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mojhsa [17]
3 years ago
10

Torque is the rotational quantity most closely related to the linear quantity

Physics
1 answer:
jek_recluse [69]3 years ago
4 0

Answer:

The definition of torque states that one or both of the angular velocity or the moment of inertia of an object are changing.

Velocity and momentum

Explanation:

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Se colocan tres objetos, muy cerca uno del otro, dos al mismo tiempo. Cuando se juntan los objetos A y B, se repelen. Cuando se
docker41 [41]

Answer:

Los objetos A y C tienen cargas del mismo signo (opcion a)

Explanation:

Hay dos tipos de cargas : cargas positivas y cargas negativas.

La Ley de Coulomb dice que la fuerza electrostática entre dos cargas puntuales es proporcional al producto de las cargas e inversamente proporcional al cuadrado de la distancia que las separa, y tiene la dirección de la línea que las une y se cumple que:

  • La fuerza ejercida sobre una carga apunta hacia la otra cuando las dos tienen distinto signo (fuerza atractiva).
  • El sentido de la fuerza se dirige hacia el lado opuesto de la carga cuando ambas tienen el mismo signo (fuerza repulsiva).

Es decir que las cargas de igual signo se repelen, mientras que las de diferente signo se atraen.

Entonces, si se juntan los objetos A y B y se repelen significa que la carga es del mismo signo.

Cuando se acercan los objetos B y C, se repelen. Entonces significa que posee carga de igual signo.

Por lo que podes concluir que <u><em>los objetos A y C tienen cargas del mismo signo (opcion a)</em></u>

8 0
3 years ago
A mass of 2000 kg is raised 2.0 m in 10 seconds. What is the potential energy of the mass at this height?
Kaylis [27]
Gravitational potential energy is defined as the amount of energy an object possesses at a given height above the Earth's surface. The equation for gravitational energy is E = mgh. Here, m is the mass of the object, g is the acceleration due to gravity, and h is the height above the Earth's surface. Hence, the answer is E = 2000kg x 9.81m/s^2 x 2m = 39240 Joules. 
4 0
4 years ago
Explain the advantage of operating a motor vehicle that is 20% efficient instead of one that is 10% efficient
Jet001 [13]
Save money on fuel and go for longer
5 0
4 years ago
An engine extracts 452.8kJ of heat from the burning of fuel each cycle, but rejects 266.7 kJ of heat (exhaust, friction,etc) dur
Svetlanka [38]

Answer: The thermal efficiency of the engine is 41.09 %.

Explanation:

Efficiency is the ratio of the useful work performed to the total energy expended or heat taken in.

Formula for thermal efficiency of engine is

\eta=1- \frac{Q_2}{Q_1}\times 100

\eta = efficiency

{Q_2} = heat rejected = 266.7 kJ

{Q_1} = heat extracted = 452.8 kJ

Putting in the values we get:

\eta=1- \frac{266.7 kJ}{452.8 kJ }\times 100

\eta=0.41\times 100

\eta =41.09\%

The thermal efficiency of the engine is 41.09 %.

7 0
4 years ago
What would happen to the planets in the solar system if the sun’s gravitational force were to suddenly disappear?
FinnZ [79.3K]
They would stop rotating meaning one side would have no sun the other would, meaning no crops no water = death
6 0
3 years ago
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