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LenaWriter [7]
3 years ago
11

25 PTS AND BRAINLIEST ANSWER PLEASE HELP ME BEFORE 9 PM

Physics
1 answer:
Alika [10]3 years ago
4 0

Answer:

I think?

Explanation:

1.  20 seconds

2. 1 mile

3.  3 miles

I think i got it right not sure

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What is sound reverberation?
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Sound reverberation is created when sound or signal is reflected.
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3 years ago
1. Is the relationship between velocity and centripetal force a direct, linear relationship or is it a nonlinear square relation
Svetllana [295]

Answer:

non linear square relationship

Explanation:

formula for centripetal force is given as

a = mv^2/r

here a ic centripetal acceleration , m is mass of body moving in circle of radius r and v is velocity of body . If m ,and r are constant we have

a = constant × v^2

a α v^2

hence non linear square relationship

7 0
3 years ago
What is the Isotope notation for a Lithium atom?
Serggg [28]
Lithium has five isotopes, and each will have different notation. Lithium-7 is commonly used in salt and nuclear reactors. .ZAX , where X is the atomic symbol for the element, here Li for lithium, Z is the mass number, or the total number of protons and neutrons, and A is the atomic number, or the number of protons
6 0
3 years ago
. Si mi mejor amigo vive a 100 metros de mi casa (una cuadra aproximadamente) y sabe qué cuando pongo una canción determinada es
Damm [24]

Answer:

Nuestro mejor amigo escuchará la música más rápido a una temperatura de 36 ºC (309.15 K)

Explanation:

Supongase que el aire se comporta como un gas ideal y que experimenta un proceso adiabático, entonces la velocidad del sonido (v), medida en metros por segundo, queda traducida en la siguiente fórmula:

v = \sqrt{\frac{\gamma \cdot R_{u}\cdot T}{M} } (1)

Donde:

\gamma - Coeficiente de dilatación térmica, sin unidad.

R_{u} - Coeficiente universal de los gases ideales, medido en kilogramo-metros cuadrados por mol-Kelvin-segundo cuadrado.

T - Temperatura, medida en Kelvin.

M - Masa molar, medida en kilogramos por mol.

Como se puede ver, la velocidad del sonido es directamente proporcional a la raíz cuadrada de la temperatura. Por tanto, nuestro mejor amigo escuchará la música más rápido a una temperatura de 36 ºC (309.15 K)

3 0
3 years ago
Can anyone answer this please?
Umnica [9.8K]
B is the correct answer according to my calculations.
5 0
3 years ago
Read 2 more answers
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