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VLD [36.1K]
3 years ago
6

Your friend says that inertia is a force that keeps things in their place, either at rest or moving at a constant speed. Do you

agree?
Physics
1 answer:
jek_recluse [69]3 years ago
4 0

Answer:

No

Explanation:

The error in the sentence is that inertia is not a force.

In fact, inertia is just the tendency of an object to keep its state of rest/motion if the net force acting on it is zero. As stated in Newton's First Law, also called Law of Inertia:

"An object at rest will remain at rest and an object in motion will continue its motion with constant velocity if the net force acting on it is zero"

This law basically tells us that as long as there are no forces acting on an object, the object mantains its state of rest/motion. On the contrary, in order to change the state of motion of an object, we need a net force different from zero.

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To determine a waves frequency you must know the??
lutik1710 [3]

Answer: I think, the number of oscillations in a given period of time.

Explanation: Well I guess because in a period time is known as the rate of occurrence of the wave. Hope this helps!

7 0
3 years ago
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Landslides and mudslides can result from both volcanoes and earthquakes.<br><br> true<br> false
EleoNora [17]
The correct answer would be True!
4 0
4 years ago
An 8.0 cm object is 40.0 cm from a concave mirror that has a focal length of 10.0 cm. Its image is 16.0 cm in front of the mirro
svet-max [94.6K]
 We can rearrange the mirror equation before plugging our values in. 
1/p = 1/f - 1/q. 
1/p = 1/10cm - 1/40cm
1/p = 4/40cm - 1/40cm = 3/40cm
40cm=3p  <-- cross multiplication
13.33cm = p

Now that we have the value of p, we can plug it into the magnification equation.

M=-16/13.33=1.2
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6 0
3 years ago
Write two main group of animals​
Nesterboy [21]

Answer:

Animals are classifield as two main groups in the animal kingdom : Vertebrates and invertebrates .

Explanation:

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7 0
3 years ago
Max and Jimmy want to jump on a trampoline. Max begins jumping in a steady pattern, making small waves in the trampoline. Jimmy
mylen [45]

Answer:

x_total = (A + B) cos (wt + Ф)

we have the sum of the two waves in a phase movement

Explanation:

In this case we can see that the first boy Max when he enters the trampoline and jumps creates a harmonic movement, with a given frequency. When the second boy Jimmy enters the trampoline and begins to jump he also creates a harmonic movement. If the frequency of the two movements is the same and they are in phase we have a resonant process, where the amplitude of the movement increases significantly.

         Max

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         Jimmy

              x₂ = B cos (wt + Ф)

         

total movement

             x_total = (A + B) cos (wt + Ф)

 Therefore we have the sum of the two waves in a phase movement

8 0
3 years ago
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