how is th ekinetic energy of the particles




will mark brainliest

The force applied to the submerged rubber duck is 4.9 N.

The density of the rubber duck is calculated as follows;

ρ = S.G x density of water

ρ = 0.2 x 1000 kg/m³

ρ = 200 kg/m³

F = mg = (ρV)g

F = (200 x 0.0025) x 9.8

F = 4.9 N

Learn more about density and force here: https://brainly.com/question/952755

The way a microwave uses wave behavior to transmit information is for point-point communication for small-sized antennas.

The form of electromagnetic radiation it uses is electrical and mechanical energy.

This refers to the form of electromagnetic radiation that has a range of 1m-1mm.

The way a radio uses wave behavior to transmit information is for wireless transmission of sound, typically for maritime and aircraft travel.

The form of electromagnetic radiation it uses is a radio wave.r

The range of the radio is 100–10 km at 3–30 kHz

Read more about electromagnetic radiation here:

https://brainly.com/question/25847009

#SPJ1

Answer:

.

Explanation:

Answer:

53466kg.

Explanatiokn:

Thanks for points...

But can you type this question.. As it becomes hard to answer if it's in the picture..

Answer:

The correct answer is C - 7.8 < 7 5/6 < 7.9

Step-by-step explanation:

First, convert 7 5/6 to decimal form --> 7.83.

If you don't know how to convert, think about what 5/6 is equal to and put it in decimal form. Add your decimal to the whole number, and there is your answer.

7.83 is in between 7.8 and 7.9, so it must be the answer.

I hope this helps!

Answer:

I think it's the son

Explanation:

bcs he might love it

Explanation:

23 km/hr x 1.5 hrs = 34.5 km

34.5 km = 34500 meters

Answer:

Because alkali metals are so reactive, they are found in nature only in combination with other elements. They often combine with group 17 elements, which are very “eager” to gain an electron.

Explanation:

hope this helps you if it does please mark brainliest

Answer:

0.0001 kg

Explanation:

The weight in Kilograms is equal to the milligrams divided by 1,000,000.

100 ÷ 1,000,000

Answer:

A

Explanation:

The abundance of oxygen in our atmosphere and the presence of liquid water on the surface of our planet makes our "Pale Blue Dot" stand out in contrast to the other planets in the solar system — a unique and fragile home for life.

Answer:

The marble will take 8.813 seconds to hit the ground.

Explanation:

The marble will fall according to this motion equation: y(final) = y(initial) + v(initial)×t + 1/2×a×t×t

y(final)=0 m, the marble's final position in relation to the ground

y(initial)=381 m, the marble's initial position in relation to the ground

v(initial)=0 m/s (meters per second), the marble's initial velocity (speed with direction) when fall first begins

t=? seconds, this is the amount of time that passes while falling, the variable in this problem

a=-9.81 m/s/s, the rate at which the velocity of the marble changes, acceleration. On Earth, neglecting friction, acceleration is a constant at negative 9.81 meters per second squared

Plug the values into the equation: 0= 381 + 0t + 1/2(-9.81)(t)(t)

Subtract 381 from both sides and disregard 0t because it has no value and no longer matters: -381= 1/2(-9.81)(t)(t)

Multiply out the equation: -381= -4.905(t)(t)

Divide both sides by -4.905 to isolate the variable: 77.676=(t)(t)

Find the square root of both sides: t=8.813 seconds

Answer:

a. 5000 N

Explanation:

If gravity is 10 m/s² and the wing is motionless.

F = ma = 500(10) = 5000 N

Answer:

Explanation:

please mark brainiest

The human brain has the capacity to generate new neurons throughout the lifespan (option b).

The correct statement regarding the development and growth of new neurons in the human brain is option A. The human brain has the capacity to generate new neurons throughout the lifespan.

1. Neurogenesis, the process of generating new neurons, was once believed to be limited to early brain development and not to occur in adulthood. However, recent research has challenged this notion.

2. Studies conducted on adult brains have provided evidence of neurogenesis occurring in specific regions of the brain, such as the hippocampus, which is involved in learning and memory.

