True or false: The jet stream carries cold air to the tropics and warm air to the poles

Answers

Answer 1
Answer:

False. The jet stream does not carry cold air to the tropics and warm air to the poles.

What is the jet stream at high altitude?

The jet stream is a high-altitude, fast-moving air current in the atmosphere that generally flows from west to east. It is caused by the temperature differences between the polar regions and the mid-latitudes.

In reality, the jet stream tends to separate cold polar air from warmer air in the mid-latitudes. It meanders and can have a significant impact on weather patterns, but its primary function is not to transport warm or cold air to the poles or tropics. Instead, it plays a crucial role in the development and movement of weather systems, affecting things like storm tracks and weather conditions in different regions.

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Answer 2
Answer:

Final answer:

The jet stream does not carry cold air to the tropics or warm air to the poles.

Explanation:

The statement 'The jet stream carries cold air to the tropics and warm air to the poles' is false. The jet stream is a narrow band of strong wind in the upper atmosphere that flows from west to east. It generally moves air masses from west to east across the globe, but it does not carry cold air to the tropics or warm air to the poles. Instead, it helps distribute weather systems and influences the movement of storms.

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Fireworks change _____ into ______ and ________ energy.

Answers

Fireworks change chemical into thermal and radiant energy

BRAINLIST | Why are there some areas of the country where wind power is not the best option?

Answers

Answer:

In contrast, wind turbines produce no greenhouse gases when generating electricity. We should note that both noise and visual pollution are environmental disadvantages of wind turbines. However, these factors don't have a negative impact on the earth, water table or the quality of the air we breathe.

Determine the amount of potential energy of a 5.0Kg book that is moved to three different shelves on a bookcase. The height of each shelf is 1.0 m, 1.5 m, and 2.0 m.

Answers

The amount of potential energy of a 5.0-kilogram book that is moved to three different shelves on a bookcase would be 49 Joules ,73.5 Joules, and 98 Joules respectively.

What is mechanical energy?

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy.

Similarly, the total potential energy of the crane lift would be

PE = m*g*h

The potential energy of the book at 1.0 m is (5x9.8x1)= 49 Joules

The potential energy of the book at 1.5 m is (5x9.8x1.5) =73.5 Joules

The potential energy of the book at 2.0 m is (5x9.8x2)=98 Joules

Thus, the amount of potential energy of a 5.0-kilogram book that is moved to three different shelves on a bookcase would be 49 Joules,73.5 Joules, and 98 Joules respectively.

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Formula to find gravitational potential energy:
mgh
m: mass
g: gravitational acceleration
h: height (relative to reference level)

so the P.E. at 1.0.m is (5x9.8x1)= 49J
P.E. at 1.5m is (5x9.8x1.5) =73.5J
P.E. at 2.0m is (5x9.8x2)=98J

You are looking at a flower with 5 petals, 5 sepals, 1 pistil, and 10 stamens. Is this a monocot or a dicot plant? -Need this ASAP! thank you all inadvance!!

Answers

Dicot plant
Monocot:
~3 or a multiple of three petals (3, 6, 9, etc.) 

Dicot:
~4, 5 or multiples of 4 or 5 (5, 4, 8, 10, 12, 20, 15, etc.)

^^^^^ simple explanation of the petals


two objects were lifted by a machine. one object had a mass of 2 kilograms and was lifted at the speed of 2 m/s. the other had a mass of 4 kilograms and was lifted at a rate of 3 m/s. which object had more kinetic energy while it was being lifted?"

Answers

to find the kinetic energy KE=1/2 × mass × velocity ^2
for object 1 ke= 1/2(2)(2^2)=4 J
for object 2 ke= 1/2(4)(3^2)=18J
meaning object 2 as more kinetic energy

A biker accelerates from Om/s to 8m/s ub 3 seconds. What is his acceleration? Isthis acceleration higher than that of a car wihich accelerates from 0 to 30m/s in
8 seconds

Answers

Answer:

The acceleration of the biker is 2.67m/s² while that of the car is 3.75m/s². So, the acceleration of the biker is NOT HIGHER than that of the car.

Explanation:

Given that,

acceleration of biker A= ?

Initial velocity of biker Vi = Om/s

Final velocity of biker Vf = 8m/s

Time taken (t) = 3 seconds

Since acceleration is the rate of change of velocity per unit time

i.e Acceleration = (Vf - Vi) / t

A = (8m/s - 0m/s) / 3s

A = 2.67 m/s²

To know which is higher, calculate the acceleration of the car

acceleration of car A= ?

Initial velocity of car Vi = Om/s

Final velocity of car Vf = 30m/s

Time taken (t) = 8 seconds

Acceleration = (30m/s - 0m/s) / 8s

A = 30m/s / 8s

A = 3.75 m/s²

Since, the acceleration of the biker is 2.67m/s² while that of the car is 3.75m/s², the acceleration of the biker is NOT HIGHER than that of the car.