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3 years ago

how does either an increase in temperature or a decrease in temperature affect the density of a liquid or gas

Physics

2 answers:

katrin [286]3 years ago

7 0

Cooling substance causes molecules to slow down and get slightly closer together

natta225 [31]3 years ago

3 0

When the temperature is higher, molecules will speed up and bump into each other causing them to spread farther apart. Therefore, the density is less. This is the opposite when the temperature is cooler.

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When four quadruplets cry simultaneously, how many decibels greater is the sound intensity level than when a single one cries?

Ket [755]

Answer:

Explanation:

Assume that a single baby cries at X db

4 babies crying would be X + 10log₁₀(4) = X + 6 db

8 0

3 years ago

1. Plot the following graphs:

VLD [36.1K]

Answer:

(a) The distance-time graph for an object with uniform speed is giving by a straight line sloped graph with a constant positive or negative gradient as shown in the attached diagram

(b) The distance-time graph for an object with non-uniform speed is giving by a curved line sloped graph with varying gradient as shown in the attached diagram

(c) The velocity-time graph for a car with uniform motion is giving by a horizontal line graph at the speed of constant motion with a zero gradient as shown in the attached diagram

(d) The velocity-time graph for a car moving with uniform acceleration is giving by a straight line sloped graph with a constant positive or negative gradient as shown in the attached diagram

(e) The velocity-time graph for a car moving with non-uniform acceleration is giving by a curved line sloped graph with varying gradient as shown in the attached diagram

(f) According to Newton's first law of motion, an object at rest will remain at rest with no motion unless acted by a force, an therefore, will have no motion with time

Explanation:

8 0

4 years ago

The data table depicts an object moving with changing speed.<br><br> True<br> False

Nimfa-mama [501]

The answer is true. The table does show an object moving with changing speed.

6 0

3 years ago

Read 2 more answers

Newton's first law of motion gives the concept of force moment

Furkat [3]

Answer:

Hey there

Where trying to say that:

Newton's first law gives the concept of force and momentum?

That's false if that's is what you said.

Newton's first law tells us that objects in motion will remain in motion and objects at rest will remain at rest.

Newton's second law gives us the concept of force and momentum.

6 0

3 years ago

PLEASE EXPLAIN.

kvasek [131]

Explain a police role, and how important it is. also you can explain a mayor's role and how important it is...

A police's role in the community is to protect us and make sure that everyone is following the rules. it is important for a police to be there so we can be safe. Their status is fair enough. Another Example is a mayor. a mayor's job is to improve the city/ the community. His status is high. There are many people around us that help us, each with a different status.

**Tell me if you need more

8 0

3 years ago