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Alchen [17]
3 years ago
11

What does aerospace engineering have to do with physics

Physics
1 answer:
Vilka [71]3 years ago
7 0
Aerospace engineering is related to physics because the career consists of almost all physics. Aerospace engineers work to understand aerodynamics (the motion of air and how it interacts with objects, particularly in the sky). Aerodynamics is a concept in physics, thus aerospace engineers work with physics.
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Which explains why light bends when it passes from air to water?
Serggg [28]
Answer: D 
Key thing to keep note, is "refraction"... 
Look at some experiments on YouTube, it's helps me a lot. 
4 0
3 years ago
Read 2 more answers
Please help!! :)
Andrews [41]

Answer:

Option D. 9.47 V

Explanation:

We'll begin by calculating the equivalent resistance of the circuit. This can be obtained as follow:

Resistor 1 (R₁) = 20 Ω

Resistor 2 (R₂) = 30 Ω

Resistor 3 (R₃) = 45 Ω

Equivalent Resistance (R) =?

R = R₁ + R₂ + R₃ (series connections)

R = 20 + 30 + 45

R = 95 Ω

Next, we shall determine the current in the circuit. This can be obtained as follow:

Voltage (V) = 45 V

Equivalent Resistance (R) = 95 Ω

Current (I) =?

V = IR

45 = I × 95

Divide both side by 95

I = 45 / 95

I = 0.4737 A

Finally, we shall determine, the voltage across R₁. This can be obtained as follow:

NOTE: Since the resistors are in series connection, the same current will pass through them.

Current (I) = 0.4737 A

Resistor 1 (R₁) = 20 Ω

Voltage 1 (V₁) =?

V₁ = IR₁

V₁ = 0.4737 × 20

V₁ = 9.47 V

Therefore, the voltage across R₁ is 9.47 V.

8 0
3 years ago
An artillery shell is fired with an initial speed of 300m/s at 55 deegry about the horizontal,it explodes on a mountain side 42s
photoshop1234 [79]

Answer:

x = 7226.94 m

y = 1677.4 m

Explanation:

This is a classic problem of a parabolic move. Let's analyze the given data.

The speed is 300 m/s but it's fired at 55°, so the x and y component of the speed would be:

Vx = 300 cos55 = 172.07 m/s

Vy = 300 sin55 = 245.75 m/s

Now, to get the x and y components of the shell, we need to apply the following expressions:

X = Xo + Vx*t    (1)

Y = Yo + Vy*t - 1/2 gt²   (2)

Xo and Yo is 0, and we already have the speed in x and y, so the components are:

X = 0 + (172.07)(42)

<h2>X = 7226.94 m</h2>

For the y component:

Y = 0 + (245.75)(42) - 1/2 (9.8)(42)²

Y = 10321.5 - 8643.6

<h2>Y = 1677.4 m</h2><h2></h2>

Hope this helps

8 0
3 years ago
A particle that is moving along a straight line accelerates from 40 cm/s to 20 cm/s in 5.0 s and then has a constant acceleratio
Marrrta [24]

Answer:

Average speed,  v_{avg}=43.33\ \rm cm/s

Explanation:

Given:

  • Initial speed, u=40 cm/s
  • final speed , v=20 cm/s
  • Time taken, t=5 s

<u>First case</u>

Using equation of motion we have

2as=v^2-u^2\\2as=20^2-40^2\\as=-600\\

Now using,

v=u +at\\20=40+a\times5\\a=-4\ \rm cm/s^2

now putting the value of a in first equation we get

s=150\ \rm cm

<u>Second case</u>

Accelerationa=20\ \rm cm/s^2

Time taken t=4\ \rm s

using equation of motion in one Dimension we have

s=ut+\dfrac{at^2}{2}\\\\s=20\ties 4+\dfrac{20\times 4^2}{2}\\s=240\ \rm cm

Average speed is equal to total distance travelled per unit total time taken

v_{avg}=\dfrac{150+240}{5+4}\\v_{avg}=43.33\ \rm cm/s

4 0
4 years ago
Read 2 more answers
Operating speed of an automatic washing machine is 5.5 rad s-1 . After loading dirty clothes and pressing a start button, the tu
Solnce55 [7]

The rotational kinematics allows finding that the response for the time to reach the washing speed is

         t = 4.26 s

Kinematics studies the motion of bodies, in the special case that the motion is circular is called rotational kinematics.

                  θ = w₀ t + ½ α t²

Where θ is the angle, w₀ are the initial angular velocity, α is the angular acceleration and t is the time

Rotational  kinematics is written in units of radians, therefore all magnitudes must be reduced,

             θ = 6 rev (\frac{2\pi }{1rev}  ) = 12π rad

In this case the washing machine starts from rest, therefore the initial rotational  velocity is zero

              θ = ½ α t²

              t = \sqrt{\frac{2 \theta}{\alpha  } }

              t = \sqrt{\frac{2 \ 12\pi }{4.15} }

              t = 4.26 s

In conclusion using  rotational  kinematics we can find that the answer for the time to reach the washing speed is

         t = 4.26 s

Learn more about rotational  kinematics here:

brainly.com/question/20338754

4 0
3 years ago
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