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VashaNatasha [74]
2 years ago
6

GIVING BRAINLIST!!!!

Physics
2 answers:
Lena [83]2 years ago
6 0

ANSWER The charged object will lose its electrons and the uncharged object will absorb it

34kurt2 years ago
3 0
A negative object so it takes in the charged object and nothing will happen until something else would touch it I think
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What is the frequency of radiation whose wavelength is 0.80 nm ? express the frequency in inverse seconds to three significant d
Mashcka [7]
The relationship between the frequency (f) of an electromagnetic wave, the speed of the wave (which is the speed of light, c) and its wavelength \lambda is given by
f= \frac{c}{\lambda}

Since the wavelength of the radiation in the problem is \lambda= 0.80 nm = 0.80 \cdot 10^{-9} m, by substituting numbers in the formula we  can get the frequency:
f= \frac{3 \cdot 10^8 m/s}{0.80 \cdot 10^{-9} m} =3.75 \cdot 10^{17} s^{-1}
5 0
3 years ago
A car races around a circular track. Friction on the tires is the what that acts toward the center of the circle and keeps the c
Ivanshal [37]
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8 0
3 years ago
A hot iron ball of mass 200 g is cooled to a temperature of 22°C. 6.9 kJ of heat is lost to the surroundings during the process.
qaws [65]
Heat lost or gained, H = mc(θ₂ - θ₁) 
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m = 200g, c = 0.444 J/g°C, θ₁ = 22 °C  (Since it was cooled).

H = 6.9 kj = 6.9 *1000J = 6900 J

6900 = 200*0.444* (θ₂ - 22)

6900/(200*0.444)  =  θ₂ - 22

77.70 = θ₂ - 22

θ₂ - 22 = 77.7

θ₂      =  77.7 + 22 = 99.7

So initial temperature before cooling ≈ 100°C .  Option C.


5 0
3 years ago
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Visible light with a wavelength of 480 nm appears Question 33 options:
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It would appear as blue

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A wire runs left to right and carries a current in the direction shown.
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The direction of the magnetic field at point Z; Into the screen

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