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Alekssandra [29.7K]
3 years ago
14

The electric potential in a certain region varies with position as V(x) = ax2 - bx + c, where a = 2.2 V/m2, b = 16.5 V/m, and c

= 14 V. A) Find the electric field vector E. B) What is the magnitude of the electric field, in volts per meter, at x = 1.0 m? C) What is the direction of the electric field at x- 1.0 m?D) What is the magnitude of the electric field, in volts per meter, at x 5.0 m?
Physics
1 answer:
Effectus [21]3 years ago
6 0

Answer:

idk it its A

Explanation:

i did it

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Answer:25N/M^2

Explanation:

Force=20N Area=0.8M^2

Stress=force/area

Stress=20/0.8

Stress=25N/M^2

4 0
4 years ago
A spring (k = 200 N/m) is suspended with its upper end supported from a ceiling. With the spring hanging in its equilibrium conf
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Answer:

V = 6.81\frac{m}{s}

Explanation:

Data:

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mass = 2.0 kg

x = 4.0 cm => 0.04m

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Fe - P = -ma_{y}

the minus sign we use to indicate that the object is going down

Using the Hooke's law:

Fe = k*x      where x is the spring compression

k*x - m*g = ma_{y}

a_{y} = \frac{k*x - m*g}{m}

a_{y} = \frac{200*0.04 - 2*9.8}{2}

a_{y} = 5.8\frac{m}{s^{2} }

V^{2} = Vo^{2} + 2*a_{y} *(X - Xo)

Vo = o\frac{m}{s}

Xo = 0m

V^{2} = 0 + 2*5.8 *(4)

V^{2} = 46.4

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4 0
3 years ago
Air that is not saturated will cool or heat at a rate of __________________ as it rises or descends, respectively
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Air that is not saturated will cool or heat at a rate of 10 degrees C/1000 meters as it rises or descends, respectively

The rate of the change in temperature which is observed while moving upward in the earth's atmosphere with elevation. It can be positive, negative and zero when the temperature decreases, increases or is constant with the elevation respectively.

For the atmosphere, the drop in temperature of rising air that is  unsaturated air is about 10 degrees C/1000 meters (5.5 °F per 1000 feet) altitude.

That means if a there occur a rise of 1000 m , then the temperature of that thing will decrease to 10 degrees. Every 10°C of temperature from the given temperature will decrease at every rise of 1000 m .Air that is not saturated will cool or heat at a rate of 10 degrees C/1000 meters as it rises or descends, respectively

To learn more about unsaturated air here

brainly.com/question/13434971?referrer=searchResults

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7 0
2 years ago
Think about a time you heard a sound come from another room in your house. How did those sound waves get to you if there were ob
IgorLugansk [536]

Answer:

this sound wave get to the other by either undergoing either reflection,absorption or transmission

Explanation:

When a sound wave meets an obstacle, some of the sound is reflected back from the front surface and some of the sound passes into the obstacle material, where it is absorbed or transmitted through the material like the building walls

Thus, Reflection and absorption are dependent on the wavelength of the sound. Hence percentage of the sound transmitted through an obstacle depends on how much sound is reflected and how much is absorbed.

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Answer:

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