To defeat decepticons, just kidding, it is a transformer<span> that increases voltage from primary to secondary.</span>
Well it depends it has to be some kind of metal material if not then it will not pick it up Hope this helps:)
Recall that the force on an object is related to the mass and acceleration of that object by the formula F = ma, where m is the mass of the object and a is its acceleration. What happens when we double F? Well, you might remember from algebra that, in order to keep our equality true, if we double one side, we must also double the other, so our equation becomes 2F = 2ma. Now, this means one of two things: either the mass has doubled, or the acceleration has doubled.
We can tell right away that it'd be absurd if a race car doubled in mass every time it hit the gas, so the quantity doubling must be the <em>acceleration. </em>If we call the car's current velocity v1, we'll be adding the doubled acceleration to get its new velocity. Mathematically, v = v1 + 2a.
We can now conclude that, by doubling the force:
- The acceleration of the car will double,
- The mass of the car will stay the same, and
- The velocity of the car will increase by double the original acceleration
Answer:
The strength of the magnetic field is 3.73 T.
Explanation:
We have,
Current in the wire is 3 A
Length of wire, L = 4.2 cm = 0.042 m
A wire crosses perpendicularly between the two poles of a strong horseshoe magnet.
When the current is turned on, the wire experiences 0.47 N of force, F = 0.47 N
It is required to find the strength of the magnetic field. The magnetic force acting on the wire is given by :
B is strength of the magnetic field
So, the strength of the magnetic field is 3.73 T.
A smooth and slick surface?:)