W_{student} = 0  \\N_{student} = W _{student}

           

In conclusion using the equilibrium condition we can find the result for the force that the chair exerts on the student is:

  • The reaction force that the chair exerts on the student's support is equal to the student's weight.

Learn more here: brainly.com/question/18117041

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A 16.0 g bullet is moving to the right with speed 250 m/s when it hits a target and travels an additional 22.6 cm into the targe
bogdanovich [222]

Answer:

The magnitude will be "2212 N".

Explanation:

The given values are:

Initial speed, u = 250 m/s

Final speed, v = 0

Mass, m = 16.0 = 0.016 kg

Distance, d = 22.6 cm

On converting cm into m, we get

d = 0.226 m

As we know,

⇒  v^2-u^2=-2ad

⇒  a=\frac{v^2-u^2}{-2d}

On putting the estimated values, we get

⇒    =\frac{(0)^2-(250)^2}{-2\times 0.226}

⇒    =\frac{0-62500}{-0.452}

⇒    =13,8276 \ m/s^2

Now,

Force, F=ma

On putting values, we get

⇒            =0.016\times 138276

⇒            =2212 \ N (magnitude)

4 0
3 years ago
Which of the following is the smallest in mass?
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A 142 kg boulder is located near the edge of a cliff 25 m above the ground. What is the gravitational potential energy of the bo
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8 0
3 years ago
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1. (1 pt) Which of these is a physical property of wood? A. Wood can burn. B. Wood can rot. C. Wood does not rust. D. Wood is so
anygoal [31]
A physical property can be seen or a change in color.
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4 years ago
If the density of the fuel is 0.821 g/ml, what mass of fuel has the airplane taken on?
bija089 [108]

<em>Mass of fuel has the airplane took on = 167.89 kg</em>

\boxed{\boxed{\bold{Further~explanation}}}

Density is a quantity derived from the mass and volume

density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of mass

The unit of density can be expressed in g / cm3 or kg / m3

  • Density formula:

\large{\boxed{\bold{\rho~=~\frac{m}{V} }}}

ρ = density

m = mass

v = volume

A common example is the water density of 1 gr / cm3

If we look at fuel capacity data such as Airbus which has a maximum capacity of 204, 5 liters then the mass of fuel it carries is

ρ = 0.821 gr / ml = 0.821 kg / l

  • mass = ρ . V

mass = 0.821 kg / l . 204.5 liters

mass = 167.89 kg

So the mass of fuel carried by aircraft is 167.89 kg

\boxed{\boxed{\bold{Learn~more}}}

density and molarity of the solution brainly.com/question/8151398

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the mass of the fuel in kilograms brainly.com/question/8312085

the relative density of the fuel

brainly.com/question/10889330

Keywords: density, mass, volume, aircraft, fuel, derivative quantities

7 0
4 years ago
Read 2 more answers
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