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Y_Kistochka [10]
1 year ago
13

Why is soil considered a non-renewable resource?

Physics
2 answers:
Sever21 [200]1 year ago
7 0

Answer:D

Explanation: It is considered non renewable, it takes hundreds of years to renovate and because our life span as humans is very limited we don’t get to see how it regenerates.

svetlana [45]1 year ago
6 0
D.soil can only be formed by natural processes…
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A 1500 kg car traveling 5.0 m/s collides head on with a 3000 kg truck traveling
Setler [38]
  • m1=1500kg
  • m_2=3000kg
  • v_1=5m/s
  • v_2=7m/s

Using law of conservation of momentum

\\ \sf\Rrightarrow m_1v_1-m_2v_2=(m1+m2)v_3

\\ \sf\Rrightarrow 1500(5)-3000(7)=(1500+3000)v_3

\\ \sf\Rrightarrow 7500-21000=4500v_3

\\ \sf\Rrightarrow -13500=4500v_3

\\ \sf\Rrightarrow v_3=-3m/s

6 0
3 years ago
E Describe the meaning of a line crossing the x-axis in a<br> velocity-time graph.
gizmo_the_mogwai [7]

Answer:

A line crossing the x-axis in a velocity-time graph means that the moving object has changed its direction.

Explanation:

Velocity-Time graph:

A velocity-time graph is a two dimensional graph with velocity at its y-axis and time at its x-axis. At any point, value of y represents the velocity and value of x represents the time. The slope of the graph gives us the acceleration or deceleration of the moving object.

In a velocity-time graph:

- A straight line represents constant velocity.

- A diagonal line means that the velocity of a body is changing.

*Referring to the figure attached with the answer*

The velocity of the moving object increases at a constant rate for the first 10 minutes. Then the velocity is 60 m/min for the next 5 minutes. After that the velocity is decreasing. Till 30th minute when the velocity is at 0 m/min.

What happens here?

Velocity is a vector quantity. It has some direction. In a velocity-time graph, we are only concerned with two directions of velocity:

- Forward direction

- Backward direction

So, the object stops at 30th minute and starts moving in the reverse direction after that with an increasing velocity. <u>The point where the line cuts the x-axis is basically the point where the object starts moving in the reverse direction.</u>

8 0
3 years ago
Does an object in inelastic collisions exert less force than elastic collisions?
Montano1993 [528]

Answer:

The object exerts <em>same</em> amount of force in elastic and inelastic collisions.

Explanation:

The force an object exerts is not different between the two types of collisions. What changes from elastic to inelastic is the amount of energy transformed from kinetic to other type during an inelastic collision.

7 0
3 years ago
Which type of wave has a wave perpedicular to the disturbance? mechanical surface longitudinal tranverse
cricket20 [7]
<span>Which type of wave has a wave perpedicular to the disturbance? Answer-D Tranverse

</span>
3 0
3 years ago
Which model of light states that light is composed of millions of particles?
Kobotan [32]

The answer is option A "particle model." A particle model is the model that shows the movement and speed in substances. For example, in a solid the particles wouldn't have any movement, a liquid the particles are moving around slow, and a gas the particles are moving around quick.

Hope this helps.

3 0
3 years ago
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