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Sindrei [870]
2 years ago
6

2. Which of the following is NOT true of work?

Physics
2 answers:
salantis [7]2 years ago
3 0

Answer:

D

Explanation:

Work is not a vector but it is a scalar

kirill115 [55]2 years ago
3 0

Answer:

D

Explanation:

D. its is a vector which is always in the same direction as the displacement

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Friction is a force in which two objects __________.
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The answer should be C) Slide against each other.
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Which of the following statements is TRUE? The side of the Moon facing away from the Earth is in perpetual darkness. The Moon is
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How does energy travel in a mechanical wave?
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Ans of this question A test charge of 1 couloumb moved from 30cm against the field of intensity 50N/c find the energy store in i
UkoKoshka [18]

Answer:

A. Zero

Explanation:

Given data,

The charge of the test charge, q = 1 C

The distance the charge moved against the filed of intensity, x = 30 cm

                                                                                                        = 0.3 m

The electric field intensity, E = 50 N/C

The energy stored in the charge at 0.3 m is given by the formula,

                                V = k q/r

Where,                        

                                     = 9 x 10⁹ Nm²C⁻²

The charge is moved from the potential V₁ to V₂ at 30 cm

Substituting the given values in the above equation

                            V₁ = 9 x 10⁹ x 30 / 0.3

                                =  1.5 x 10¹² J

And,

                            V₂ = 1.5 x 10¹² J

The energy stored in it is,

                             W = V₂ - V₁

                                  = 0

Hence, the energy stored in the charge is, W = 0        

6 0
3 years ago
What is 6.39 times 10 to the 23rd power
Sveta_85 [38]

Answer:

6.39*(10 to the 23rd)=

6.39*10²³

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