PHYSICS MIDDLE SCHOOL

Why some air masses are cool, cold, warm, and hot as well as moist or dry?

Answers

Answer 1

Answer:

Answer:

Explanation:

Often times, the property of air masses is a function of where they originate from especially with respect to latitude.

An air mass is certain amount of air with some unique set of temperature and vapor component.

Air masses differs from places to places based on where they originate.
Continental air masses are usually dry and cold because there is little to no water on a land mass.
Air masses that originates from the surface of the ocean are predominantly moist.
In polar regions, the air mass is cold.
Around the tropics, they are usually warm due to insolation here.

Answer 2

Answer:

Answer:

very an explainfull question try again with another type of question

Explanation:

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What is the acceleration of a truck with a mass of 2,000 kg when its brakes apply a force of 10,000 N?

Answers

Answer:

5m/s2

Explanation:

Data obtained from the question include:

m (mass) = 2000 kg

F (force) = 10000N

a (acceleration) =?

Using the formula F = ma, the acceleration of the truck can be obtained as follow:

F = ma

a = F/m

a = 10000/2000

a = 5m/s2

The acceleration of the truck is 5m/s2

Final answer:

The acceleration of the truck when the brakes apply a force of 10,000 N is calculated using Newton's second law of motion (a = F/m) as 5 m/s².

Explanation:

The acceleration of a truck can be calculated using Newton's second law of motion which states that the acceleration of an object is the net force acting on it divided by its mass. This can be written as a = F/m, where a is acceleration, F is force, and m is mass. In this case, the force is the force applied by the brakes, which is 10,000 N and the mass of the truck is 2,000 kg. Applying the formula, a = 10000 N / 2000 kg = 5 m/s². Therefore, the acceleration of the truck when its brakes apply a force of 10,000 N is 5 m/s².

Learn more about Physics - Newton's second law of motion here:

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Figure 1.18 (Chapter 1) shows the Hoover Dam Bridge overthe Colorado River at a height of 271 m. If a heavy object is
dropped from the bridge, how much time passes before the
object makes a splash?

Answers

Answer: 7.436 s

Explanation:

This situation is related to vertical motion, specifically free fall and can be modelled by the following equation:

$y=y_(o)+V_(o) t+(gt^(2))/(2)$

Where:

$y= 0m$ is the final height of the object (when it makes splash)

$y_(o)=271 m$ is the initial height of the object

$V_(o)=0 m/s$ is the initial velocity of the object (it was dropped)

$g=-9.8m/s^(2)$ is the acceleration due gravity (directed downwards)

$t$ is the time since the objecct is dropped until it makes splash

$0=y_(o)+0+(gt^(2))/(2)$

Clearing $t$ :

$t=\sqrt{(-2y_(o))/(g)}$

$t=\sqrt{(-2(271 m))/(-9.8m/s^(2))}$

Finally:

$t=7.436 s$

. Which is the transfer of energy as waves moving through space?conduction
insulation
convection
radiation

Answers

Answer:

Radiation is the answer to your question

Which type of volcano forms when eruptions contain mostly dust, ash, and cinders?composite cone volcano
cinder volcano
hot vent volcano
shield volcano

Answers

Your answer would be Cinder Volcanoes :)

What is Newtons third law

Answers

Newton's third law is for every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.

For every action, there is an equal and opposite reaction.

The resistance of moving surfaces produces ________?Friction always results in a loss of ______ in the form of _____ which enters the atmosphere.
Friction can sometimes be the result of the attraction of different substances which are in contact with one another. true or false
Oil or water clinging to a surface of a jar is a example of ______________

Answers

The resistance of moving surfaces produces friction.
Friction always results in a loss of energy in the form of heat which enters the atmosphere.
True.
Oil or water clinging to a surface of a jar is an example of...
The last one I believe is either fraction or adhesion.

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