This image shows the direction of the flow of water through a constricted pipe. Which of the following happens as you move from position A to position B in the water pipe? A.The velocity of the water decreases.
B.The pressure of the water decreases.
C.The flow rate of the water decreases.
D.The density of the water increases.

Answers

Answer 1

Answer:

The flow rate of the water decreases as the cross section is decreases. So, the correct option is C.

What is Bernoulli's equation?

Bernoulli’s principle states that the total mechanical energy of a moving fluid, which includes the gravitational potential energy of height, the energy associated with fluid pressure, and the kinetic energy of fluid motion, remains constant.

The formula for Bernoulli’s principle is given as follows:

$p+(1)/(2) pv^2+ pgh= constant$

From the equation of continuity for incompressible fluids which is Bernoulli's equation

a v = constant

where, a is the area and v is the velocity.

Pressure is inversely proportional to the velocity.

$a_Av_A= a_Bv_B$

From the image we can see that area of cross-section at A is greater than at B,

$a_A > a_B$

thus,

$v_A < v_B$

which means velocity of water will increase at B and water pressure will decrease.

Hence, the correct option is C, i.e. the flow rate of water decreases.

Learn more about Bernoulli's equation, here:

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Answer 2

Answer:

C. The flow rate of the water decreases

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A 1.0 µC test charge travels along an equipotential line a distance of 0.20 cm between two parallel charged plates with a field strength of 500.0 N/C. What is the change in voltage? (µC = 1.0 × 10^-6 C)

What happens in a neutralization reaction?

Answers

A neutralization reaction occurs when an acid and a base (usually both are in acqueous solutions) react to form water and a salt, which do not exhibit any of the acid or base properties. An acid is identified by being paired with a hydrogen ion and a base is identified by being paired with a hydroxide group.

Answer:

Read more on Brainly.com - brainly.com/question/1335446#readmore

Explanation:

Collect information about working of geyser and prepare a report

Answers

working of electrical geyser:
the phenomenon which occurs is only the transfer of electric energy into the heat energy...
the water enters through the input and then it is passed into a container having alloy coil which is also covered by conductor of heat but this conductor cannot pass electricity into water but only heat...
then water is heated over there and comes out through outlet..

A hybrid car can travel 40 miles per gallon. Approximately how many gallons of fuel will the car need to travel 20 km?A. 0.3
B. 0.8
C. 2.5
D. 3.2

Answers

Answer:

correct option is A

20 km we need 0.3 gallon fuel

Explanation:

given data

gallon = 40 miles

distance = 20 km

to find out

how many gallons of fuel

solution

we know that 20 km = 12.4274 miles

and

we know here car is travel 40 miles per gallon

it mean here that

40 miles = 1 gallon

1 miles = 1/ 40 gallon

and

12.4274 miles = 1/40 × 12.4274 gallon

solve it to get gallon of 20 km or

12.4274 miles = 0.31 gallon

so in 20 km we need 0.3 gallon fuel

correct option is A

Answer:

The number of gallons are 0.3.

A is correct option.

Explanation:

Given that,

A hybrid car can travel 40 miles per gallon

We need to calculate the mile/gallon to km/gallon

Gallon is the unit of liquid and miles and kilometer are the unit of distance.

$40\ miles/gallon = 64.3738\ km/gallon$

We need to calculate the number of gallons of fuel

Number of gallon $N=(20)/(64.3738)$

$N=0.3$

Hence, The number of gallons are 0.3.

Which describes a grizzly bear’s habitat? all the biotic factors in the ecosystem all the abiotic factors in the ecosystem the role of the bear in the ecosystem the physical area where the bear lives

Answers

The best description of a grizzly bear’s habitat is:

D. the physical area where the bear lives

A habitat is the natural surrounding or place where an organism lives, grows and competes with other organisms for resources. It is a physical area.

There are three major types of habitat which includes:

Freshwater habitat: This refers to the area of water where animals live. Examples of animals that live in a freshwater habitat includes: sea turtle, fishes, etc. Examples of freshwater habitat include:

Rivers
Lakes
Pond, etc

Marine water habitat: This is where a group of organisms live. Examples include:

Oceans
Seas, etc.

Coastal habitat: This is an intersection between the land and sea habitats.

A grizzly bear is a subspecies of brown bear and is resident in the northern plains of America and their habitat is a physical location where they live.

Therefore, the correct answer is option D

Answers

Answer : The correct option is, (D) 278 K

Explanation :

We are given temperature $5^oC$ .

Now the conversion factor used for the temperature is,

$K=^oC+273$

where, K is kelvin and $^oC$ is Celsius.

Now put the value of temperature, we get

$K=5^oC+273=278K$

Therefore, the temperature 278 K is equal to the $5^oC$

The perspective that focus's on human growth and flourishing. Based on Abraham Maslow's Hierarchy of Needs and self actualization.Group of answer choices

social/cultural

behavioral

biological

humanistic

Answers

The perspective that focuses on human growth and flourishing, based on Abraham Maslow's Hierarchy of Needs and self-actualization, is known as:

Humanistic

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