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lys-0071 [83]
3 years ago
12

1Calcula la fuerza necesaria para subir un peso de 500 N con una palanca si el brazo de potencia mide 3 mt y el de resistencia 1

,5 mt.
2. Tenemos una palanca de 1,5 mts de largo, con el punto de apoyo a 0,5 mt de la carga. Si disponemos de una máquina que aplica una fuerza de 400 N; que peso máximo podriía levantar.
3. Una persona de 60 Kg y otra de 40 están sentadas en un balancín de un parque de forma que la primera está a 2 mt del punto de apoyo. A que distancia del punto de apoyo debe sentarse la segunda persona para que el balancín esté en equilibrio. Dibujar el esquema.
4. Se tiene una piedra de 30 Kg para levantarla con una palanca de 1,8 mt de larga. Si la palanca se apoya a 0,8 mt de la piedra, cuál debe ser la fuerza aplicada para levantar la piedra?.


hay alguien de taaaan buen corazón por 20 pnts
Physics
1 answer:
Zepler [3.9K]3 years ago
4 0

Answer:

Next we come to calculating the mechanical advantage of a lever. To do this, you divide the distance from the fulcrum, the point at which the lever pivots, to the applied force by the distance from the fulcrum to the resistance force.

Explanation:

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The moon's surface gravity is one-sixth that of the earth. Calculate the weight on the moon of an object that has a mass of 24 k
ad-work [718]
When we say "<span>The moon's surface gravity is one-sixth that of the earth.",
we mean that the acceleration of gravity on the Moon's surface is 1/6 of
the acceleration of gravity on the Earth's surface.

The acceleration of gravity is (9.8 m/s</span>²) on the Earth's surface, so
<span>it would be (9.8/6 m/s</span>²) on the Moon's surface.
<span>
The weight of any object, right now, is

(object's mass) </span>· (acceleration of gravity where the object is located now) .
<span>
If the object's mass is 24 kg and the object is on the Moon right now,
then its weight is 

(24 kg) </span>· (9.8/6 m/s²)

= (24 · 9.8 / 6) kg-m/s²

= 39.2 Newtons
7 0
3 years ago
Anyone know these questions?
salantis [7]
400m in 32sec: (400/32)>12.5meters per second>
(12.5)(60)(60)(1/1000)=45km per hour
Constant speed would mean that the two forces are equivalent
7 0
3 years ago
Why are the trends for electronegativity and ionization energy similar
Goshia [24]

Answer:

Explanation:

Ionization Energy Trends

Ionization energy is the energy required to remove an electron from a neutral atom in its gaseous phase. Conceptually, ionization energy is the opposite of electronegativity. ... As a result, it is easier for valence shell electrons to ionize, and thus the ionization energy decreases down a group

3 0
3 years ago
g An airplane is flying through a thundercloud at a height of 1500 m. (This is a very dangerous thing to do because of updrafts,
Stolb23 [73]

Answer:

523269.9\ \text{N/m}

Explanation:

q = Charge

r = Distance

q_1=25\ \text{C}

r_1=3000\ \text{m}

q_2=40\ \text{C}

r_2=850\ \text{m}

The electric field is given by

E=E_1+E_1\\\Rightarrow E=k(\dfrac{q_1}{r_1^2}+\dfrac{q_2}{r_2^2})\\\Rightarrow E=9\times 10^9\times (\dfrac{25}{3000^2}+\dfrac{40}{850^2})\\\Rightarrow E=523269.9\ \text{N/m}

The electric field at the aircraft is 523269.9\ \text{N/m}

4 0
3 years ago
What is the relationship between momentum and kinetic energy.
Margaret [11]

Answer:

constant object, momentum increases directly with speed

Explanation:

whereas kinetic energy increases the square of the velocity due to energy momentum

6 0
3 years ago
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