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kenny6666 [7]
3 years ago
14

An Electric Field does 25 mJ of work to move a +7.4 μC charge from one point to another. What is the potential difference betwee

n these two points?
Physics
1 answer:
son4ous [18]3 years ago
7 0

Answer:

P.d = 3.4 * 10^3 volts

Explanation:

Given the following data:

Workdone = 25mJ = 25*10^{6} Joules

Charge = 7.4 μC = 7.4 * 10^{3} C

To find the potential difference;

P.d = workdone/charge

Substituting into the equation, we have;

P.d = 25 * 10^6/7.4*10^3

P.d = 3.4 * 10^3 volts

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gladu [14]

Answer:

Images formed by a convex mirror are always ​virtual

Explanation:

A virtual image is always created by a convex mirror, and it is always situated behind the mirror. The picture is vertical and situated at the focus point when the item is far away from the mirror. As the thing approaches the mirror, the image follows suit and increases until it reaches the same height as the object.

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4 0
3 years ago
A 1.0-kg block moving to the right at speed 3.0 m/s collides with an identical block also moving to the right at a speed 1.0 m/s
____ [38]

Answer:

Speed of both blocks after collision is 2 m/s

Explanation:

It is given that,

Mass of both blocks, m₁ = m₂ = 1 kg

Velocity of first block, u₁ = 3 m/s

Velocity of other block, u₂ = 1 m/s

Since, both blocks stick after collision. So, it is a case of inelastic collision. The momentum remains conserved while the kinetic energy energy gets reduced after the collision. Let v is the common velocity of both blocks. Using the conservation of momentum as :

m_1u_1+m_2u_2=(m_1+m_2)v

v=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}

v=\dfrac{1\ kg\times 3\ m/s+1\ kg\times 1\ m/s}{2\ kg}

v = 2 m/s

Hence, their speed after collision is 2 m/s.

7 0
3 years ago
The brakes application to a car produce an acceleration of 6ms2 in the opposite direction to the motion .If the car takes 2 seco
Anna [14]

Answer:12 meter

Explanation:

acceleration(a)=6m/s^2

Time(t)=2 seconds

Distance =(a x t^2)/2

Distance =(6 x 2^2)/2

Distance=(6 x 2 x 2)/2

Distance=24/2

Distance =12

Distance is 12 meters

7 0
3 years ago
According to the three laws of planetary motion, planetary orbits are in the shape of a/an
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In short, Your Answer would be Option B

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8 0
3 years ago
Electricity questions
egoroff_w [7]

Answer:

What Electricity questions?

Explanation:

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3 years ago
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