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melamori03 [73]
2 years ago
15

2.

Physics
1 answer:
Shkiper50 [21]2 years ago
5 0

Answer:

the balloon is filled with the 8.5 litre of helium. temperature is 294 kelvin.

party starts at 4 p.m.

the temperature rises 305 kelvin.

the new volume = 4 litres

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sorry if its wrong but 2 hours??

6 0
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A fairgrounds ride spins its occupants inside a flying saucer-shaped container. if the horizontal circular path the riders follo
Valentin [98]

We know that the acceleration due to gravity g is: g = 9.81 m/s^2

So the centripetal acceleration (w) is:

w^2 = 1.5 g / r

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w = 1.716 rad / s

To convert to rad to rev:

w = (1.716 rad / s) * (1 rev / 2π rad) * (60 s/min)

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3 years ago
On a night when the moon rises at 9 pm, what is its phase?
Leni [432]
Waning Gibbous would be the phase?
5 0
3 years ago
The distance between the lenses in a compound microscope is 18 cm. The focal length of the objective is 1.5 cm. If the microscop
Blababa [14]

Answer:

The focal length of eye piece is 6.52 cm.

Explanation:

Given that,

Angular Magnification of the microscope M = -46

the distance between the lens in microscope L= 16 cm

The focal length of objective f₀ = 1.5 cm

Normal near point N = 25 cm

Have to find focal length of eye piece f ₙ =?

The angular magnification is given by

M ≈ - (L-fₙ)N/f₀fₙ

Rearranging for fₙ

fₙ =L(1 - Mf₀/N)⁺¹

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The focal length of eye piece is 6.52 cm.

6 0
3 years ago
Dos cargas iguales de 10^-7C estan separadas por una distancia de 2m. calcule la fuerza con que se repelen
m_a_m_a [10]

Answer:

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According to question,

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So, the electric force of repulsion is 2.25\times 10^{-5}\ N.

8 0
2 years ago
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