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gladu [14]
3 years ago
5

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

Physics
2 answers:
oksano4ka [1.4K]3 years ago
6 0

Explanation :

Voltaic cells are an electro chemical cell in which chemical reactions occurs to produce electrical energy. Its parts are :

(i) At anode oxidation occurs.

(ii) At cathode reduction occurs.

(iii) A salt bridge.

(iv) External circuit.

(v) Load.

Suppose a voltaic cell is made up of ZnSO_4 and CuSO_4. Here zinc can lose electron more rapidly as that of copper. Oxidation of zinc occurs and is called as anode. So, this is a negative terminal.

On the other hand, copper receives electron and hence become cathode. So, this is a positive terminal.

Hence, electrons flow form Zinc to copper i.e. from negative terminal to positive terminal.

Usimov [2.4K]3 years ago
6 0

Answer:

^ Shirleywashington is correct. The rating of her answer is misleading, but the answer is negative to positive.

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Calculate the electric field strength at a point at which a test charge of 0.30 coulombs experiences a force of 5.0 newtons.
SVEN [57.7K]

The strength of electric field E is 17 N / C.

<u />

<u>Explanation:</u>

Electric field strength is defined as the force per unit charge acting at a point in the given field. The equation for the strength of the electric field is given by

                     E = F / q

where E represents the electric field strength,

           F represents the force in newton,

           q represents the charge in coulomb.

Given the charge q = 0.30 coulombs

                   force F = 5.0 N

Electric field strength E = force / charge

                                        = 5.0 / 0.30

                                    E  = 16.66 = 17 N / C.

5 0
3 years ago
Which is an example of an exothermic process?
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Answer:

an example of an exthermic process is combustion

Explanation:

combustion is like lighting a candle

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3 years ago
9- Under what circumstances would a vector have components that are equal in
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Explanation:

c. if the vector is oriented at 0° from the X -axis.

6 0
2 years ago
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The space shuttle orbits 310 km above the surface of the Earth.
MAVERICK [17]

Answer:

44.7 N

Explanation:

The gravitational force between the objects is given by:

F=G\frac{mM}{r^2}

where

G is the gravitational constant

m and M are the masses of the two objects

r is the distance between the centres of the two objects

In this problem, we have:

m=5.0 kg is the mass of the sphere

M=5.98\cdot 10^{24} kg is the Earth's mass

R=6370 km is the Earth's radius, while h=310 km is the altitude of the sphere, so the distance of the sphere from Earth's centre is

r=6370 km+310 km=6680 km=6.68\cdot 10^6 m

Substituting into the equation, we find

F=(6.67\cdot 10^{-11})\frac{(5.0 kg)(5.98\cdot 10^{24} kg)}{(6.68\cdot 10^6 m)^2}=44.7 N

8 0
3 years ago
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