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Sergeeva-Olga [200]
3 years ago
10

What is the difference b/w distance and displacement?

Physics
1 answer:
Vlada [557]3 years ago
4 0
Distance is the actual path covered and displacement is the shortest distance from the object to the point of origin.

Please mark as brainliest if satisfied with answer
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Two identical carts are free to move along a straight frictionless track. At time t1, cart X is moving at 2.0 m/s when it collid
jarptica [38.1K]

Answer:

Explanation:

Using the law of conservation of momentum;

m_1 u_1+m_2u_2 = m_1v_1+m_2v_2

here;

There is a need for conservation of the total momentum that occurred before and after the collision.

So;

m_1 = mass of cart X

m_2 = mas 9f cart Y

u_1 = velocity of cart X (before collision)

u_2 = velocity of cart Y (before collision)

v_1 = velocity of cart X (after collision)

v_2 = velocity of cart Y (after collision)

So;

m(u_1+0) =(m_1v+m_2)v

because the mass is identical and v represents the velocity of both carts.

Now;

u_1 = 2 m/s

u_2 = 0 ( at rest)

∴

m(2) = (2m)v

v = 1 m/s

Thus, we can see from the graphical image attached below that the velocity of X reduces to 1 m/s after collision with cart Y.

8 0
3 years ago
Question 25
aniked [119]

Answer:

o The result of a chemical change is a different  composition; in a physical change, the composition  remains the same.

Explanation:

In a chemical change, new kinds of matter are produced although the atoms are the same.

For physical changes, no new kinds of matter formed. Only the state of substances changes.

  • Most chemical changes are usually irreversible
  • Physical changes are reversible in most parts.
  • Changes in state and form are salient characteristics of physical changes.
  • When new products are formed from the reactants, it is an indicator of a chemical change.
7 0
2 years ago
Batman chased the joker on his batbike for 20 minutes, traveling at the speed of 30 kilometers per minute. How far did Batman go
AURORKA [14]

Answer:

123 kilometer

Explanation:

none

8 0
2 years ago
what is the main difference between a substance going through a physical change and one going through a chemical ?
Ainat [17]

Answer: Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Explanation:

3 0
2 years ago
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On a playground slide, a child has potential energy that decreases by 1000 J while her kinetic energy increases by 900 J. what o
mel-nik [20]

Answer:

Friction     100 j

Explanation:

Friction causes the inequality between PE and KE

100 J

8 0
1 year ago
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