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wolverine [178]
3 years ago
8

Which material will heat up the most quickly if placed near a heat source?

Physics
2 answers:
Thepotemich [5.8K]3 years ago
7 0

Answer:

Metal

Explanation:

Just answered on Apex

Vera_Pavlovna [14]3 years ago
3 0

Answer:

Metal

Explanation: Apex

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slader A baseball player slides to a stop on level ground. Using energy consideration, calculate the distance the 65 kg baseball
stich3 [128]

Answer:

2.6 m

Explanation:

From work energy theorem we deduce that

0.5mv^{2}=fd

The kinetic energy equals to the work dine against friction energy.

Where m represent mass, v is the velocity, f is the frictional force and d is unknown distance that the player slides.

Making d the subject of the formula then d=\frac {mv^{2}}{2f}

Then by substituting 450N for f, 65 kg for m and 6 m/s for v we obtain

d=\frac {65*6^{2}}{2*450}=2.6m

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3 years ago
Imagine a rock is dropped from the top of a tall building. After 2 seconds of falling, the rock’s instantaneous speed is approxi
shepuryov [24]
True
It's in free fall( 9.8 m/s), 2 seconds have passed.
3 0
3 years ago
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A physical quantity, G, is defined by G = (Original mass x time)/(change in mass), what is the S.I. unit of G ?
Andrei [34K]
The gravitational constant (G) in its base SI units is

3/2
m
3
k
g
/
s
2


But is often seen written as

⋅
N
⋅
2/2
m
2
/
k
g
2


Where N is the Newton unit. N=kg ⋅
⋅
m/s 2
2


4 0
2 years ago
I just want to shift to another country to learn like London so who can tell me the progress​
scoray [572]

Answer:

by shift do you mean travel

Explanation:

3 0
3 years ago
que ventajas e inconvenientes tienen las energias renovables, el agua del mar, agua embalzada, el sol, el viento
ahrayia [7]

Answer:

Ventajas ambientales:

La principal ventaja es la prácticamente es nula la emisión de gases de efecto invernadero (GEI).

* Ayudan a disminuir enfermedades relacionadas con la contaminación.

* No necesitan grandes cantidades de agua para su funcionamiento.

* No crean problemas de basura difíciles de resolver, como la eliminación de residuos nucleares o escorias.

Ventajas económicas:

*Generación de empleos directos (trabajadores de la construcción, desarrolladores, fabricantes de equipo, diseñadores, instaladores, financieros).

* Competencia y reducción de precios de las generadoras tradicionales por tener un nuevo competidor, que asegure confiabilidad del servicio.

ENERGÍA SOLAR INCONVENIENTES:

La instalación de paneles solares en casas o industrias no es barato, además no todas las vivienda pueden instalarse este tipo de paneles. La legislación en cuanto al uso de los paneles solares no es la misma en todo el mundo.

ENERGÍA EÓLICA INCONVENIENTES:

La creación de parques eólicos es muy cara, además hay colectivos que se opinen a la instalación de parques eólicos en tierra porque opinan que afea el paisaje y es peligrosos para las aves que chocan al volar cerca de las hélices de los generadores eólicos.

ENERGÍA DE LAS MAREAS INCONVENIENTES:

El movimiento de las mareas mueve las turbinas. El movimiento de las mareas es capaz de mover turbinas, pero para ello hay que construir represas o aluviones.

Entre los inconvenientes está que la construcción de aluviones es muy cara. Hay oposición de grupos ecologistas que destacan que esta energía puede tener un impacto negativo sobre la fauna acuática. La energía de las mareas puede reducir el flujo de las mareas e impedir el flujo de aguas residuales al mar.

Explanation:

5 0
3 years ago
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