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aleksklad [387]
3 years ago
6

rt A For a given substance, do you expect the density of the substance in its liquid state to be closer to the density in the ga

seous state or in the solid state?
Physics
1 answer:
Nat2105 [25]3 years ago
8 0

Answer:

A substance in its liquid state is closer to the density of its solid phase than the density of its gaseous phase.

Explanation:

For a substance in its liquid state we can expect the density of the substance more closer to the density of its solid state than its gaseous state because the the inter-molecular space is much close near to incompressible in the liquid state and the the inter-molecular force of attraction is much higher as compared to gaseous state.

In contrast to the molecular properties in liquid state gases have almost negligible inter-molecular force of attraction and very huge inter-molecular spacing which makes it well compressible.

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A woman of mass 50 kg is swimming with a velocity of 1.6 m/s. If she stops stroking and glides to a stop in the water, what is t
Snezhnost [94]

Answer:

Impulse of force = -80 Ns

Explanation:

<u>Given the following data;</u>

Mass = 50kg

Initial velocity = 1.6m/s

Since she glides to a stop, her final velocity equals to zero (0).

Now, we would find the change in velocity.

Change \; in \; velocity = final \; velocity - initial \; velocity

Substituting into the equation above;

Change in velocity = 0 - 1.6 = 1.6m/s

Impulse \; of \; force = mass * change \; in \; velocity

Substituting into the equation, we have;

Impulse \; of \; force = 50 * -1.6

<em>Impulse of force = -80 Ns</em>

<em>Therefore, the impulse of the force that stops her is -80 Newton-seconds and it has a negative value because it is working in an opposite direction, thus, bringing her to a stop. </em>

5 0
2 years ago
You have a 1.7 μf and a 2.2 μf capacitor. what values of capacitance could you get by connecting them in parallel?
Rus_ich [418]
You have to add 1.7 and 2.2 together!
1.7+2.2=3.9μF
5 0
3 years ago
Read 2 more answers
A box (m = 20 kg) is sliding on a horizontal surface. it is connected to a massless hook by a light string passing over a massle
Varvara68 [4.7K]

mass of the box = 20 kg

force of friction on the box due to surface

F_s = \mu_s N

F_s = 0.80 * 20 * 9.8

F_s = 156.8 N

similarly kinetic friction on it

F_k = \mu_k N

F_k = 0.30* 20 * 9.8

F_k = 58.8 N

now the weight of the suspended block will be

W = mg = 15*9.8 = 147 N

so here the weight of the suspended block is less than the limiting friction on it

So here we will say that friction will counter balance the weight of the suspended block and it will not move at all

So acceleration of the box will be zero

5 0
3 years ago
The part of the Earth that is Molten is....?
Sophie [7]

Answer: information in picture below hope u understand.

Explanation:

3 0
3 years ago
Alllura is running to the blue lion so she can join the others in forming voltron. if allura starts off
morpeh [17]

The acceleration will be 1.9166 m/s². According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.

<h3>What is acceleration?</h3>

The rate of change of velocity with respect to time is known as acceleration.

Given data:

u(Initial velocity)=2.50m/s

v(Final velocity)=8.25m/s

t(time period)= 3.00s

The acceleration of the Allura will be :

\rm a = \frac{v-u}{t} \\\\ a= \frac{8.25-2.50 }{3.00 }\\\\ a= 1.9166 \ m/s^2

Hence, the acceleration will be 1.9166 m/s².

To learn more about acceleration, refer to the link;

brainly.com/question/2437624

#SPJ1

5 0
2 years ago
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