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kirza4 [7]
3 years ago
12

A shadow from a surgeon's hand obstructs your view while operating. Make suggestions for an alternative light source that avoids

this difficulty. Check all that apply. Check all that apply.
a. Use several point-like light sources at different positions around the point of interest.
b. Construct a smaller light source.
c. Use an additional point-like light source behind the surgeon.
d. Construct a larger light source.
Physics
1 answer:
Charra [1.4K]3 years ago
4 0

Answer:

B...................

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Ionic bonds are between a metal and a nonmetal.
Covalent bonds are between two nonmetals.
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3 years ago
Describe a situation in your everyday life where you could use the scientific method. List all the steps of the scientific metho
emmainna [20.7K]

Yes, scientific method can be applied on many everyday activities to get a reasonable solution. Infact normally we are applying this method without having it in our knowledge that we are applying it.

For example: In morning we are going to office and we start the car, but it is not started.You turn the engine again and again but it simply donot works.

Observation (the state of defining a problem):

The car is not started

Hypothesis (A possible solution based on the information we already know):

The car is not started because it might be out of gas or there can be some other technical fault.  

Experiment (testing of hypothesis by applying different methods of solving problem):

You get the fuel and put it inside the car but it still donot works and car didnot start. Experiment didnot get solution.

Analyze the results of data and test another hypothesis

You call a technician and he check with the car engine tries and finds out that the engine was out of order and needs repairing.

Draw conclusion:

The engine do not works when it is out of order and it is a cause of a car not being started.

<em>Now the theory and law making part can not be applied on this case but it is a part of scientific method.</em>

Hope it helps!

8 0
3 years ago
. Boa constrictor snakes have tiny pelvic girdles and leg bones within their bodies. Since these structures are not functional,
blondinia [14]

Those organic structures that do not seem to play any important biological function in the organism that possesses them are known as vestigial structures.

<h2>What is a vestigial structure?</h2>

A vestigial structure is one that has atrophied or lost its original function throughout the course of evolution.

  • It generally refers to those organic structures that were useful at some point, but are now practically or totally useless.

  • These structures are preserved as an inheritance of the evolutionary process, because at some point an ancestor of the current species had that structure, which was functional, but it ceased to be important and would end up atrophy.

Therefore, we can conclude that vestigial structures are structures that some organisms still conserve as an inheritance from their ancestors but that, for some reason or another, are no longer useful for the functioning of the same.

Learn more about vestigial structures here: brainly.com/question/2141655

4 0
2 years ago
the total linear momentum of a truck of mass 6000 kg that is moving at a speed of 40 m/s and a car of mass 1000 kg that is movin
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Answer:250,000

Explanation:

5 0
3 years ago
1.
Strike441 [17]

Answer:

Option(a) All of the above;

Explanation:

In relation to physics, force can be defined as any interaction between two bodies or objects that will change their motion. In simpler terms force refers to push/pull of a body with mass m that results in change of velocity or the acceleration a.

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