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3 years ago

Is an imaginary "line" from the earth to the moon a line, a ray, or a segment? Why?

Physics

1 answer:

igomit [66]3 years ago

5 0

Answer;

- Line segment

Explanation;

"from earth to moon" implies endpoints at both locations and it is thus a line segment

A line extends forever in both directions, a line segment is just part of a line. It has two endpoints, and a ray starts at one point and continues on forever in one direction.

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Viktor [21]

Aquifer- the layer permeable rock that has connecting pores & transmit water freely, the artesian well water rises to the surface.

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3 years ago

What is the measure of a change in an object’s velocity?

tiny-mole [99]

It's a measure of the acceleration

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3 years ago

What is the use of scientific knowledge and research for an action

koban [17]

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3 years ago

2H, +0,-> 2H,0<br> How many hydrogen atoms are on the left side of the equation?

marin [14]

Answer:

Explanation:

The reaction between hydrogen and oxygen gives water (H2O)

2H,+O, -> 2H2O

Oxygen is a gas O, = O2

Balancing both sides

let , be x

2x = 4

$x = \frac{4}{2}$

x= 2

Therefore, 2H2 = 4 hydrogen

8 0

2 years ago

A wind is blowing a small ice fishing shed along the ice to the east with a 800N force. The shed weighs 2,200N. What would the l

e-lub [12.9K]

Answer:

0.36

Explanation:

The maximum force of friction exerted by the surface is given by:

$F_f = \mu N$ (1)

where

$\mu$ is the coefficient of friction

N is the normal reaction

The shed's weight is 2200 N. Since there is no motion along the vertical direction, the normal reaction is equal and opposite to the weight, so

N = 2200 N

The horizontal force that is pushing the shed is

F = 800 N

In order for it to keep moving, the force of friction (which acts horizontally in the opposite direction) must be not greater than this value. So the maximum force of friction must be

$F_f = 800 N$

And substituting the values into eq.(1), we can find the maximum value of the coefficient of friction:

$\mu = \frac{F_f}{N}=\frac{800}{2200}=0.36$

6 0

3 years ago