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Kitty [74]
3 years ago
11

which of the following would decrease current flow in a circuit made originally from 1.5 volt battery, a loop of wire and a swit

ch
Physics
1 answer:
amid [387]3 years ago
4 0
 21. Magnetism is produced by the motion of electrons as they a. move around the nucleus. b. spin on their axes. c. both A and B d. none of the above 22. If you put a small compass in a magnetic field, the compass will a. line up in a direction parallel to the magnetic field lines. b. swing randomly. c. line up in a direction perpendicular to the magnetic field lines. d. seek electrical charge concentrations. 23. Magnetic field strength is a. strongest close to a magnet. b. constant everywhere around a magnet. c. strongest far from a magnet. 24. Magnetic domains are a. regions that may or may not be magnetized. b. clusters of atoms randomly aligned. c. regions of atoms magnetically aligned. d. blocks of material. 25. Earth's magnetic field is most likely due to a. millions of small magnets buried in Earth. b. a magnetized solid inner core of Earth. c. convection currents in the molten part of Earth's interior. d. the rotation of Earth acting on all of Earth's electrons. 
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When two or more identical capacitors are connected in series across a potential difference?
OlgaM077 [116]
<span>When two or more identical capacitors (or resistors) are connected
in series across a potential difference, the potential difference divides
equally among them.

For example, if you have nine identical capacitors (or resistors) all
connected end-to-end like elephants in a circus parade, and you
connect the string to a source of 117 volts (either AC or DC), then
you will measure

(117v / 9)  =  13 volts

across each unit in the string.</span>
6 0
4 years ago
an object weighing 15 newtons is lifted from the ground to a height of 0.22 meter what is the increase in the object's gravitati
kicyunya [14]
GPE= weight•height= 15 N• 0.22meter= 3.3 Joules
I hope this helps ~~Charlotte~~
5 0
3 years ago
Read 2 more answers
I got this information for a lab but I don't know how to do the hypothesis and the conclusion please can you guys help me with i
pochemuha

Answer:

A hypothesis is what you think will happen.

A conclusion is the results of an experiment summarized.

Hope this helps.

8 0
3 years ago
Compare the catching of two different water balloons.
Stels [109]

Answer:

a. The volume V₁ and V₂

b. The case that involves the greatest momentum change = Case B

c. The case that involves the greatest impulse = Case B

d. b. The case that involves the greatest force = Case B

Explanation:

Here we have

Case A: V₁ = 150-mL, v₁ = 8 m/s

Case B: V₂ = 600-mL, v₁ = 8 m/s

a. The variable that is different for the two cases is the volume V₁ and V₂

b. The momentum change is by the following relation;

ΔM₁ = Mass, m × Δv₁

The mass of the balloon are;

Δv₁ = Change in velocity = Final velocity - Initial velocity

Mass = Density × Volume

Density of water = 0.997 g/mL

Case A, mass = 150 × 0.997 = 149.55 g

Case B, mass = 600 × 0.997 = 598.2 g

The momentum change is;

Case A: Mass, m × Δv₁ = 149.55 g/1000 × 8 m/s = 1.1964 g·m/s

Case B:  Mass, m × Δv₁ = 598.2/1000 × 8 = 4.7856 g·m/s

Therefore Case B has the greatest momentum change

The case that has the gretest momentum change = Case B

c. The momentum change = impulse therefore Case B involves the greatest impulse

d. Here we have;

Impulse = Momentum change = F_{average} × Δt = mΔV

∴ F_{average} = m·ΔV/Δt

∴ For Case A F_{average} = 149.55×8/Δt =  1196.4/Δt N

For Case B  F_{average} = 598.2×8/Δt =  4785.6/Δt

Where Δt is the same for Case A and Case B,  F_{average}  for Case B >>  F_{average}  for Case B

Therefore, Case B involves the greatest force.

4 0
3 years ago
Explain how an intrusive igneous rock could become a metamorphic rock and then an extrusive igneous rock.
sleet_krkn [62]
1.igneous rocks are formed when magma or lava cools and hardens
2. the cooling rate of the rock
5 0
3 years ago
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