3. Neurogenesis in the adult brain involves the generation of new neurons from neural stem cells. These stem cells have the ability to differentiate into mature neurons and integrate into existing neural circuits.

4. The process of neurogenesis is influenced by various factors, including environmental enrichment, physical exercise, and certain medications.

5. It is important to note that while neurogenesis occurs in the adult human brain, the rate of neurogenesis is relatively low compared to early brain development.

6. In contrast to option B, there is evidence to support the idea that neurogenesis continues to occur in the human brain after birth and throughout life.

7. Option C is incorrect because while glial cells, a type of support cell in the brain, can reproduce and grow in number throughout adulthood, neurons also have the capacity to generate new neurons.

8. Option D is incorrect as several animal species, including primates, birds, and rodents, have been found to experience neurogenesis in various stages of their lives.

In conclusion, option A is the true statement regarding the development and growth of new neurons in the human brain, as neurogenesis can occur throughout the lifespan.

For more such questions on neurons, click on:

https://brainly.com/question/13396551

#SPJ8

Explanation:

power output=(1800×10×0.06)/9=120watts

The x-component of the third force acting on the particle is 41.2 lb.

The given parameters;

The vector components of the forces is calculated as;

[tex]F_1 = 57, (2,-4, 5) = 57\times \frac{2i -4j+ 5k}{\sqrt{2^2 + 4^2 + 5^2} } = 8.5(2i -4j+ 5k)\\\\F_1 = (17 i -34j + 42.5k)lb\\\\\\ F_2 = 32, (-1, -2, -8) = 32\times \frac{-i -2j-8k}{\sqrt{1^2 + 2^2 + 8^2} } = 8.3(-i-2j-8k)\\\\ F_2 = (-8.3i - 16.6j - 66.4k)lb\\\\\\ F_{net}= 41, (-5, -1, 4) = 41\times \frac{-5i -j+ 4k}{\sqrt{5^2 + 1^2 + 4^2} } = 6.5(-5i-j+ 4k)\\\\ F_{net} = (-32.5i -6.5j+ 24k)lb[/tex]

The x-component of the third force is calculated from the resultant of the forces;

[tex]F_1+F_2 + F_3 = F_{net}\\\\F_3 = F_{net} - (F_1 + F_2)\\\\F_3 = (-32.5i -6.5j + 24k) - (17i -34j + 42.5k) - (-8.3i -16.6j -66.4k)\\\\F_3 = (-32.5 -17 + 8.3)i +(-6.5 + 34+ 16.6)j + (24 -42.5+66.4)k\\\\F_3=(-41.2 i) +(44.1)j + (47.9)k\\\\F_3 = (-41.2i + 44.1 j + 47.9k)lb[/tex]

Thus, the x-component of the third force acting on the particle is 41.2 lb.

Learn more here:https://brainly.com/question/11558676

Answer:

600 N upward

Explanation:

According to Newton's third law, for every action their is an equal and opposite reaction. The equal and opposite reaction to a downward force of magnitude 600 N is an upward force of magnitude 600 N

Answer:

negatively charged

Explanation:

Answer: electrons are negative charged

Explanation:

Answer:

O Adenine and guanine

Explanation:

i think tell me if im rong

Guanine and cytosine are complementary base pairs for DNA, hence option B is correct.

Adenine and thymine are joined by two hydrogen bonds, whereas guanine and cytosine are joined by three hydrogen bonds.

Base pair of DNA. The nitrogen-containing bases adenine (A), thymine (T), and cytosine (C), as well as guanine (G), the couple together under normal conditions. The structure of DNA is created by the binding of these base pairs.

In order to construct the helical structure of DNA, complementary base pairing is crucial because it enables the base pairs to be placed in the most energetically advantageous manner.

Therefore, due to the fact that it permits semiconservative replication, it is also crucial in replication.

Learn more about DNA, here:

https://brainly.com/question/22761986

#SPJ2

thanks for the points

Explanation:

Answer:

Explanation:

T = (2π rad / rev) / (25 rad/s) = 0.251327... = 0.25 s

The propeller was turning at 25 rad/s then the period of the propeller will be equal to 0.25 seconds.

