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Klio2033 [76]
3 years ago
8

Are matter and weight the same thing?

Physics
2 answers:
astraxan [27]3 years ago
8 0
No, matter and weight are different
Genrish500 [490]3 years ago
7 0

Answer:

A: Mass is the amount of matter in an object and weight is the measurement of the gravitational pull on an object. The mass of an object is the same no matter where it is, but the weight of an object changes with the location of that object.

Explanation:

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kow [346]

Answer:

a) 1.2*10^{-3}cos(1.25t)

b) 0.49mV

Explanation:

a) The coil rotates periodically with period T. Hence, we can write the variation of the magnetic flux with a sinusoidal function, and with max flux NAB. Thus, we have that:

\Phi_B(t)=NABcos(\omega t)\\\\\omega=\frac{2\pi}{T}=1.25\frac{rad}{s}\\\\A=l^2=(0.02m)^2=4*10^{-4}m^2\\\\B=0.1T\\\\\Phi_B(t)=1.2*10^{-3}cos(1.25 t) W

where we have used the values given by the information of the problem for N B and A.

b)

the emf is given by:

emf=-\frac{d\Phi_B}{dt}=-NBA\omega sin(\omega t)\\\\emf(t=12.5s)=-(30)(0.1T)(4*10^{-4})(1.25\frac{rad}{s})sin(1.25*12.5)=1.49*10^{-4}V=0.49mV

hope this helps!!

5 0
3 years ago
A calcium-40 ion has a positive charge that is double the charge of a proton, and a mass of 6.64 ✕ 10−26 kg. At a particular ins
Zina [86]

Answer:

Detailed solution is given below

4 0
3 years ago
Which arrow represents the change of state described<br> above?<br> M<br> N<br> P<br><br> Q
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Answer: The Q arrow

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5 0
2 years ago
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Hatshy [7]

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7 0
3 years ago
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The third choice.

The driver wants to see the object that is behind him. The light reflects off the mirror into the eyes of the driver portraying the object behind him
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2 years ago
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