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Salsk061 [2.6K]
4 years ago
10

As matter changes state from solid to liquid, what statement can we make about the attractive force between its molecules?

Physics
2 answers:
morpeh [17]4 years ago
8 0

Answer: The correct option is A.

Explanation:

In solid state, the atoms are tightly packed due to the strong force of attraction between its molecules.

In liquid state, the atoms are not tightly packed due to the less force of attraction between its molecules as compared in solid state.

In the given problem, matter changes state from solid to liquid then the force of attraction between its molecules decreases.

Therefore, the correct option is A.

alexira [117]4 years ago
4 0
It decreases .
I did this problem just now on USA test prep

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ESSAY: PROPHECY
kogti [31]

The two Old Testament chapters filled with prophecies concerning Jesus Christ are:

Isaiah 9:6: Here, Isaiah was said to have prophesies that Jesus Christ will be born and he will come as a baby; Jesus was known to be called by several names here such as the Prince of peace.

Micah 5:2L Here, Micah was said to have prophesies that Jesus will be born in a town that is called  Bethlehem.

<h3>What is the message of Isaiah 9?</h3>

The kind of message is one that can be seen mostly in Isaiah 9:1-7. Isaiah  was known to be a prophet who was said to have announced that there is what we see presently gloom and distress and there a time will arise or come to pass when there will be happiness, joy and salvation.

The reason for the above is because a child will be born who will be the savior of the whole world and through him, the Rod of the Oppressor will be destroyed.

Learn more about prophecies from

brainly.com/question/14032462

#SPJ1

5 0
2 years ago
If a wave y(x, t) (6.0 mm) sin(kx (600 rad/s)t f) travels along a string, how much time does any given point on the string take
kipiarov [429]

Answer:

t₁ - t₂ = 0.0011 s

Explanation:

given,

y(x, t) = (6.0 mm) sin( kx + (600 rad/s)t + Φ)

now,

y m = 6 mm        ω = 600 rad/s

y₁ = + 2.0 mm    y₂ = -2 .0 mm

now,

2 = (6.0 mm) sin( kx + (600 rad/s)t + Φ)

-2 = (6.0 mm) sin( kx + (600 rad/s)t + Φ)

so,

kx + (600 rad/s)t₁ + Φ = \dfrac{\pi}{180}sin^{-1}(\dfrac{1}{3})......(1)

we have multiplied with π/180 to convert angle into radians

kx + (600 rad/s)t₂ + Φ = \dfrac{\pi}{180}sin^{-1}(-\dfrac{1}{3})......(2)

subtracting both the equation (1)-(2)

600(t₁-t₂) =  \dfrac{2\pi}{180}sin^{-1}(\dfrac{1}{3})

now,

    t₁ - t₂ = 0.0011 s

time does any given point on the string take to move between displacements is equal to 0.0011 s

3 0
4 years ago
Which of the following statements best explains why genetic variation is important to the survival of a population?
Oxana [17]
D. Genetic variation increases the likelihood of an allele being present that is best suited for the environment.
6 0
4 years ago
Read 2 more answers
A car with a mass of 800 g and velocity of 15 m/s collided with a truck of a velocity of 20 m/s, if the momentum is conserved wh
nydimaria [60]

Question: A car with a mass of 800 g and velocity of 15 m/s collided with a truck moving in opposite direction with a velocity of 20 m/s, if the momentum is conserved and they both move with a common velocity of 10 m/s, what is the mass of the truck?

Answer:

0.133 kg

Explanation:

Applying the law of conservation of momentum,

Total momentum before collision = Total momentum after collision

mu+m'u' = V(m+m')................... Equation 1

Where m = mass of the car, m' = mass of the truck, u = initial velocity of the car, u' = initial velocity of the truck, V = common velocity.

From the question,

Given: m = 800 g = 0.8 kg, u = 15 m/s, u' = -20 m/s, V = 10 m/s

Substitute these values into equation 2

(0.8*15)+(m'*20) = 10(0.8+m')

Solve for m'

12-20m' = 8+10m'

-20m'-10m' = 8-12

-30m' = -4

m' = -4/-30

m' = 0.133 kg

4 0
3 years ago
A 5.0-Ω resistor and a 9.0-Ω resistor are connected in parallel. A 4.0-Ω resistor is then connected in series with this parallel
lbvjy [14]
The 4ohm resistor is not parallel to any devices, so the current through it is the same as the total current through the circuit.

Apply I = V/R
I = total current, V = battery voltage, R = total resistance

Calculate the total resistance R of the circuit first.

R will be the sum of the 4ohm resistor and the resistance of the 5&9ohm parallel resistors. To find the resistance of the pair, you apply the “sum of inverses” rule:

R = 1/(1/5 + 1/9) = 3.21ohm

Now add the 4ohm resistor:
R = 3.21 + 4 = 7.21ohm

Now let’s calculate I = V/R:
Given values:
V = 6.0V
R = 7.21ohm
Plug in and solve for I:
I = 6.0/7.21

I = 0.83A
8 0
4 years ago
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