A device for measuring atmospheric pressure is a _____. thermometer manometer barometer seismometer

Find the work done in pumping gasoline that weighs 6600 newtons per cubic meter. A cylindrical gasoline tank 3 meters in diamete

Sonbull [250]

Answer:

work done in pumping the entire fuel is 466587 J

Explanation:

weight of the gasoline per volume = 6600 N/m^3

diameter of the tank = 3 m

length of the tank = 2 m

height of the tractor tank above the top of the tank = 5 m

work done in pumping fuel to this height = ?

First, we find the volume of the fuel

since the tank is cylindrical, we assume that the fuel within also takes the cylindrical shape.

Also, we assume that the fuel completely fills the tank.

volume of a cylinder = $\pi r^{2}l$

where r = radius = diameter ÷ 2 = 3/2 = 1.5 m

volume of the cylinder = 3.142 x $1.5^{2}$ x 2 = 14.139 m^3

we then find the total weight of the fuel in Newton

total weight = (weight per volume) x volume

total weight = 6600 x 14.139 = 93317.4 N

work done = (total weight of the fuel) x (height through which the fuel is pumped)

work done in pumping = 93317.4 x 5 = 466587 J

8 0

3 years ago

11. You sit at the outer rim of a Ferris wheel that rotates 2 revolutions per minute (RPM). What would your rotational speed be

aalyn [17]

If you are instead clinging to a position halfway from the center to the outer rim of the Ferris wheel, YOUR ROTATIONAL SPEED WILL STILL BE 2 REVOLUTION PER MINUTE.
This is because, every part of the wheel is moving with the same speed, so it does not matter where you sit on the wheel, the rotation per minute will still be the same. It is just like travelling inside a motor car, it does not matter whether you are sitting in the front passenger seat or at the back, the speed of the car remains the same.

4 0

3 years ago

The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the disp

dem82 [27]

Answer:

Speed, v = 312.34 m/s

Explanation:

The equation that describes a transverse wave on the string is given by :

$y=0.0120\ msin[(927\ rad/s)t-(3\ rad/m)x]$ ..............(1)

Where

y = displacement of a string particle

x = position of the particle on the string

The wave is travelling in the +x direction. We have to find the speed of the wave.

The general equation of traverse wave is given by :

$y=A\ sin(kx-\omega t)$ ................(2)

On comparing equation (1) and (2) we get,

k = 3 rad/m

Since, $k=\dfrac{2\pi}{\lambda}$

$\lambda=\dfrac{2\pi}{3}$ ..............(3)

Also, $\omega=927\ rad/s$

Since, $\omega=2\pi \nu$

$\nu=\dfrac{927}{2\pi}$ ...............(4)

Speed of the wave is the product of frequency and wavelength i.e.

$v=\nu\times \lambda$

Using equation (3) and (4), the speed of the wave can be calculated as :

$v=\dfrac{927}{2\pi}\times \dfrac{2\pi}{3}$

v = 312.34 m/s

Hence, the speed of the transverse wave is 312.34 m/s

5 0

3 years ago

How is chemical bonding related to the organization of the periodic table ?? (Can someone help me this is due tomorrow)

Paladinen [302]

when a chemical bonds with another chemical it creates an element that element can be a gas, liquid, solid, or a metal. depending on which chemicals bond you will get different elements

8 0

3 years ago

Read 2 more answers

What is the purpose of family?

Marrrta [24]

Answer:

Purpose of family:

Basically main role of a family towards the society is its continuity by both reproduction and interaction with each other. The main contribution of family to the society is society's continuation.

Types of families:

The family further divided into six types nowadays. Namely,

Nuclear Family
Single Parent
Extended Family
Childless Family
Step family
Grandparent Family

Defining each Family and their pros and cons :

1). Nuclear Family: The most basic kind of family is nuclear family based on two parents and their biological or adopted children. Number of children is variable, some have one and others have more than one. The main aim of the nuclear family is to up bring their kids and teach them how to socialize in the society.

Pros of nuclear family:

Both parents work and more likely financially stable
Children gets more balanced parenting
Concerned about education
Focus more on health issues both mental and physical
More socialize in the society

Cons of nuclear family:

Higher level of stress factor due to increased number of dependents
Have higher rates of disputes
Children become egotistical due to over possessive parents

2). Single Parent: Consists of either a mother or a father living with one or more than one child. Parents may initially married, separated or departed, or passed away (one of them). Like other family structures single parents also have some pros and cons.

Pros of single parent:

Close relationship with each other due to less family members
More responsible as duties are not being further divided.
Both children and parents are strong and independent

Cons of single parent:

Less income due to sole parent
May relay on financial help
Quality living may compromise due to sole earning
Children become mentally unstable by living alternatively with parents (in divorced cases).

3). Extended Family: Basically extended families are joint families, in which grandparents, parents and children live together to support each other both financially and socially.

Pros of extended family:

More tolerance level among children
Care and Respects for people older in age is practiced
Have emotional support
Have social support

Cons of extended family:

Face more financial crises due to large number of members in a family
Intervening in personal matters with each other
Low privacy

4).Childless Family: Partners who have no any children either by choice or due to infertility.

Pros of childless family:

More financially strong
No one to take care of
More free to do basic thing like travelling, shopping and fun activities
Have more chance to fulfill desired goal

Cons of childless family:

Develop fear of isolation by the time
Society pressure (not having kids)
Develop sense of lacking something important (infertile couples)

5). Step family:

When two families start living to gather, like two divorced people get married and living together with their children (from 1st partner).

Pros of step family:

Child gets advantage by living with both parents
Financially stable due to two source of incomes

Cons of step family:

Feeling of living forcefully with second parent
Couple fight often due to each other's children conflict
children develop leas tolerance

6) Grandparent Family: In which grandchildren are raised by their grandparents.

Pros of grandparent family:

Children have strong relationship with their elderly
More protective environment for children

Cons of grandparent family:

Less financially table
Difficult to raise children due to old age and related health issue
Big age gap

Similarities and Differences:

By considering the pros and cons of different family structure we come to the point that many of them have some similarities like financial stability, strong bonding, and more socialization. Likewise there are few differences as well as some families share strong bond while other suffers from isolation. Some are more financially stable and others are less. Some have children while other are childless. Some children have both parents while other have single or step patent. Some of them have high tolerance while other has less. Some live quality life whiles other compromise on their needs and wants.

7 0

3 years ago