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Gre4nikov [31]
3 years ago
9

I NEED HELP ASAP!!!!!!!!!!! Draw a circuit with a switch, and 5 light bulbs. 3 of the bulbs must be in a series and be operated

by the switch. The other 2 bulbs need to be parallel to each other and the first 3 bulbs but should not be affected by the switch. Include a battery.
Physics
1 answer:
Ira Lisetskai [31]3 years ago
3 0

Answer:

I added a pic

Explanation:

I added a pic

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The iron content of iron ore can be determined by titration with a standard solution. The iron ore is dissolved in , and all the
GalinKa [24]

Answer:

2.11 %

Explanation:

In acidic medium iron is in Fe ⁺³ oxidation state .

Equivalent weight = 56 / 3

= 18.33 gm

acid used in titration

= 16.37 mL of .0233 M

= 16.37 x .0233 mL of M soln

= .38 mL of M soln

.38 mL of M soln reacts with .3298 gm of ore

1000 mL of M soln = (.3298 / .38)  x 1000 gm of iron ore

867.89 gm

This must contain one gm equivalent of iron

or 18.33 gm

867.89 gm of ore contains 18.33 gm of iron

mass % of iron in the given ore

= (18.33 / 867.89)  x 100

= 2.11 %

7 0
3 years ago
Which of the following best summarizes the quantum model of atoms?
Lelechka [254]
I believe it is A. Electrons reside in known positions in fixed orbits around the nucleus
6 0
3 years ago
Faraday's law states that voltage can be changed by moving the coil out of the magnetic field true or false
NNADVOKAT [17]

As per Faraday's law of induction we know that induced EMF in a conducting closed loop is equal to rate of change in flux in that loop

So here we have

V = \frac{d\phi}{dt}

now when we move out a coil from magnetic field then in this case there will be EMF induced in that coil as here magnetic flux is changing with time linked with the coil.

Now this induced voltage will remain constant if coil is moved out uniformly

But it will not remain constant if coil is moved out with non uniform speed

So this statement is not always true

so answer must be

<u>FALSE</u>

8 0
3 years ago
How is wind generated?
just olya [345]

Answer:

Explanation:

Wind is caused by the uneven heating of the atmosphere by the sun, variations in the earth's surface, and rotation of the earth. ... Wind turbines convert the energy in wind to electricity by rotating propeller-like blades around a rotor. The rotor turns the drive shaft, which turns an electric generator

6 0
3 years ago
At which point does the planet have the least gravitational force acting on it?
Elza [17]

Answer:

At which point does the planet have the least gravitational force acting on it?

Explanation:

In an elliptical orbit, when a planet is at its furthest point from the Sun, it is under the least amount of gravity, meaning that the force of gravity is strongest when it is closest.

5 0
3 years ago
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