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Lerok [7]
3 years ago
15

What is the speed of a proton after being accelerated from rest through a 5.7×107 v potential difference? express your answer us

ing two significant figures?
Physics
1 answer:
Norma-Jean [14]3 years ago
7 0
I think it is =616.
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How much heat is absorbed by a 75g iron skillet when it’s temperature rises from 5c to 20c?
alexira [117]

Answer: Q=499.5 J  

Explanation:

The heat (thermal energy) absorbed by the iron skillet can be found using the following equation:

Q=m.C.\Delta T   (1)

Where:

Q is the heat  (absorbed)

m=75 g is the mass of the element (iron in this case)

C is the specific heat capacity of the material. In the case of iron is C=0.444\frac{J}{g\°C}

\Delta T=T_{f}-T_{i}=20\°C - 5\°C= 15\°C is the variation in temperature

Knowing this, lets rewrite (1) with these values:

Q=(75 g)(0.444\frac{J}{g\°C})(15\°C)  (2)

Finally:

Q=499.5 J  

6 0
3 years ago
what is the true answer in this question?Making a schedule on the things that need to be accomplished yes or no​
musickatia [10]

Answer:

yes

Explanation:

this is true don't believe other people whether right or wrong

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2 years ago
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The answer to the question above is c hope this helps !!!!
8 0
3 years ago
According to newton's third law of motion, when a hammer strikes and exerts force to push it into a piece of wood, the nail
Darya [45]
According to newton's third law of motion, when a hammer strikes and exerts force to push it into a piece of wood, the nail <span>C. exerts an equal or opposite force on the hammer. The third law of motion states that every action has an equal BUT opposite reaction. This means that the nail exerts the same force the hammer exerts on it.</span>
6 0
3 years ago
Read 2 more answers
obesity occurs due to (a) overeating of carbohydrates and fats(b) not eating enough carbohydrates and fats (c) overeating of vit
aniked [119]

Answer:

B for BIG

Explanation:

carbs and fats is energy, if not being use or burned off, it'll be becomes body fat.

5 0
3 years ago
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