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Papessa [141]
3 years ago
15

Identify the elements that come before iron (Fe) in the periodic table Fe, Co, Cu, K, Ni, Mn

Physics
2 answers:
Dimas [21]3 years ago
8 0

Answer:

K, Mn

Explanation:

In a periodic table, the elements are arranged in order of increasing atomic number. The atomic numbers of the given elements are:

Fe  - 26

Mn - 25

Cu - 29

Co - 27

K - 19

Ni - 28

Thus, the elements that come before Iron (Fe) in the periodic table are Ni and Mn.

harkovskaia [24]3 years ago
5 0
FE is iron CO is cobalt CU is copper K is potassium NI is nickle MN is magnemese
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With an increase in temperature, the viscosity of liquids will: . (a) decrease (b) increase . (c) no change
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3 0
3 years ago
The circuits, P and Q, show two different ammeter-voltmeter methods of measuring resistance. Suppose the ammeter has a resistanc
qaws [65]

Answer:

Uncorrected values for

For circuit P

R = 2.4 ohm

For circuit Q

R = 2.4 ohm

Corrected values

for circuit P

R = 12 OHM

For circuit Q

R = 2.3 ohm

Explanation:

Given data:

Ammeter resistance 0.10 ohms

Resister resistance 3.0 ohms

Voltmeter read 6 volts

ammeter reads 2.5 amp

UNCORRECTED VALUES FOR

1) circuit P

we know that IR =V

R = \frac{6}{2.5} - 2.4 ohm

2) circuit Q

R = 2.4 ohm as no potential drop across ammeter

CORRECTED VALUES FOR

1) circuit p

IR = V

\frac{3R}{R+3} \times 2.5 = 6

R= 12 ohm

2) circuit Q

I\times (R+0.1) =V

R+0.1 =\frac{6}{2.5}

R = 2.3 ohm

5 0
3 years ago
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Explanation

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