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slega [8]
3 years ago
8

When you turn on a television , the electrical circuit

Physics
2 answers:
Vanyuwa [196]3 years ago
5 0
Closes. The circuit is therefore complete and current is able to flow through. 
77julia77 [94]3 years ago
5 0

Answer:

closes

Explanation:

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When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?
Mashutka [201]
-2. This is because it is gaining electrons. Electrons are negative. Therefore it is a negative charge.
6 0
3 years ago
A 20 kg cart moving at 4 m/s has how much momentum?
masha68 [24]

Answer:

We conclude that the required momentum is 80 kgm/s.

Explanation:

Given

  • Mass m = 20 kg
  • Velocity v = 4 m/s

To determine

The momentum p = ?

Important Tip:

  • The momentum of an object is the product of mass and velocity.

We can determine the momentum using the formula

p = mv

where

  • p is the momentum
  • m is the mass
  • v is the velocity

now substituting m = 20 and v = 4 using the equation

p = mv

p = (20) (4)

p = 80 kg m/s

Therefore, we conclude that the required momentum is 80 kgm/s.

6 0
3 years ago
Calculate the kinetic energy of a car that travels at a speed of 20 m/s and has a mass of 1200 Kg
Sophie [7]
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3 0
3 years ago
How does the amount of atmosphere affect what color the sky appears to be?
weeeeeb [17]
The atmosphere creates a cover over the earth preventing us from seeing space and it’s natural color and the light that is created by the sun reflected on the ocean creates the color that the sky appears to be blue
3 0
3 years ago
A car traveling at 25m/sec, stops in 0.103 km. what is the deceleration provided by the brakes?
lozanna [386]

Answer:

-3.03 m/s²

Explanation:

v² = v₀² + 2a(x − x₀)

where v is the final velocity,

v₀ is the initial velocity,

a is the acceleration,

x is the final position,

and x₀ is the initial position.

Given:

v = 0 m/s

v₀ = 25 m/s

x = 103 m

x₀ = 0 m

Find: a

v² = v₀² + 2a(x − x₀)

(0 m/s)² = (25 m/s)² + 2a (103 m − 0 m)

a = -3.03 m/s²

Round as needed.

7 0
3 years ago
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