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nydimaria [60]
3 years ago
9

How do i pass my math class with a b average​

Biology
2 answers:
Talja [164]3 years ago
7 0
Look for extra credit opportunities! Ask to redo assignments for a higher grade!
vladimir2022 [97]3 years ago
5 0
Make sure you get good grades on your homework, ask for help, get apps that can help
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Gas makes things buoyant, why ? And what are ways that this could be useful?
ryzh [129]

Answer:

Gas makes things buoyant by making the volume of an object lighter than the surrounding fluid it is trying to displace.

Gas Buoyancy is useful in the following ways;

• Airships

• Steel ships and

• All floating and flying vessels

Explanation:

Buoyancy is the tendency of an object to float in a fluid such as air or water. It is a phenomenon that was theorized by the mathematician, Archimedes known as the Archimedes Principle.

It states that the upward buoyant force that is exerted on a body immersed in a fluid is equal to the weight of the fluid that the body displaces.

The principle explains the reason why objects float and fly.

So, when an object is immersed in a fluid, it can float due to the upward force exerted by the fluid on the object. But for this to happen, the object has to weigh less than the fluid it is displacing.

This is where the use of a gas comes into play.

Because the object may be heavier than the surrounding fluid it is trying to displace, it is filled with a large amount of gas (usually hydrogen and/or helium) which is lighter. This makes the volume of the gas and the object put together lighter than that of the surrounding air.

This is what causes objects to float or fly

7 0
2 years ago
5. The permease (transporter) allows glucose and Na into the cell requires ATP. True or False?
dem82 [27]

Answer: 5. False 6. False

Explanation: The permeases are membrane transport proteins, they're secondary active transporter that allow the movement of a specific molecule in or out of the cell in the direction of a concentration gradient, it is a form of facilitated diffusion and does not require energy. The permease secondary transporter uses the Na ion concentration to move glucose into the cell.

When the ion concentration gradient is set, the concentration of glucose in the cell is higher than the concentration of blood. Glucose will move to the blood by passive diffusion through permease secondary transporter.

The transport mechanism is carrier mediated it does not require energy.

7 0
3 years ago
Sponges are full of holes, jellyfish are big open sacs, and flatworms are flat. How are these features important in facilitating
Katena32 [7]
Answer: 23566 + 789 = l i l
6 0
3 years ago
You want to decorate the bottom of an aquarium with brightly colored rocks of different shapes and sizes. this describes a _____
Cloud [144]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Below are the choices:

homogenous mixture 
<span>heterogeneous mixture </span>
<span>semi mixture
</span>
You want to decorate the bottom of an aquarium with brightly colored rocks of different shapes and sizes. this describes a homogenous mixture<span> 
</span>
<span>The word hetero means different. Since the rocks are varied i assume it would be a heterogeneous mixture.</span>
7 0
3 years ago
Which of the following body part has involuntary muscles arm face intestine leg
Murrr4er [49]
Intestine, the intestine digests food involuntary.
5 0
3 years ago
Read 2 more answers
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