PHYSICS MIDDLE SCHOOL

Gravity affects all mass, how?

Answers

Answer 1
Answer:

Answer:

Everything that has mass has gravity. The greater the amount of mass, the greater the gravity. And the closer objects are to each other, the stronger their gravitational pull is. The reason we have weight is because of the gravitational pull on our bodies (our mass) by the Earth.

Explanation:
Answer 2
Answer:

Answer:

Everything that has mass has gravity. The greater the amount of mass, the greater the gravity. And the closer objects are to each other, the stronger their gravitational pull is. The reason we have weight is because of the gravitational pull on our bodies (our mass) by the Earth.

Explanation:

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As part of a study of the effects of urbanization, local scientists have taken many data samples over the course of 20 years. The scientists detected increases in local soil erosion, carbon dioxide levels, and air temperatures. What most likely caused these changes?A erosion of topsoil B altered water flow C deforestation of woodlands D decreased water quality
What is a complete wave?

Which factor MOST directly affects the flow of ocean currents?A)
differences in pressure
B)
differences in temperature
C)
Earth's revolution round the Sun
D)
the Moon's revolution round Earth

Answers

Answer:

Correct Answer is B (Differences in temperature)

Explanation:

One of the main cause of ocean current to occur is variation of temperature of different layer of oceanic water.Water which have high temprature is less dense and this Less density water float above the surface of high density water. When this less density water reached on the surface of ocean that time wind which blows on the surface water makes the water cool or in other words we can say that water released  its heat to the surrounding environment. when water becomes cool it again shifted in downward direction and less density water  will moves upward. In this way this process will continue and hence ocean current is created.
The factor that most affects the flow of ocean currents is B. differences in temperaturethreAnswer here

33. Which statement best describes a bacteria cell?a. It contains more than one cellb. It is a complete organismc. It is part of a larger organismd. It contains different kinds of cells

Answers

Answer: The correct answer is- It is a complete organism.

Bacteria is a unicellular microscopic organism that is a prokaryote. It means that the body of bacteria is made up of one cell only and it is responsible for all the essential activities required for the survival of bacteria.

Therefore, bacterial cell is a complete organism.
probably, d. it contains different kinds of cells.

I hope this's useful ^_~!!

A model rocket rises from rest with constant acceleration of 106m/s2.what is the rocket speed at a height of 3.2m

Answers

At a height of 3.2 meters, the final speed of the model rocket is 26.05 m/s.

Given the following data:

  • Initial speed = 0 m/s (since the model rocket accelerated from rest).
  • Acceleration = 106 m/s^2
  • Distance (height) = 3.2 meters.

To find the final speed of the model rocket, we would use the third equation of motion;

V^2 = U^2 + 2aS

Where:

  • V is the final speed.
  • U is the initial speed.
  • a is the acceleration.
  • S is the displacement or distance covered.

Substituting the given parameters into the formula, we have;

V^2 = 0^2 + 2(106)(3.2)\n\nV^2 = 0 + 678.4\n\nV = √(678.4)

Final velocity, V = 26.05 m/s

Read more: brainly.com/question/8898885

We can solve the problem by using the following equation:

v_f ^2 -v_i^2 =2aS

where

vf is the final speed of the rocket

vi=0 is the initial speed of the rocket (it starts from rest)

a=106 m/s^2 is the rocket's acceleration

S=3.2 m is the distance covered by the rocket

Re-arranging the equation, we find the velocity of the rocket after 3.2 m:

v_f = √(2aS)=√(2(106 m/s^2)(3.2 m))=26.0 m/s

The angle of incidence and the angle of reflection are measured from the_____, the perpendicular to the surface.

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I believe it is angles

Certain _____ substances have been used to determine the absolute age of objects up to several _____ years.A. stable; billions
B. stable; millions
C. unstable; billions
D. unstable; millions

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The correct answer would be B

the correct answer is (b)stable;millions

How is heat transferred through empty space

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I'm earth the o zone layer is keeping it warm but not hot or cold and the heat transferred by heat waves that is why we use sunscreen because during summer they can hurt us.
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