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Zina [86]
3 years ago
7

Substance X is placed in a container with substance Y.

Physics
1 answer:
balandron [24]3 years ago
4 0

Answer:

Substance X will rise due to convection.

Explanation:

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The prop blades of an airplane spin with a linear velocity of 875 m/s and have a centripetal acceleration on the farthest edge o
storchak [24]

The radius of the prop blade of an airplane is determined as 4.25 m.

<h3>Radius of the prop blade</h3>

The radius of the prop blade of an airplane is calculated as follows;

a = v²/r

where;

  • v is the linear speed
  • r is the radius of the prop blade
  • a is the centripetal acceleration

r = v²/a

r = (875²)/(180,000)

r = 4.25 m

Thus, the radius of the prop blade of an airplane is determined as 4.25 m.

Learn more about centripetal acceleration here: brainly.com/question/79801

#SPJ1

4 0
2 years ago
Explain why airplane pilots should know wind velocity and not just wind speed during a flight
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Air speed is how fast you are peddling over the ground, wind speed is how fast the wind is blowing above the ground.Depending on the correlation between the two with direction thrown the pilot knows what sort of resistance he is flying against.
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3 years ago
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ASK YOUR TEACHER Red blood cells often can be charged. Two red blood cells are separated by 1.11 m and have an attractive electr
makvit [3.9K]

Answer:

q2 = -1.61*10^-5 C.

Explanation:

It was given that,

F = 0.985N

q1 = +8.40 X10-6 C

q2 = ?

r = 1.11 m

k = 9 x 10^9 (standard)

It generally follows that, if force is attractive, charge will be negative.

force, F = kq1q2/r^2

0.985 = 9*10^9*8.40*10^-6*q2/1.11^2

75600q2 = 0.985*1.11^2

75600q2 = 1.2136

q2 = 1.2136/75600 = 1.60529

q2 = -1.61*10^-5 C.

7 0
3 years ago
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Two objects, one with a mass of m and one with a mass of 4m are attracted to each other by a gravitational force. If the force o
Natali [406]

By 2nd Newton's Law.

F =m*g

For 1st body

Let it's force be x

thus,

x = m*g --------- eqn 1

For mass 2,

F = 4m*g

g = F/4m -------- eqn 2

For the first body's force interms of second body substitute eqn 2 into 1

x = m*(F/4m)

x = <u>m</u><u>*</u><u>F</u>

4m

x = F/4

Therefore, the force on mass m interms of F is

F/4.

5 0
3 years ago
Which statements describe a good hypothesis? Check all that apply. A good hypothesis is based on one’s personal opinion. A good
I am Lyosha [343]
A good hypothesis is based on one’s personal opinion. A good hypothesis can be tested. <span>A good hypothesis provides a possible explanation to answer a scientific question. </span>
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3 years ago
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