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erastova [34]
3 years ago
10

A 0.200 m wire is moved parallel to a 0.500 T

Physics
1 answer:
goldenfox [79]3 years ago
8 0

Answer:

The required emf moved across the wire is zero

Explanation:

For a moving charge particle, the magnetic force can be determined by using the formula;

\varepsilon = Bvlsin \theta

since the wire moves in parallel, the angle \theta between magnetic field and velocity = 0°

B = 0.500 T

v = 1.50 m/s

l = 0.200 m

∴

\varepsilon = (0.500  \ T )(1.50 \ m/s) \times (0.200 \ m)\times sin (0)

\varepsilon = 0.15\times sin (0)

\varepsilon = 0

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Through what vertical height is a 50 N object moved if 250 J of work is done lifting it against the gravitational field of Earth
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5m

Explanation:

Given parameters:

Weight of object = 50N

Work done in lifting object = 250J

Unknown:

Vertical height = ?

Solution:

The work done on an object is the force applied to lift a body in a specific direction.

   Work done = force x distance

  Weight is a force in the presence of gravity;

  Work done = weight x height of lifting

Height of lifting = \frac{work done }{weight}

 Height of lifting = \frac{250}{50} = 5m

The vertical height through which the object was lifted is 5m

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3 years ago
20 pts.
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The cup is acted upon by an unbalanced force which is the cars acceleration, but before it was an object at rest that stayed at rest. This jet propels their body forward.
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Electronic flash units for camera contain a capacitor for storing the energy used to produce the flash. In one such unit, the fl
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Answer:

420J

Explanation:

Power is the time rate of change in energy. Power is the ratio of energy to time. The S.I unit of power is in watts.

Given that the flash lasts for 1/675 s, power output is 2.7 * 10⁵ W. Hence:

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Since the conversion of electric energy to light is 95% efficient, hence the energy stored as electrical energy is:

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Which one of Newton's Laws fits this statement:
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The drawing shows 6 point charges arranged in a rectangle. The value of q is 2.83 uC and the distance d is 0.123 m. Find the tot
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the total electric potential at location P, which is at the center of the rectangle is 0V.

The charges placed at the corner of the rectangle are same in magnitude but different in charge. hence the total electric potential will be same in  magnitude but different in charge and will be cancelled. Similarly, all the total electric potential will be cancelled and resultant will be zero.

<h3>What is total electric potential?</h3>
  • The amount of labor required to convey a unit of electric charge from a reference point to a given place in an electric field is known as the electric potential (also known as the electric field potential, potential drop, or the electrostatic potential).
  • More specifically, it is the energy per unit charge for a test charge that is negligibly disruptive to the field under discussion. In order to prevent the test charge from gaining kinetic energy or radiating, the travel across the field is also meant to occur with very little acceleration.
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