In terms of physics, velocity is a vector assessment of the motion's direction and speed. The rate of change in an object's position relative to a reference frame and time is the more precise definition of velocity. Simply put, the concept of velocity informs us of the rate at which an object is travelling in a given direction.

It indicates the rate of motion of objects. Take two moving things like our illustration. If both items are travelling in the same vague direction, it is simple to determine which is moving more quickly.

From the given data in the question,

T = 2π (rad/rev) / 25 (rad/s)

T = 0.25 seconds.

Therefore, the period of this propeller is 0.25 seconds.

To know more about Velocity:

https://brainly.com/question/18084516

#SPJ2

Answer:

26.6666666667Explanation:

80 divided by 3

The average speed was 26.67 Miles per hour (mph)

speed= distance ÷ time

speed= 80 miles ÷ 3 hours

speed= 26.67mph

Hope this helped you- have a good day bro cya)

The free body diagram of the squirrel motion, the weight of the squirrel is acting downwards while the air resistance is acting upwards.

The given parameters;

At a constant velocity downwards, the vertical acceleration is zero.

The downward force on the squirrel is calculated as follows;

W = mg - ma

W = m(g - a)

W = m(g - 0)

W = mg

W = 5 x 9.8

W = 49 N

The air resistance on the squirrel which is acting upwards is calculated as;

n = ma + mg

n = m(a + g)

n = m(0 + g)

n = mg

n = 5 x 9.8

n = 49 N

The free body diagram is presented below;

                                   ↑ n

                                   Ο

                                   ↓ W

Thus, in the free body diagram of the squirrel motion, the weight of the squirrel is acting downwards while the air resistance is acting upwards.

Learn more here:https://brainly.com/question/2421394

Researchers believe that sleep helps strengthen and enhance long-term memory function. Hence, option B is correct.

Meditation could be thought of as a series of practices that encourage enhanced awareness and focused attention. Meditation is a different way to change awareness that has been shown to have several benefits for psychological well-being.

To feel refreshed and alert when you get up, sleep is a crucial process that allows your body and mind to heal. The body needs adequate sleep to remain healthy and free of disease. Without enough sleep, the brain cannot work efficiently. This may affect your ability to concentrate, think clearly, and process memories.

That's the reason researchers believe that sleep help in enhancing longer memory function.

To get more information about Meditation :

https://brainly.com/question/5704604

#SPJ2

Answer: B Dark matter

We have that for the Question "Which component that makes up the bulk of all galaxies?  A. gas   B. dark matter   C. dust   D. stars​" it can be said that Invariably the dark matter makes up the bulk of all galaxies

Option B

From the question we are told

Which component that makes up the bulk of all galaxies?  

A. gas  

B. dark matter  

C. dust  

D. stars​

Generally

the Galaxy have a mass of about 2*10^{12} mass of sun

This is made up of 95% of dark matter

Therefore

Invariably the dark matter makes up the bulk of all galaxies

Option B

For more information on this visit

https://brainly.com/question/17208989

Answer:

~218 electrons

Explanation:

(-3.5 * 10^-17 C)/(-1.602 * 10^-19 C) = 3.5/1.602x10^-2 = 218.47...

The best combination of layers that would work best for this purpose is an inner core of steel, no air gap, and an outer layer of glass. Option A is correct.

Thermal mugs have the ability to maintain the internal body temperature and heat of their container. For the heat to be maintained for an extended period of time. The internal core must be lined with steel because it radiates less heat compared to the glass. The steel also has high conductivity and lesser specific heat to keep drinks hot for a long period of time.

Therefore, we can conclude that for thermal mugs to keep drinks hot for as long as possible, the inner core must be lined with steel, no air gap, and contain an outer layer of glass.

Learn more about thermal conductivity here:

https://brainly.com/question/7643131?referrer=searchResults

Answer:

A

Explanation:

Answer:

C. 640

Explanation:

The minimum force would occur in a frictionless environment and act parallel to any abutting surface.

F = ma = 160(4) = 640 N