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deff fn [24]
3 years ago
8

Tornadoes form in unusually violent thunderstorms when there is sufficient (1) instability and (2) wind shear present in the low

er atmosphere. Elaborate on what does instability mean when discussing the formation of a tornado?
A) dry air in the middle atmosphere being rapidly cooled by rain
B) winds at all levels of the atmosphere are strong and turn with height
C) an isolated strong thunderstorm just ahead of a squall line that merges with the squall line
D) very warm, humid conditions in the lower atmosphere; cooler than usual conditions in the upper atmosphere
Physics
2 answers:
uranmaximum [27]3 years ago
8 0

Answer:

D) very warm, humid conditions in the lower atmosphere; cooler than usual conditions in the upper atmosphere

Explanation:

Tornadoes often occur because there is a sudden change in the direction of the air in upper atmosphere layers, creating a horizontal shift, this makes for the air to start swirling horizontally, this is created when a thunderstorm causes changes in the air direction in high altitudes that is translated to tornadoes on earth.

zvonat [6]3 years ago
7 0

its D

i hope this helps to future test takers. i took the test and had to retake it because their wasn't an answer

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A satellite is in a circular orbit 8200 km above the Earth’s surface; i.e., it moves on a circular path under the influence of n
andreyandreev [35.5K]

Answer:

5.23km/s

Explanation:

Given

Radius of Earth = 6.37 * 10^6 m

Altitude of Satellite = 8200km = 8200 * 10³m = 8.2 * 10^6 m

Gravity Acceleration on Satellite Altitude = 1.87965m/s²

For a satellite to remain in circular orbit, then it means the acceleration of gravity must be exact as the centripetal acceleration.

Centripetal Acceleration = V²/R

So, Acceleration of Gravity (A)= Centripetal Acceleration = V²/R

Make V the subject of formula

A = V²/R

V² = AR

V = √AR

Where R = (radius of earth) + (altitude of satellite)

R = 6.37 * 10^6 + 8.2 * 10^6

R = 14.57 * 10^6m

A = 1.87965m/s²

V = √(1.87965 * 14.57x10^6)

V = √27386500.5

V = 5233.211299001789

V = 5233.2113 m/s ------- Approximated

V = 5.23km/s

7 0
3 years ago
Help wit these questions someone.
romanna [79]

In series circuit, Req = R₁ + R₂ + R₃ + ···

In parallel circuit, \frac{1}{Req}  = \frac{1}{R1} + \frac{1}{R2} + \frac{1}{R3} +...

<h3>Q7.</h3>

total resistance in the upper branch = R₂ + R₃ = R₂ + 2

\frac{1}{Req} = \frac{1}{R2+R3} + \frac{1}{R1}

\frac{1}{4} = \frac{1}{R2+2} +\frac{1}{6}

R₂ + 2 = 12

R₂ = 10Ω

<h3>Q8.</h3>

\frac{1}{Req} = \frac{1}{R2+R3} + \frac{1}{R1}

\frac{1}{Req} = \frac{1}{2+1} + \frac{1}{4}

Req = 1.7Ω

7 0
3 years ago
Can the tangent line to a velocity vs. time graph ever be vertical? Explain.
34kurt

Answer:

No. Because it would correspond to zero Instantaneous acceleration.

Explanation:

hope this helps

7 0
3 years ago
What is work? how do we solve for work?​
slava [35]

Answer: Work can be calculated with the equation: Work = Force × Distance. The SI unit for work is the joule (J), or Newton • meter (N • m). One joule equals the amount of work that is done when 1 N of force moves an object over a distance of 1 m.

Explanation:

5 0
3 years ago
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<span>The gravity of earth depends on the magnetism from its core. as this magnetism increases, the magnitude of the gravity increases.</span>
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