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nalin [4]
3 years ago
15

How many watt-hours does a 80 watt light bulb use if it runs for 3.5 hours?

Physics
1 answer:
coldgirl [10]3 years ago
3 0

Answer:

5 I Think

Explanation:

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57. A red ball (m= 10 kg) is moving at 3 m/s. A green ball (m = 8 kg) is moving at 3.5 m/s. Which ball has more
Alex Ar [27]

Answer:

the green ball has 4J more energy

Explanation:

The kinetic energy is given by the formula

K = 0.5 m v^2

the kinetic energy of the red ball:

K(red) = 0.5*10*3^2= 45J

of the green ball:

K(green)=0.5*8*3.5^2 = 49J

therefore the green ball has more energy by 4 Joules

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A spring with k = 500 N/m stores 704 J. How far is it extended from the equilibrium position
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Given that:

k = 500 n/m,

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spring extension (x) = ?

         we know that,

                      Work = (1/2) k x²

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                            x = 1.67 m

A spring stretched for 1.67 m distance.

4 0
3 years ago
Sics and Chemistry A (2nd Six Weeks) - SC3200SFA/01
Andreyy89
Force = Mass * Acceleration therefore the red ball with the higher mass will have more force and greater acceleration
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4 years ago
What does a animal and a plant cell have in common.
Allushta [10]

Answer:

Structures that are common to plant and animal cells are the cell membrane, nucleus, mitochondria, and vacuoles. Structures that are specific to plants are the cell wall and chloroplasts.

Explanation:

if correct plzz brainliest :D

8 0
2 years ago
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