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yanalaym [24]
2 years ago
6

Which two forces act over very small distances

Physics
1 answer:
Misha Larkins [42]2 years ago
3 0

Explanation:

There are three fundamental forces that act at a distance. They are gravitational, electromagnetic and nuclear forces.

hope it helps!

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Im bored help me join this if u want with friends
Lina20 [59]

Answer:

Ok ill be there.

Explanation:

7 0
3 years ago
A meter stick is pivoted at its 50 cm mark but does not balance because of non-uniformities in its material that cause its cente
Cerrena [4.2K]

Answer:

The mass of the stick is:

M=0,9428kg

The center of mass is at the 48,41cm mark

Explanation:

To be balanced in any case the resultant torque of the system must be zero.

For the first situation:

We have a 0,15kg mass al -0,4m from the pivot point, and a 0,3kg mass at +0,25m of the pivot point. On the other hand we know that the center of gravity of the stick is not at the 50cm mark point, so it will be at a X distance with a mass M, the torque sum:

0,15kg*(-0,4m)+0,3kg*0,25m+X*M=0

So:

(1)X*M=-0,015kgm

For the second situation:

Now the weights are interchanged, and as the pivot point has change, the distances from the pivot point are different:

We have a 0,3kg mass al -0,33m from the pivot point, and a 0,15kg mass at +0,32m of the pivot point. As the pivot has moved we have to move our reference for X: The center of gravity of the stick is at a X+0,07m distance with a mass M, the torque sum:

0,3kg*(-0,33m)+0,15kg*0,32m+(X+0,07m)*M=0

(X+0,07m)*M=0,051kgm

X*M+0,07m*M=0,051kgm

replacing X*M from (1):

-0,015kgm+0,07m*M=0,051kgm

The mass of the stick is:

M=(0,051kgm+0,015kgm)/0,07m=0,9428kg

and replacing this in (1):

X*0,9428kg=-0,015kgm

X=-0,015kgm/0,9428kg=-0,0159m=-1,59cm

As we took the 50cm mark as the reference, the center of mass is at the 48,41cm  mark

8 0
2 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP PLEASE
mixas84 [53]

Answer:

Correct answer: The fourth claim

Explanation:

No claim is most accurate but if you have to choose the best from the bad one, it's fourth - Its height decreased as its motion increased.

The potential energy depends from height  Ep = m g h and kinetic

energy depends besides mass from velocity (motion) Ek = m v²/ 2

God is with you!!!

8 0
3 years ago
________ are organisms that are able to convert the sun's energy into usable energy.
Semmy [17]
The answer would be producer
8 0
3 years ago
Find the magnitude of the resultant forces 6N and 8N inclined at an angle 240° to each<br>other.​
Nana76 [90]

Answer:

F = 7.2N

Explanation:

The resultant of two forces acting at some angle is given by using the vector addition as given below

F =√F1^2+F2^2+2F1F2cosθ

Where F1 = 6N and F2 = 8N

θ = 240°

Substituting the values into the equation above

F = √ 6^2+8^2+ 2(6×8)cos240

F =√ 36+64+96cos240

F = √ 100+96 ×-0.5

F = √ 100-48

F = √ 52

F = 7.211

F = 7.2N

7 0
3 years ago
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