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Phantasy [73]
3 years ago
7

Which planet's gravitational pull is closest to that of Earth?

Physics
1 answer:
kykrilka [37]3 years ago
3 0

The acceleration of gravity on the surface of Venus
is 8.87 m/s² ... about 9.6% less than on Earth's surface.
That's the most similar of any body in our solar system.

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Power selection feature for resistors to become water modules 10 liters of water at 25°C to đến
Mila [183]

Answer:

P = 2439.5 W = 2.439 KW

Explanation:

First, we will find the mass of the water:

Mass = (Density)(Volume)

Mass = m = (1 kg/L)(10 L)

m = 10 kg

Now, we will find the energy required to heat the water between given temperature limits:

E = mCΔT

where,

E = energy = ?

C = specific heat capacity of water = 4182 J/kg.°C

ΔT = change in temperature = 95°C - 25°C = 70°C

Therefore,

E = (10 kg)(4182 J/kg.°C)(70°C)

E = 2.927 x 10⁶ J

Now, the power required will be:

Power = P = \frac{E}{t}

where,

t = time = (20 min)(60 s/1 min) = 1200 s

Therefore,

P = \frac{2.927\ x\ 10^6\ J}{1200\ s}

<u>P = 2439.5 W = 2.439 KW</u>

7 0
2 years ago
What environmental factors affect sound?
Mariana [72]

Answer:

Here are 5:

Distance from source to receiver

Wind speed and direction

Wind gradients

Temperature gradients

Atmospheric attenuation

and there are many more...

Hope that was helpful.Thank you!!!

7 0
3 years ago
Find the speed for Barkely, the dog, if he runs 5.5 miles in 3 hours
amm1812

Answer: B

Explanation:

5.5/3

6 0
3 years ago
What quantity is represented by a unit called a newton (N)?
zavuch27 [327]

\textsf {C. Force}

\textsf {The quantity which is represented by a unit called Newton (N)}\\\textsf {is Force.}

5 0
2 years ago
What is the speed of a wave that has a wavelength of 0.4 m and a frequency of 10 Hz
Shkiper50 [21]
<span>speed = wavelength x frequency
speed = 0.4m X 10 Hz
speed = 4 m/s</span>
4 0
2 years ago
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