After 3 half lives how much of a radioactive substance will remain

Answers

Answer 1
Answer:

354/4561 and that is I think the answer


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The three basic skills needed for effective communication are

What are the basic components of an effective golf swing?O Grip, Setup, Stance, Backswing/Downswing

O Attitude, Effort, Compassion

O Strength, Power, Finesse

O Athletic Ability, Talent, Sportsmanship

Answers

The basic components of an effective golf swing include A. Grip, Setup, Stance, Backswing/Downswing.

It should be noted that a good golf wing should have main parts which are the grip, setup, stance, and backswing or downswing.

The golf player should swing effectively and maintain the proper spine angle in the positions. When hitting a golf ball, it's important to look at the back inside quarter of the ball. This is vital to enhance an inside swing.

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Final answer:

An effective golf swing is composed of five basic components: grip, setup, stance, backswing, and downswing. Each step aids in achieving a versatile, controlled, and powerful swing which contributes to a player's overall performance.

Explanation:

The basic components of an effective golf swing include the grip, setup, stance, and the actions of backswing and downswing. The grip refers to how you hold the club, where a neutral grip allows the best versatility. The setup includes positioning in relation to the ball, posture, and alignment to the target. The stance concerns the placement of your feet, the ideal width being about shoulder-width apart. Commencing the swing, the backswing is the initial upward movement of the club. It should be a smooth, controlled motion, preparing for the energetic downswing. The downswing is the movement that launches the ball, starting from the ground up with your feet and legs initiating the motion.

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You want to make 50 ml of 1X tricaine solution in order to euthanize some fish. How much of a 20X tricaine stock solution will you need to dilute in order to make your solution?a. 1 ml b. 5 ml c. 0.4 ml d. 10 ml e. 2.5 ml

Answers

Answer: e. 2.5 ml

Explanation:

According to the dilution law,

C_1V_1=C_2V_2

where,

C_1 = concentration of stock solution = 20X

V_1 = volume of stock solution = ?

C_2 = concentration of required solution= 1X

V_2 = volume of  required solution= 50 ml

20* V_1=1* 50ml

V_2=2.5ml

Thus 2.5 ml much of a 20X tricaine stock solution is needed to dilute in order to make your solution.

One of the major useful functions or roles of bacteria in the ecosystem includes: Group of answer choices production of sugar production of hydrogen peroxide metabolization of sugar decomposition of organic matter

Answers

Answer:

The major role of bacteria in the ecosystem is the decomposition of organic matters.

Explanation:

The breakdown of these organisms and the release of the nutrients back to the environment is what called decomposition. These bacteria found in our ecosystem convert gaseous substances like nitrogen into nitrates or nitrites as a part of their metabolism and the product resulting from this process will be released to the environment.

Answer: Decomposition of organic matter

Explanation:

Decomposition is a biological process that involve the breakdown of complex organic matter into smaller molecules to release minerals forms of nutrients and carbon dioxide. Bacteria help in decomposition by feeding on them and release nutrients. There are two forms of decomposition, the aerobic I.e it occur in the presence of oxygen by the activities of aerobic bacteria or anaerobic decomposition which occur in the absence of oxygen by the activities of anaerobic bacteria.

Which statement describes how an Alaskan spruce forest reacts in fire A.resistant B.resillent C.tolerant D.pioneer

Answers

The correct answer is option B, that is, resilient.  

The Alaskan woodland more usually than not encounters with the incidents of fire regularly with the prime goal to better the cycling of supplements of the environment. One of the plants found in the Alaskan woodlands is Alaskan spruce and it is an exceptionally versatile plant. This signifies that when it gets destructed due to fire occurrences, it grows back briskly.  


the answer is; it is resilient. hope this helps

Why is only 10% of the energy consumed by an organism available to be transferred to another trophic level?

Answers

Final answer:

Only 10% of the energy consumed by an organism is available to be transferred to another trophic level due to the laws of thermodynamics and the inefficiency of energy transfer.


Explanation:

Only 10% of the energy consumed by an organism is available to be transferred to another trophic level due to the laws of thermodynamics and the inefficiency of energy transfer. This is known as the 10% rule.

The 10% rule states that energy is lost as heat during the process of respiration and metabolic activities, and only a fraction of the remaining energy is converted into biomass that is available as food for the next trophic level.

For example, if a primary producer (such as a plant) has 1,000 units of energy, only 100 units are passed on to the primary consumer (herbivore), and only 10 units are transferred to the secondary consumer (carnivore) in the next trophic level.


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Which of these would most likely happen if there is a sudden increase in the number of sunspots?A. summers would become colder
B. Earth's tilt on its axis would decrease
C. Earth's climate would become warmer
D. length of days and nights would increase

Answers

Which of these would most likely happen if there is a sudden increase in the number of sunspots?

C. Earth's climate would become warmer

The correct answer is option C.

The sudden increase in sunspots will make the Earth more warmer because the more the sunspots, more energy is delivered to the atmosphere. This increases the global temperatures of the Earth.

Answer:

The correct answer is C.

Explanation:

Sunspots increase and decrease through an average cycle of eleven years.

There is a debate of how much this sunspot would affect the earth`s temperature, the earth`s climate is sensitive to very weak changes in the Sun`s energy. During maximum sunspot activity, there`s a very slight increase in the energy output of the sun. Ultraviolet radiation increases during high sunspot activity, and this can have a large effect on Earth`s atmosphere.

I hope it helps!