PHYSICS MIDDLE SCHOOL

True or false: distance traveled and displacement can be equal.

Answers

Answer 1
Answer:

Answer:

true

Explanation:
Answer 2
Answer:

Answer:

When the object is moving in a straight line distance will be equal to displacement. ... Shortest path = Actual path,because object travelled in a straight line. Displacement and Distance should have same magnitude because the object has not changed its direction.

Explanation:

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Can somebody match the following ???

The space shuttle is located exactly half way between the earth and the moon. Which statement is true regarding the gravitational pull on the shuttle?

Answers

Answer:

The correct answer is option B)

Explanation:

Considering the given question as -

The space shuttle is located exactly half way between the earth and the moon. Which statement is true regarding the gravitational pull on the shuttle? A) The moon pulls more on the shuttle. B) The earth pulls more on the shuttle. C) Both are equal due to equal distances. D) Both are equal due to the mass of the shuttle.

We know that gravitational pull (F) between any two bodies of mass M_(1) and M_(2) is given by -

F = (GM_(1)M_(2) )/(r^(2) ) where 'r' is the distance between the two bodies.

Let ,

M_(e) : Mass of the earth

M_(m) : Mass of the moon

          m            : Mass of the satellite

r_(e)    : Distance of satellite from earth

r_(m)   : Distance of satellite from moon

Given that r_(e)=r_(m)

Let r_(e)=r_(m)=r

Force on satellite by the earth is -

F_(e) = (GM_(e)m )/(r^(2) )

Force on satellite by the moon is -

F_(m) = (GM_(m)m )/(r^(2) )

∵ Mass of earth (M_(e)) > Mass of moon (M_(m))

∴ F_(e) > F_(m)

∴ The gravitational pull of earth on satellite is more than that of the moon.

What unit is similar to light year

Answers

you could use miles
one light year equals 6 trillion miles

What are the 3 parts of the DNA molecule?

Answers

a phosphate group, sugar group and one of the four nitrogen basis 
1. Nitrogenous bases (Adenine,Guanine,Thymine,Cytosine) 
2. Pentose Sugar (Deoxyribose) 
3. Phosphate

A wave's frequency is 2Hz and its wavelength is 4 m. What is the wave's speed?

Answers


Wave speed = (wavelength) x (frequency)

                       =      (4 m)        x  (2 /sec)

                       =               8 m/sec

Final answer:

The speed of a wave is calculated by multiplying the frequency by the wavelength. For a wave with a frequency of 2Hz and a wavelength of 4m, the speed is 8m/s.

Explanation:

The subject of your question is Physics, specifically the behavior of waves. The speed of a wave can be calculated using the equation speed = frequency ×wavelength. Given that the frequency of your wave is 2Hz (hertz) and the wavelength is 4m (meters), we substitute these values into our equation.

Thus, the speed of the wave is 2Hz × 4m = 8 m/s. Therefore, the wave is moving at a speed of 8 meters per second.

Learn more about Wave Speed here:

brainly.com/question/32040742

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How do the circulatory system and the respiratory system work together?

Answers

The circulatory system tends to pump blood around the whole body, while the respiratory system tend to facilitate the exchange of gas in the body so then the blood will look totally fresh. In simpler terms, the heart is connected to the lungs through the means of arteries and veins.

Answer:

The circulatory system tends to pump blood around the whole body, while the respiratory system tend to facilitate the exchange of gas in the body so then the blood will look totally fresh. In simpler terms, the heart is connected to the lungs through the means of arteries and veins.

Explanation:

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. 
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