A(n) __________ is a fast-flowing river of air at the boundary between the troposphere and stratosphere.

1 answer:

7 0

This is the jet stream. This air current flows from west to east along a typically-meandering path that is often used as a predictor of weather conditions. These currents are typically formed from the fact that the equator is warmer than the poles, and this allows the different-density air masses to develop an eastward-moving component.

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wallace and vernonville are 192 miles apart. A car leaves wallace traveling towards vernonville, and another car leaves vernonvi

Anastaziya [24]

1 hour 36 minutes = 1 36/60 = 1 3/5 = 1.6 hours

Speed of car leaving wallace be x mph

Speed of car leaving vernonville will be ( x+10) mph

1.6 ( x + x+10) = 192

2x + 10 = 120

2x = 110

x = 55

ANSWER Wallace car = 55 mph Vernonville = 65mph

Therefore, the average speeds of both cars are 55 mph for the Wallace car and 65 mph for the Vernonville.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

3 0

3 years ago

A racing car reaches a speed of 42 m/s. It then begins a uniform negative acceleration, using its parachute and braking system,

NARA [144]

As per the question the initial speed of the car [ u] is 42 m/s.

The car applied its brake and comes to rest after 5.5 second.

The final velocity [v] of the car will be zero.

From the equation of kinematics we know that

$v=u+at$ [ here a stands for acceleration]