Which will be attracted to (or repelled by) a magnet ?
2 answers:
Answer:
A.) An Iron horseshoe
C.) A copper wire carrying current
F.) Another magnet
Explanation:
As we know that two magnets and two different magnetic materials will attract or repel each other
This is due to interaction of two materials due to which their magnetic field interacts and apply force on each other
Here we know that
magnetic field due to current carrying wire is given as
so here the magnetic fields will interact when a current carrying wire is placed near the magnet, or another magnet is placed near the magnet or any magnetic material like iron horse shoe is near it
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Complete Question
A ball having mass 2 kg is connected by a string of length 2 m to a pivot point and held in place in a vertical position. A constant wind force of magnitude 13.2 N blows from left to right. Pivot Pivot F F (a) (b) H m m L L If the mass is released from the vertical position, what maximum height above its initial position will it attain? Assume that the string does not break in the process. The acceleration of gravity is 9.8 m/s 2 . Answer in units of m.What will be the equilibrium height of the mass?
Answer:
Explanation:
From the question we are told that
Mass of ball
Length of string
Wind force
Generally the equation for is mathematically given as
Max angle =
Generally the equation for max Height is mathematically given as
Generally the equation for Equilibrium Height is mathematically given as
Answer:
1.29 m
Explanation:
Net force acting on the dog, will be given by
where m is mass and g is acceleration due to gravity
Since the work done by the net force against the ground equals the final potential energy
Height which the dog can jump,
H=0.6+0.44=1.04 m
Total height to reach=Height to jump+ half height of the dog
=1.04 m+0.5(0.5 m)=1.29 m
Answer:
I = 44.1[amp]
P = 9.92 [kw-hr]
Explanation:
We know that electrical power can be calculated by means of the following expression.
where:
P = power = 4.41 [kW] = 4410 [w]
V = 100 [V]
I = current [amp]
Now we have:
Now the power absorbed during this time is equal to the product of power by time.
t = time = 2.25 [hr]