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3 years ago

PLX HELP

Physics

2 answers:

kakasveta [241]3 years ago

8 0

Answer<em>: </em><em>THE ANSWER IS A!!</em>

Explanation:

Gnesinka [82]3 years ago

3 0

The answer to this question is A.

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The planet Uranus has a radius of 25,360 km and a surface acceleration due to gravity of 9.0 m/s^2 at its poles. Its moon Mirand

AlexFokin [52]

Answer:

$8.67791\times 10^{25}\ kg$

$0.34589\ m/s^2$

$0.07903\ m/s^2$

Explanation:

M = Mass of Uranus

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

r = Radius of Uranus = 25360 km

h = Altitude = 104000 km

$r_m$ = Radius of Miranda = 236 km

m = Mass of Miranda = $6.6\times 10^{19}\ kg$

Acceleration due to gravity is given by

$g=\dfrac{GM}{r^2}\\\Rightarrow M=\dfrac{gr^2}{G}\\\Rightarrow M=\dfrac{9\times 25360000^2}{6.67\times 10^{-11}}\\\Rightarrow M=8.67791\times 10^{25}\ kg$

The mass of Uranus is $8.67791\times 10^{25}\ kg$

Acceleration is given by

$a_m=\dfrac{GM}{(r+h)^2}\\\Rightarrow a_m=\dfrac{6.67\times 10^{-11}\times 8.67791\times 10^{25}}{(25360000+104000000)^2}\\\Rightarrow a_m=0.34589\ m/s^2$

Miranda's acceleration due to its orbital motion about Uranus is $0.34589\ m/s^2$

On Miranda

$g_m=\dfrac{Gm}{r_m^2}\\\Rightarrow g_m=\dfrac{6.67\times 10^{-11}\times 6.6\times 10^{19}}{236000^2}\\\Rightarrow g_m=0.07903\ m/s^2$

Acceleration due to Miranda's gravity at the surface of Miranda is $0.07903\ m/s^2$

No, both the objects will fall towards Uranus. Also, they are not stationary.

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3 years ago

What is the best explanation of Moon phases?

Marizza181 [45]

Waxing is when the moon gains more light that is visible to us from the sun and will eventually become a full moon which is when it looks like a pie and waining happens after the waxing process and eventually from our prospective will look like a banana

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3 years ago

This fossil snake and this living rat both have a structure in their skull called the quadrate bone. What best explains why both

kolbaska11 [484]

The snake and rat both share the same ancestor population that had a quadrate bone, which was inherited from an ancestor population.

<h3>What is a homo-logous structure?</h3>

A homo-logous structure is a trait that may or not have the same function but has a common evolutionary origin.

A homo-logous structure can be used to trace the evolutionary relationships between species.

Conversely, an analogous structure has the same function but it does not reflect an evolutionary origin.

Learn more about homo-logous structure here:

brainly.com/question/8405772

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2 years ago

What is the correct definition of solution?

STALIN [3.7K]

B.a homogeneous mixture

A solution is a homogeneous mixture of two or more substances. The amount of solute that can be dissolved in solvent is called its solubility.

4 0

3 years ago

a string along which waves can travel is 2.70 m long and has a mass of 260.0 g. the tension in the string is 36.0 n. what must b

stellarik [79]

By power transmitted by string, the frequency must be 163.31 Hz.

We need to know about power transmitted to solve this problem. The power transmitted by a wave on string can be determined by this equation

P = 1/2 . μ . ω² . A² . v

where P is the power, μ is mass per unit length of string, ω is angular speed, A is amplitude and v is wave propagation speed.

the wave propagation can be determined as

v = √(F.l/m)

where F is the string tension, l is length and m is the mass.

From the question above, we know that:

l = 2.7 m

m = 260 g = 0.26 kg

F = 36 N

A = 7.7 mm = 0.0077 m

P = 58 W

Find the mass per unit length

μ = m / l

μ = 0.26 / 2.7

μ = 0.096 kg / m

Find the wave propagation speed

v = √(F.l/m)

v = √(36. 2.7 /0.26)

v = √(373.85)

v = 19.34 m/s

Find the angular speed

P = 1/2 . μ . ω² . A² . v

58 = 1/2 . 0.096 . ω² . 0.0077² . 19.34

ω² = 1053777.29

ω = √1053777.29

ω = 1026.54 rad/s

Find the frequency

ω = 2πf

1026.54 = 2 . 3.14 . f

f = 163.31 Hz

Find more on power at: brainly.com/question/20229870

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2 years ago