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marshall27 [118]
3 years ago
9

It is very important that experiments are documented and conducted with a procedure that can be?

Physics
2 answers:
yulyashka [42]3 years ago
7 0

Answer:

Reproducible

Explanation:

In science, the result of any experiment is proved several times by different scientists to know how reliable it is, avoiding in this way, a human mistake during the experiment or any kind of error.

   

Before a scientific paper can be published it will pass for a group of experts in the field of the research, and they are going to reproduce all the steps described in the paper in order to see if they can get the same conclusion of the author.                                                    

Ksenya-84 [330]3 years ago
5 0

Answer:

Repeated

Explanation:

An experiment must be done multiple times to prove its validity.

hope this helps- Cam ♡

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A 10 kg bear is running to the right at 10 m/s. He crashes into another 10 kg bear running to the left at -5 m/s. They collide a
faust18 [17]

Answer:

<em>Total momentum is conserved</em>

Explanation:

<u>Conservation of Momentum </u>

The momentum is a physical magnitude that measures the product of the object's velocity by its mass. The total momentum of a system is the sum of all its components' individual momentums. The two-bear system starts with a total moment of  

p=m_1v_1+m_2v_2=(10)(10)+(10)(-50)=50\ kg.m/s

When both bears stick together, the total mass is 20 kg, and the new momentum is

p'=(20)(2.5)=50 \ kg.m/s

We have assumed both bears move to the right after the collision. In this situation, the total momentum is conserved

7 0
3 years ago
xIn the reaction A B + C + heat, ______. there is a net input of energy the potential energy of the products is greater than tha
kow [346]

Answer: Option (d) is the correct answer.

Explanation:

A chemical reaction in which heat energy is liberated is known as an exothermic reaction.

For example, A \rightarrow B + C + Heat

In an exothermic reaction, energy of reactants is more than the energy of products.

This means that potential energy of products is less than the potential energy of reactants.

Thus, we can conclude that in the reaction A \rightarrow B + C + heat, the potential energy of the products is less than that of the reactant.

6 0
3 years ago
Cody's family went hiking along a stream in Georgia and found a waterfall. At the bottom of the waterfall, they noticed many sma
Vitek1552 [10]

Answer:

They can expect the size of the rocks to get smaller as the time passes.

Explanation:

They can expect the size of the rocks to get smaller as the time passes.

  • This is so because the water falling from certain height under waterfall will exert mechanical impact on the rock due to the mass of the water. This will act as water hammer <em>causing wear and tear</em> to the rock particles and flowing them away with the stream of water.
  • This hydraulic shock is generated when there is sudden stoppage in the motion of water. In sync with Newton's second law of motion, when the momentum of water is changed within a short course of time it creates a hammer like impact which has potential  of wear and tear when an object is continuously subjected to it.
4 0
3 years ago
Which of the following is a measure of the total energy of a system?
11111nata11111 [884]
The answer is enthalphy

Enthalphy especially used in thermodynamic system. It itncludes the internal energy which required to create the system and the ammount of energy required to establish its volume and pressure

Real life products of enthalphy applcation are refrigerator and compressor

Hope this help you out
6 0
3 years ago
Plz HELP! All of the following are possible reasons to complete strength training (anaerobic) exercises, except:
Illusion [34]

Answer:i would say "to treat or prevent injuries"

Explanation: anaerobic exercise is: "high intensity movements preformed in a short period of time."

to treat or prevent injuries you would want to do Aerobic exercise, which is an easy exercise like walking.

4 0
3 years ago
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