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bearhunter [10]
2 years ago
5

Calculate the resistance of a resistor that has a voltage drop of 25 V and a current flow of .5 A.

Physics
1 answer:
Leona [35]2 years ago
5 0

Answer:

V=IR

25. =0.5 ×RESISTANCE

RESISTANCE=25/0.5

=50 ohms

answer is option B

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What type of energy results from the burning of wood or gasoline?
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Answer:

Chemical energy

Explanation:

Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine.

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2 What are the products of the following general reaction? acid + base _______ + _______ A. salt; water B. oxygen; hydrogen C. w
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Salt + water because salt dissolved in water

8 0
3 years ago
The formal beginning of psychology occurred in Germany and the United States by which two men ?
o-na [289]

Answer: Two men who helped in the development of psychology in Germany was Wilhelm Wundt, and in United States was William James.

Explanation:

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6 0
3 years ago
In medieval warfare, one of the greatest technological advancement was the trebuchet. The trebuchet was used to sling rocks into
NNADVOKAT [17]

Answer:

2) a_y= -g  3) vₓ=constant v_y = v_{oy} - g t, 4)  vₓ = v₀ₓ - ax t

5)  changes the horizontal speed, should change range

7) changes the vertical speed change the maximum height

Explanation:

1) After reading your long writing, we are going to solve the exercise, in the attachment you can see the different vectors.

2) The acceleration vectors are vertical and directed downwards due to the attraction of the Earth (gravity force) this force is constant, on the x axis there is no acceleration

3) the velocity vectors on the x-axis are constant because there are no relationships and the y-axis changes value according to the expression

           v_y = v_{oy} - gt

at the point of maximum height, vy = 0 is equal to the maximum height

4) For someone to change the horizontal acceleration we must assume a friction with the air, in this case they relate it would be in the opposite direction to the horizontal speed

In the graph it would be directed to the left, therefore the velocity would be

           vₓ = v₀ₓ - ax t

5 and 6) If someone changes the horizontal speed, they should change the range of the shot for greater horizontal speed, the rock goes further.

the equations of motion are

           x = v₀ₓ t

           y = v_{oy} t - ½ g t²

7) If someone changes the vertical speed change the maximum height, but not the scope of the shot, for higher speed higher maximum height,

the equations of motion are the same.

4 0
2 years ago
Feedback is _____?
Nat2105 [25]
The first choice Always given to you by other people

I hope this helped :3
7 0
3 years ago
Read 2 more answers
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