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Fudgin [204]
3 years ago
10

A box is sliding at constant velocity. The coefficient of friction between the box and the surface is 0.27. The push force on th

e box 25000N. what is the weight of the box
Biology
1 answer:
Georgia [21]3 years ago
3 0
Jidihejkfdkljdn hope it helps
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Marie's pulse, breathing rate, and mental alertness have suddenly increased. it is likely that marie is experiencing the:
NISA [10]
Marie is experiencing the: Sympathomimetic effects (fight-or-flight state).

The sympathetic nervous system is a component of the autonomic nervous system, managing the activity of visceral organs and the automatic functions of the body, such as breathing or beating of the heart. The sympathetic nervous system is involved in many unconscious physiological activities through two neuromodulators of the catecholamine family: adrenaline, but especially norepinephrine (fight-or-flight hormones).
* It accelerates the metabolism and is activated for example in case of danger or fear, to prepare the individual to escape.
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* At the digestive level, it slows the muscular contractions of the intestines but promotes the release of glucose by the liver.
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5 0
2 years ago
Please Help! What molecules need to travel through ATP synthase to help it create ATP?
Effectus [21]

Answer:

The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.

Explanation:

That's the answer but not all of it just pick out the actual answer.

6 0
3 years ago
While observing a litter of puppies, Amy and Jose noticed that the puppies had a variety of black and white coat colors. They kn
White raven [17]

Explanation:

when dogs breed the mother and father each randomly contribute one allele from each locus giving each allele 50% chance of being passed down to the pups. one of the alleles at each locus is dominant and determines the traits like coat color

3 0
2 years ago
How is the small intestine adapted for the absorption of nutrients?
Gelneren [198K]
The small intestine has cilia to absorb nutrients and reabsorb water
6 0
2 years ago
HELP SOS PLEASE !!!!! (ONLY CORRECT ANSWERS PLEASE)
Phantasy [73]

Answer:

1- Option A) describes an index fossil. Trilobite existed for a short time, but was abundant and lived in many locations.

2- Option B) Continents were once joined and have since drifted apart.

Explanation:

1) Fossils are animal and vegetable rests found in different strata of sedimentary rocks. Sedimentary layers deposit chronologically, so they are used to reflect history. They keep in each layer some of the forms of life that inhabited that area in the past. These fossils turn to be very useful while dating ages. The term Index fossils refer to those fossils that only existed in a given era or geological period during evolution.  

Index fossils must:    

• Be easily recognizable and distinguishable from all the other fossils

• Have lived in a relatively short geological period

• Present a wide geographic distribution

• Have lived in different sedimentary basins

• Appear in different types of rocks

• Be abundant

<em>A) Trilobite existed for a short time, but was abundant and lived in many locations. </em>The species accomplish the requirements. It is easily recognizable, had a wide geographic distribution, was abundant, and lived for a short time.  

2) The tectonic plates theory states that there is a continual movement of the crust. It explains the movement of the different plates and their directions and interactions. The continental drift theory explains how these movements have been taking place since millions of years ago. When continents were together in a unique continent, many species used to inhabit it. When plates started to separate, they took some of these species that got apart by the ocean. Some species were already dead and fossilized, while some other organisms died during continental drift and got fossilized after the divergence. <em>The existence of the same fossils, placed in the same layers and of the same age, suggests that they used to inhabit the same area and died during the same time, meaning that continents were together when they got fossilized. </em>

5 0
3 years ago
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