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klio [65]
2 years ago
8

4

Physics
1 answer:
Zigmanuir [339]2 years ago
4 0

(a) The object moves with uniform velocity from A to B.

(b) The object moves with constant velocity from B to C.

(c) The object moves with increasing velocity from C to D.

<h3>Velocity of the object from point A to B</h3>

V(A to B) = (6 - 0)/(4 - 0) = 1.5 m/s

<h3>Velocity of the object from point B to C</h3>

V(B to C) = (6 - 6)/(11 - 4) = 0 m/s

<h3>Velocity of the object from point C to D</h3>

V(C to D) = (7 - 6)/(12 - 11) = 1 m/s

final velocity = 1 + 1.5 m/s = 2.5 m/s

Thus, we can conclude the following;

The object moves with uniform velocity from A to B.

The object moves with constant velocity from B to C.

The object moves with increasing velocity from C to D.

Learn more about velocity here: brainly.com/question/6504879

#SPJ1

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Arrange the following substances in order of decreasing magnitude of lattice energy. Rank the compounds in order of decreasing m
Ivan

Answer:MgO>CaO>NaF>KCl

Explanation:

The lattice energy is one that depend on the attraction between oppositely charged ions in a compound/substance.

Following up with this the greatest forces of attraction will exist between ions that have the smallest radii.

And, because the attraction depends on the product of the charges, we prioritize ions with the greatest charge.

The smallest pair of ions will be able to get closest to each other relative to others. This implied that the smallest distance between centres will have the largest lattice energies relative to others.

7 0
3 years ago
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Alona [7]

Answer:

Mass, m = 20000 kg

Explanation:

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We need to find the mass of the Shark. The force acting on an object is given by :

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m is the shark's mass

So,

m=\dfrac{F}{a}\\\\m=\dfrac{2.5\times 10^4}{1.25}\\\\m=20000\ kg

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4 0
2 years ago
Look at the simple machine shown below and determine the mechanical
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Answer:

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3 0
2 years ago
A 0.614mole sample of ideal gas at 12degree occupies a volume of 4.32.what is the pressure of the gas
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Answer:

336.9520 atm

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Plugging in all the values in the Gas Equation:-

Pressure=\frac{0.614 × 8.314× 285.15}{4.32}   atm

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3 0
3 years ago
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