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melomori [17]
3 years ago
15

Joan makes the device shown in her science class. What would happen to the magnetic field if she connects the battery in the opp

osite direction?
Physics
2 answers:
Maru [420]3 years ago
6 0

The field reverses its poles, meaning that the flow of negative and positive charges will cause an overall switch in the magnetic poles of the field.

brilliants [131]3 years ago
5 0

Answer:

Explanation:

When the electric current flows through a conductor a magnetic field is produced near the conductor.

When the direction of current is reversed the direction of magnetic field is also reversed.

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4 years ago
The third floor of a house is 8m above street level. How much work is needed to move a 136kg refrigerator to the third floor?
jonny [76]

m = Mass of the refrigerator to be moved to third floor = 136 kg

g = Acceleration due to gravity by earth on the refrigerator being moved = 9.8 m/s²

h = Height to which the refrigerator is moved  = 8 m

W = Work done in lifting the object

Work done in lifting the object is same as the gravitational potential energy gained by the refrigerator. hence

Work done = Gravitation potential energy of refrigerator

W = m g h

inserting the values

W = (136) (9.8) (8)

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8 0
3 years ago
A ball is thrown horizontally from the top of a building 100m high. The ball strikes the ground at a point 120 m horizontally aw
astraxan [27]

26.54 m/s  is the magnitude of its velocity just before it strikes the ground

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time it takes to reach the ground,

[t=\sqrt2h/g],[=\sqrt2*100/9.8=4.51s]

x= 120m

t= 4.52

v= x/t

v= 120/4.52

v= 26.54 m/s

The "speed at which an object changes its location" can be expressed using a vector number called velocity. Consider a person who moves swiftly while taking two steps forward and two steps back while remaining in one location. Velocity is a vector quantity. Therefore, velocity is cognizant of direction. The direction must be taken into account when determining an object's velocity. A speed of 55 mph is not enough information. The direction must be used to appropriately depict the item's velocity. Simply said, the direction of the velocity vector indicates the direction of motion of an object.

To know more about  velocity visit : brainly.com/question/16379705

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1 year ago
What would happen to a loop in a metal tube when it is heated
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svlad2 [7]
The awnser would be True. Hope I helped!
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