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muminat
3 years ago
11

The scientist to first introduce the concept of inertia was

Physics
1 answer:
skelet666 [1.2K]3 years ago
4 0
The first scientist to introduce the concept of inertia was Galileo
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An airplane is traveling at 250 m/s in level flight. If the airplane is to make a change in direction, it must travel is a horiz
Nonamiya [84]

Answer:

The radius of curvature of the curved path of the airplane is 23784.356 meters (23.784 kilometers).

Explanation:

We assume that airplane can be represented as a particle. The free body diagram of the vehicle is presented below as attachment, whose variables are:

W - Weight of the airplane, measured in newtons.

F - Lift, measured in newtons.

\theta - Banking angle, measured in sexagesimal degrees.

The equations of equilibrium associated with the airplane are, respectively:

\Sigma F_{r} = F\cdot \sin \theta = m\cdot \frac{v^{2}}{R} (Eq. 1)

\Sigma F_{z} = F\cdot \cos \theta - W = 0 (Eq. 2)

From (Eq. 2):

F = \frac{W}{\cos \theta}

In (Eq. 1):

W\cdot \tan \theta = m\cdot \frac{v^{2}}{R}

By using the definition of weight, we eliminate the mass of the airplane:

g\cdot \tan \theta = \frac{v^{2}}{R}

Where:

g - Gravitational acceleration, measured in meters per square second.

v - Speed, measured in meters per second.

R - Radius of curvature, measured in meters.

Lastly, we clear the radius of curvature with the expression:

R = \frac{v^{2}}{g\cdot \tan \theta}

If we know that v = 250\,\frac{m}{s}, g = 9.807\,\frac{m}{s^{2}} and \theta = 15^{\circ}, the radius of curvature is:

R = \frac{\left(250\,\frac{m}{s} \right)^{2}}{\left(9.807\,\frac{m}{s^{2}} \right)\cdot \tan 15^{\circ}}

R = 23784.356\,m

The radius of curvature of the curved path of the airplane is 23784.356 meters (23.784 kilometers).

6 0
4 years ago
What does relative humidity measure?
FromTheMoon [43]

Answer:

It is D

Explanation:

edge unit test review thing

6 0
3 years ago
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Integrated circuits are manufactured on chips made of the element.
Finger [1]
The "substrate" of the integrated circuit is super-pure silicon.
7 0
3 years ago
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If a hockey puck slides on a perfectly frictionless surface, it will eventually slow down because of its inertia.
Nadya [2.5K]
The answer is False it will keep gliding forever
3 0
3 years ago
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A liquid solvent is added to a flask containing an insoluble solid. The total volume of the solid and liquid together is 84.0 mL
noname [10]

Answer:

The mass of solid is 173.45 g.

Explanation:

Given that,

Total volume of solid and liquid = 84.0 mL

Mass of liquid = 26.5 g

Density of liquid = 0.865 g/mL

Density of solid = 3.25 g/mL

We need to calculate the volume of liquid

Using formula of density

\rho_{l}=\dfrac{m_{l}}{V_{l}}

V_{l}=\dfrac{m_{l}}{\rho_{l}}

Put the value into the formula

V_{l}=\dfrac{26.5}{0.865}

V_{l}=30.63\ mL

We need to calculate the volume of solid

Volume of solid = Total volume of solid and liquid- volume of liquid

V_{s}=84.0-30.63

V_{s}=53.37\ mL

We need to calculate the mass of solid

Using formula of density

\rho_{s}=\dfrac{m_{s}}{V_{s}}

m_{s}=\rho_{s}\timesV_{s}

Put the value into the formula

m_{s}=3.25\times53.37

m_{s}=173.45\ g

Hence, The mass of solid is 173.45 g.

3 0
3 years ago
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