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Ivahew [28]
4 years ago
5

Which is the best way to determine if an object is made of pure gold?

Chemistry
1 answer:
netineya [11]4 years ago
3 0

Answer:

Acid?

Explanation:

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Why does the hull of an ocean -going ship rust quickly?
stepan [7]
Metal rusts when it oxidized around moisture.
4 0
3 years ago
What happens to the pressure if the gas volume is cut in half while n and I are<br> held constant?
N76 [4]

Answer: You can use Boyle's law, which states that pressure is inversely related to volume when other variables are held constant. If the final pressure of a gas is half of the initial, the volume must double if temperature is to remain the same.

Explanation:

5 0
4 years ago
Los hermanos Ana Victoria y José Leonardo están patinando en el hielo, con 25 y 20 kg respectivamente de masa, si Victoria empuj
andreyandreev [35.5K]

Utiliando las leyes de Newton encontraremos que la aceleración de Ana es -1.6 m/s^2.

La segunda ley de Newton dice que:

F = m*a

Fuerza es igual a masa por aceleración.

La tercera ley de Newton dice que cuando dos objetos interactuan, cadan objeto ejerce una fuerza de <u>igual magnitud pero opuesta direccion</u> en el otro.

Ahora veamos como aplicar esto.

Sabemos que la niña empuja al niño, asumamos que con una fuerza F.

Tendremos entonces la ecuación:

F = 20kg*(2m/s^2) = 40N

Y por la tercer ley de Newton, esta misma fuerza (pero en opuesta dirección) se aplica a la niña, entonces tendremos:

-40N = 25kg*a

-40N/25kg = a = -1.6 m/s²

La aceleración con la que retrosede la niña es -1.6 m/s²

Sí quieres aprender más, puedes leer:

brainly.com/question/17123407

3 0
3 years ago
Which statements are scientific statements
Harrizon [31]
Wym there is no question or statements.
6 0
3 years ago
20. You are approaching a downhill. Which configuration woulo
LenKa [72]

Answer: I think the answer is A

Explanation:

I’m sorry if I’m wrong.

4 0
2 years ago
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