PHYSICS HIGH SCHOOL

The parietal lobe is the portion of the cerebral cortex located below the temporal lobe.Please select the best answer from the choices provided

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F

Answers

Answer 1
Answer:

Answer:

False

Explanation:

Please see the attached file
Answer 2
Answer:

Answer: the answer is false

Explanation:

I just took the test.

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If critical mass is reached, it can cause: A: electrons to split
B: a chain reaction
C: a fusion of uranium nuclei
D: krypton atoms to split into strontium and xenon

Answers

The correct answer is:

B: a chain reaction

Explanation:

A chain reaction is a series of reactions where a reactive output or by-product produces additional reactions to earn a place. In a chain reaction, extremely feedback leads to a self-amplifying series of events.

Chain reactions are one way that systems which are not in thermodynamic stability can release energy or improve entropy in order to enter a state of greater entropy.
If critical mass is reached, it can cause (b.) a chain reaction.

What comes into your mind when you hear the words momentum

Answers

The word momentum means mass and velocity taken together.

What is mass ?

Mass is an intrinsic basic physical quantity which tells us about the amount of matter contained in a body. It is a scalar quantity and it is measured in kilogram(Kg).

What is Velocity?

Velocity is the rate of change of displacement . It is defined as displacement per unit time. It is a vector quantity and measured in meter per second (m/s)

What is momentum?

The product of mass and velocity is momentum. When a body possesses both mass and velocity we say that it has momentum. It is a vector quantity. Its unit is kg m/s

Mathematically we write momentum as,

P = mv

Mathematically we write momentum a

Where, P = momentum

m = mass

v= velocity.

When a force is applied on a body, it changes its momentum. The relationship between force and momentum is given by Newton's second law of motion which states that the rate of change of momentum is directly proportional to the force applied,

F = Δp /Δt

Where F= force

Δp = change in momentum

Δt = time taken for the change in momentum to occur.

To know more on momentum here

brainly.com/question/24030570

#SPJ2

Answer:

In my mind when I hear the word momentum it comes that it is the product of mass and velocity.

What is an isobar?a. a unit of measurement for air pressure
b. a line along which air pressure is constant
c. a region in which the weather is not changing
d. a symbol on a weather map showing wind direction

Answers

Answer:

B.a line along which air pressure is constant

Explanation:

i took the quiz and got it right

Use the Pythagorean theorem to answer this question. A paper airplane is thrown westward at a rate of 6 m/s. The wind is blowing at 8 m/s toward the north. What is the actual velocity of the airplane?2 m/s, northwest
10 m/s, northwest
14 m/s, northwest
48 m/s, northwest

Answers

The correct answer to the question is : 10 m/s , northwest.

EXPLANATION:

As per the question, the velocity of wind V = 8 m/s towards north.

      The velocity of the paper airplane is V' = 6 m/s towards west.

We are asked to calculate the actual velocity of the airplane.

By putting Pythagorean theorem, the actual velocity of the airplane is calculated as -

                  V_(net)^2 =\ V^2+V'^2

                ⇒  V_(net)^2=\ 6^2+8^2

                ⇒  V_(net)^2\ =\ 100

                ⇒  V_(net)=\ √(100)\ m/s

                ⇒  V_(net)=\ 10\ m/s  towards northeast.

Hence, the correct answer is 10 m/s , northwest.              
6^2 + 8^2 = 36 + 64 = 100

sqrt(100) = 10 m/s northwest

Why is a raindrop a particularly damaging element to soil

Answers

Answer:

Raindrops are considered damaging to the soil in the following ways:

  1. If it is too wet or too dry, nutrients in the soil can run off and not make it to the plants' roots, leading to poor growth and overall health.
  2. over-watering or too much rain can also lead to bacteria, fungus, and mold growth in the soil
  3. If the average rainfall is much lower or higher than the ideal, it can lead to significant problems, from drowned crops to lower yields.
  4. The soil can also start to collect bacteria, mold, and fungus, which can then be absorbed by the plant. While this isn’t as common in crops as it is in indoor plants, poor drainage and irrigation systems can lead to these types of growths taking control over your crops.
  5. raindrops when it is excessive can lead to erosion and leaching of the soil
  6. soil loss is mostly affected by increasing runoff discharge of rainwater                                      

Cheers!
Rain drop causes Erosion

Ahmad is riding his bicycle. He finds that he can accelerate from rest at 0.44 m/s^2 for 5 s to reach a speed of 2.2 m/s. The total mass of Christian and his bicycle is 54 kg. Later, he straps some cargo onto the back of his bicycle. The mass of the cargo is 12 kg.• Calculate the force that Christian can exert on his bicycle before picking up the cargo and exerts the same force on his bicycle.

Answers

Answer:

1) The force Christian can exert on his bicycle before picking up the the cargo is 529.74 N

2) The force Christian can exert on his bicycle after picking up the the cargo is 647.46 N

Therefore, Christian has to exert more force on his bike after picking up the cargo

Explanation:

The given parameters are;

The mass of Christian and his bicycle = 54 kg

The mass of the cargo = 12 kg

1) The force Christian can exert on his bicycle before picking up the the cargo = Mass of Christian and his bicycle × Acceleration due to gravity

∴ The force Christian can exert on his bicycle before picking up the the cargo = 54 kg × 9.81 m/s² = 529.74 N

2) The force Christian can exert on his bicycle after picking up the the cargo = (54 + 12) kg × 9.81 m/s² = 647.46 N

Therefore, Christian has to exert more force on his bike after picking up the cargo.
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