Okay i'm totally stuck and nobody I know really gets it either, so i've turned to Yahoo for help :) Basically there are four aliens on a planet. They want to go on a sea-saw. The end seats on the sea-saw are 2m from the pivot, and the middle seats are 1m from the pivot. The Aliens way 400N, 300N, 200N and 100N - which two can sit on the sea-saw (on any of the seats) and make it balance? It'd be a huge help if you at least help me work out the answer! :)

Answers

Answer 1
Answer:
Here is the rule for see-saws here on Earth, and there is no reason
to expect that it doesn't work exactly the same anywhere else:

                     (weight) x (distance from the pivot) on one side
is equal to
                     (weight) x (distance from the pivot) on the other side.

That's why, when Dad and Tiny Tommy get on the see-saw, Dad sits
closer to the pivot and Tiny Tommy sits farther away from it.

       (Dad's weight) x (short length) = (Tiny Tommy's weight) x (longer length).


So now we come to the strange beings on the alien planet.
There are three choices right away that both work:

#1).
(400 N) in the middle-seat, facing (200 N) in the end-seat.

       (400) x (1)  =    (200) x (2)

#2).
(200 N) in the middle-seat, facing (100 N) in the end-seat.

       (200) x (1)  =    (100) x (2)

#3).

On one side:  (300 N) in the end-seat       (300) x (2) = 600

On the other side:
                      (400 N) in the middle-seat  (400) x (1) = 400
           and     (100 N) in the end-seat      (100) x (2) = 200
                                                    Total . . . . . . . . . . . . 600 


These are the only ones to be identified at Harvard . . . . . . .
There may be many others but they haven't been discarvard.


Answer 2
Answer: 400N and 100N on one side and 300N and 200N on the other side

Related Questions

What is the mass of an object weighing 63 N on Earth?
23°C = ______ K 23 296 -250 123
after the box has left the rubber band but is still moving upward, what is the passenger's apparent weight?
What object in the solar system is always one foci
Signal words most often used in a chronological essay are

For long-distance transmission of power, in order to reduce losses in the wires by driving a low current at high voltage, we shoulda) use a step-up transformer

b) change the length of the wires between transmission towers

c) not use a transformer at all

d) change the type of conducting material

e) use a step down transformer

Answers

ans d) change the type of conducting matey

For long-distance transmission of power, in order to reduce losses in the wires by driving a low current at high voltage, we should use a step-up transformer (a) .

(That's at the beginning, to step-up the voltage for long-distance transmission.  And then use a step-down transformer at the end, to reduce the voltage just before we pour it into the customer's house.)

I need some help, anything will help, I just need a better understanding of this

Answers

Answer:

12 meters

Explanation:

to find this we look at the 8 on the horizontal line this is 8 seconds, you then look upwards to see the height at that point in time

The formula for calculating potential energy is: A) Weight × vertical distance B) Force × displacement C) Weight / vertical distance D) Force / displacement

Answers

Pe = Mgh
So knowing this formula it will be vertical distance times weight aka answer A

What aspect of a hurricane determines how much rain will fall?

Answers

The answer is:

The track of the storm determines how much rain will fall.

The explanation:

-Storm tracks are the relatively narrow zones in seas and oceans where storms travel driven by the prevailing winds.

-hurricane is a tropical cyclone with winds of 74 miles (119 kilometers) per hour or greater that occurs especially in the western Atlantic, that is usually accompanied by rain, thunder, and lightning, and that sometimes moves into temperate latitudes. and it has aspects that can cause damage, these are flood, wind, surge, heavy rains and tornadoes.

THE TRACK OF THE STORM determines how much rain will fall.
Hurricane refers to a storm with violent wind, it usually occurs in tropical Caribbean areas. Each hurricane has five essential aspects that can cause damage, these are: flood, wind, surge, heavy rains and tornadoes.

Surgeons, engineers, carpenters, plumbers, electricians, and furniture movers all rely on trained experience with visual thinking. Describe how one of these tradespeople or someone in another occupation uses visual thinking in his or her work.

Answers

Answer:

by drawing in their minds pictures of the events.

Explanation:

A surgeon for example can imagine the size, length, width that need to use or cut in a body if he/she can figure out tridimentional models, in this way if is going to connect a heart pump can imagine how is going to be.

An engineer, can imagine how is going to be a new building. He can visualize where to put some electric plug depending the needs and the capacity of the building.

In this way all the projects that they have in their minds can put together the different parts by a drawing in their heads.

Answer:

by drwaing in their minds pictures of the events

Explanation:

What is potential energy?

Answers

Potential Energy is a type of energy that is "possessed" by a body of its position, electrical charge, etc.

Answer:

potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

Explanation: