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Yuki888 [10]
4 years ago
7

How many earths could fit inside jupiter

Physics
1 answer:
Snezhnost [94]4 years ago
8 0

1,300 or more.

hope this helped :)

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A wire has a current density of 6.25 × 10 6 A / m 2 6.25×106 A/m2 . If the cross-sectional area of the wire is 1.79 mm 2 1.79 mm
joja [24]

Answer:17.44A

Explanation: Current density=I/Area

Area is given by 2.79mm^2=2.79×10^-6m^2

Current=I=current density ×Area=6.25×10^6 ×2.79×10^-6=17.44A

3 0
3 years ago
A 15 m long garden hose han an inner diameter of 2.5 cm. One end is connected to a spigot; 20 C water flows from the other end a
pogonyaev
We can solve this problem using <span>Hagen–Poiseuille equation. Derivation of this equation is a bit complicated so I will just write down the equation.
</span>\Delta P= \frac{8\mu QL}{\pi R^4}
This equation gives you the pressure drop <span>in an </span>incompressible<span> and </span>Newtonian<span> fluid in </span>laminar flow<span> flowing through a long cylindrical pipe of the constant cross section.
L is the length of the cylinder, Q is the volumetric flow rate, R is the radius of the pipe, and \mu is dynamic viscosity.
Dynamic viscosity of water at 20 Celsius is 0.001 PaS. 
Now we can calculate the pressure drop:
</span>\Delta P= \frac{8\cdot 0.001\cdot 15 \cdot 0.015}{\pi 3.9\cdot 10^{-7}}=1469.12 $Pa<span>
</span>
7 0
3 years ago
Light from a distant star is collected by a concave mirror that has a radius of curvature of 150 cm. How far from the mirror is
andrey2020 [161]
The focal point of a mirror is half of the radius of curvature. We can use the formula,                                                                                                                   1/f = 1/v + 1/u                                                                                                          where f is the focal length , v is the image distance and u is object distance        The distance of the star is assumed to be incredibly far away and 1 divided by a really big number is approximately zero, thus;                                                     1/f = 1/v  = 1/75 = 1/v                                                                                             therefore; the image is formed 75 cm infront of the mirror
4 0
4 years ago
Felipe drives his car at a velocity of 28 m/s. He applies the brake, which slows the vehicle down at a rate of 6.4 m/s2 and caus
Dmitry_Shevchenko [17]

Answer: it takes 4.375 s for the car to stop

For this case we have that the final speed is given by:

Where,

a: acceleration

vo: initial speed

t: time

Clearing the time we have:

Substituting values we have:

Answer:

it takes 4.375 s for the car to stop

Explanation:

4 0
4 years ago
Read 2 more answers
When poked by a spear, an operatic soprano lets out a 1200-Hz shriek. What is its wavelength if the speed of sound is 345 m/s
Serhud [2]

Answer:

0.3m

Explanation:

Given data

Frequency= 1200Hz

Wave length= 345m/s

We know that

v= fλ

substitute

345= 1200*λ

λ = 345/1200

λ= 0.3m

Hence the Wave lenght is 0.3m

7 0
3 years ago
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