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olga55 [171]
2 years ago
12

Suppose (for this statement only), that q is moved from the origin but is still within both the surfaces. The flux through both

surfaces remains unchanged. True False The area vector and the E-Field vector point in the same direction for all points on the spherical surface.True False The flux through the spherical Gaussian Surface is independent of its radius.True False The Electric Flux through the spherical surface is greater than that through the cubical surface.True False The E-Field at all points on the spherical surface is equal due to spherical symmetry.True False Suppose (for this statement only), that q is moved from the origin but is still within both the surfaces. The flux through both surfaces is changed.
Physics
1 answer:
o-na [289]2 years ago
7 0

Answer:

-True  - True  - true   - false -false - false

Explanation:

  • True The flow depends only on the charge into the surface, not on the relative position
  • True The two vectors are radial, so their relative direction  do not changes
  • True It just depends on the charge inside
  • False, it only depends on the charge, not on the form from the integration surface
  • False, because if it has a load inside it can be considered in the center, but if the load is outside the flow lines change direction with respect to the surface
  • False The flow depends only on the load inside, not on its position
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A 0.02kg dart is loaded into a toy spring gun by compressing the spring 6cm. If the spring has a constant of 20 N/m, find… a. Th
katrin2010 [14]

Answer:

a) 0.036 J b) 0.036J c) 0.036 d) 1.9m/s e) 0.18 m

Explanation:

Mass of the dart = 0.02kg, the spring was compressed to 6cm

Work needed to compress the spring = 1/2*k*x ^2 where k is the force constant of the spring in N/m, x is the distance it was compressed in m

Work needed to compress the spring = 0.5 * 20* 0.06^2 since 6cm = 6 / 100 = 0.06 m

Work needed to compress the spring = 0.036J

b) the total energy stored in the spring = the work done to compress the spring = 0.036J

c) kinetic energy of the dart as it leaves the the spring = elastic potential energy stored in the spring = the work done in compressing the = 0.036J using the law of conservation of energy; energy is neither created nor destroyed but transformed from one form to another.

d) 1/2mv^2 = 0.036

mv^2 = 0.036*2

v^2 = 0.036*2 / 0.02 = 3.6

v = √3.6 = 1.897 approx 1.9m/s

e) kinetic energy of the dart = work done against gravity to get the body to height h

Work done against gravity = potential energy conserved at height = -mgh g is negative because the motion is upward while gravity acts downward

0.036 = 0.02 * 9.81 * h

0.036 / ( 0.02*9.81) = h

h = 0.18 m

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Compare a cup of hot coffee with the Pacific Ocean. Which statement about thermal energy and temperature is correct?
Keith_Richards [23]
The answer is D

The body of water contains more molecules; more molecules, more kinetic energy, which creates thermal energy. 

The molecules are moving faster is the coffee, so the temperature is higher.
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first is gamma Ray's, last is d

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Answer:

True

Explanation:

The products of a reaction are determined by the type of chemical reaction that are taking place. This is very true.

In chemical reactions, bonds are broken and atoms re-arranged to form new products.

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