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Delvig [45]
2 years ago
9

!! How much voltage is needed to generate a current of 20 Amps if a line has a resistance of 10 ohms ? How much power does the a

ppliance from question number one give off ? If the appliance runs for 3 minutes , how much energy is used ? Please help me
Physics
1 answer:
Marta_Voda [28]2 years ago
8 0

Answer:

Power = 4000watts

Energy = 22.22Joules

Explanation:

Power = I²R

I is the current

R is the resistance

t is the time

Given the following

I = 20Amps

R = 10ohms

t = 3miuntes = 180secs

Substitute

P = 20²*10

P = 400*10

P = 4000Watts

Hence the amount of power used is 4000Watts

Energy used = Power/time

Energy used= 4000/180

Energy used = 22.22Joules

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Answer:

cloudy and wet

Explanation:

cloudy and wet

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sam drove 44 meters to the right . she drove 13 meter to the left . what was her displacement ? what is displacement ?
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In the following equations, the distance x is in meters, the time tin seconds. and the velocity v is in meters per second. whata
lyudmila [28]

Answer:

A) c₁ = m, c₂ = m/s

B) c₁ = m/s²

C) c₁ = m/s²

D) c₁ = m/s c₂ = °

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Explanation:

A) x = c₁ + c₂t

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⇒m = m

So, c₁ = m, c₂ = m/s

B) x = 0.5c₁t²

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C) v² = 2c₁x

⇒m²/s² = 2 (m/s²)m

⇒m²/s² = m²/s²

So, c₁ = m/s²

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⇒m = (m/s) cos(°)s

⇒m = m

So, c₁ = m/s c₂ = °

E) v² = 2c₁v-(c₂x)²

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⇒m²/s² =m²/s²

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3 0
3 years ago
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Estimate the weight of a 1000kg car that is accelerating at 3 m/s/s.
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W = 9800  N

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Put all the values,

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So, the weight of the car is 9800  N.

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