Which force changes Earth's surface most slowly?

. Is there net work done on an object at rest or moving at a constant velocity? WHICH ONE ???

Grace [21]

If an object is moving with a constant velocity, then by definition it has zero acceleration. So there is no net force acting on the object. The total work done on the object is thus 0 (that's not to say that there isn't work done by individual forces on the object, but the sum is 0 ).

8 0

3 years ago

What happens when you push a spring? How is this different than pulling it? (Hooke’s Law)

Yuki888 [10]

A spring is an object that can be deformed by a force and then return to its original shape after the force is removed.Springs come in a huge variety of different forms, but the simple metal coil spring is probably the most familiar. Springs are an essential part of almost all moderately complex mechanical devices; from ball-point pens to racing car engines.

7 0

3 years ago

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The theory of plate tectonics describes how the Earth’s lithosphere is broken into plates and these plates move over the molten

Mumz [18]

Answer:

C

Explanation:

A theory can be changed when new evidence is found. A law doesn't change because it is universally a fact. It doesn't need new evidence to support it.

5 0

3 years ago

How does a human insulin gene become part of a bacterium's plasmid?

Murrr4er [49]

1. Scientists are responsible for removing plasmids, small rings of DNA, from bacterial cells.

2. The Enzymes cut open the plasmid DNA. The same enzyme removes the human insulin gene from its chromosome.

3. The human insulin gene attaches the open ends of the plasmid to form a closed ring.

4. Some bacterial cells take up the plasmids that have the insulin gene.

5. When cells reproduce, the news cells will contain copies of the engineered plasmid. The foreign gene directs the cell to produce human insulin.

4 0

4 years ago

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What is an example of a invertebrate that doesn’t have an exoskeleton?

Tatiana [17]

Invertebrate means those organism which doesnot have backbone in their body .Some of the examples are:

1.Spider

2.earthworm

3.Starfish

4.Sea urchins.

hope this will help u a lot....

5 0

3 years ago

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