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love history [14]
3 years ago
13

Which of the following best describes alternating current? current that increases and decreases in temperature current that cons

tantly turns on and off current in which charges change direction current that gains and loses electrons
Physics
2 answers:
VARVARA [1.3K]3 years ago
7 0
Current in which charge changes direction
adell [148]3 years ago
7 0

Answer: Charge that jiggles  back and forth very quickly.

Explanation: Alternating current is an electric current that peroidically reverses direction  .

A P E X

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Which quantity is a vector quantity?
stiks02 [169]

Explanation:

displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars. To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of combination.

4 0
1 year ago
A ball of clay is moving at a speed of 12 m/s collides and sticks to a stationary ball of clay. If each ball has a mass of 13 kg
LUCKY_DIMON [66]

Answer:

p_{f} = 6 m / s

Explanation:

We can solve this exercise using conservation of momentum. For this we define a system formed by the two balls, so that the forces during the collision have been intense and the moment is preserved

Initial instant. Before the crash

        p₀ = m v +0

Final moment. Right after the crash

        p_{f} = (m + m) v_{f}

how the moment is preserved

        p₀ = p_{f}

       m v = 2 m v_{f}

       v_{f} = v / 2

we calculate

       v_{f} = 12/2

       p_{f} = 6 m / s

8 0
3 years ago
Where would a car traveling on a roller coaster have the most potential energy
sveta [45]

At the top because it has the most potential to  go down. meaning it is a greater distance

c. At the top

6 0
3 years ago
List three examples of real science that you find on the internet or in real life
Darya [45]

for example

1. drinking water at least after 1 hour beacuse if we immediately drink water just after meal it dilutes the HCL produced in our stomach which hinders the digestion process

2.picking up tomatoes for salads which contains oxalic acid

3.Cutting apples which contains malic acid with knife then after sometimes it will trun into brown due to oxidation of iron present in a apple.

8 0
2 years ago
2. With regard to the pH scale, a solution with a pH
Alexandra [31]

Answer:

ph of 10 b your welcome

Explanation:

8 0
3 years ago
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