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LiRa [457]
3 years ago
12

Hellowhat is zenith define it ?​

Physics
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

hi,

When one stands at a particular place, the point in the sky directly above the head is called Zenith.

Explanation:

hope it helps(≡^∇^≡)

good day

thank u ✅

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Water flows over a section of niagara falls at the rate of 1.2x10^6 and falls 50.0 m. how much power is generated by the falling
iren [92.7K]

The solution for this is:

 

Power = Energy transferred / Time taken 

Energy Transferred in one second ( Power) = mgh/s 

= (1.2x10^6)(9.8)(50) = 588000000 J/s 

Power = 588000000 W

 

Or

 

Power is work done / time 


Work done in one second = [ rate of fall of mass]

gh = 1.2* *9.81*50 x 10^6 J/s

= 5.886e+8 W

6 0
4 years ago
What is the approximate pressure of air at sea level?
Len [333]
My guess would be 101 kPa but I'm not 100% sure, sorry.
4 0
4 years ago
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The fast server in women's tennis is Venus Williams, who recorded a serve of 130 mi/h (209 km/h) in 2007 If her racket pushed on
Darina [25.2K]
209 km/h = 58.0 m/s

2as = v² - u²
Assuming the ball started from rest,

a = (58)² / 2 x 0.11

a = 15,290 m/s²
7 0
3 years ago
The device used to measure a masses of a body is kilogram . true or false​
olga nikolaevna [1]

Answer: false

Explanation:

While kilograms are the unit used to measure body mass, the device used is a scale.

Hope it helps :)

6 0
3 years ago
A 2cm length of wire centered on the origin carries a 20A current directed in the positive y direction. Determine the magnetic f
skad [1K]

Answer:

The magnetic field at a distance x = 5 m is 1.59 nT

Explanation:

Length of the wire, L = 2 cm = 0.02 m

Current, I = 20 A

x = 5 m

Magnetic field at a distance x = 5 m due to an infinitely long wire is given by:

B = \frac{\mu_{o}IL}{4\pi x\sqrt{x^{2} + L^{2}}}

B = \frac{4\pi\times 10^{- 7}\times 20\times 0.02}{4\pi \times 5\sqrt{5^{2} + 0.02^{2}}} = 1.59\times 10^{- 9}\ T

3 0
3 years ago
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