Answer:
the answer should be 550 j because i just did it
Explanation:
all you have to do is add all of them up and get your answer
Answer:
Electromagnetism has important scientific and technological applications. It is used in many electrical appliances to generate desired magnetic fields. It is even used in a electric generator to produce magnetic fields for electromagnetic induction to occur. It has many more technological applications including MRI scanning (magnetic resonance imaging) and electric bells.
Explanation:
Electromagnets are widely used as components of other electrical devices, such as motors, generators, electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment.
Answer:
a = 0.50 m/s²
v = 6.0 m/s
Explanation:
Step 1: Given data
- Initial velocity (u): 0 m/s (rest)
- Displacement of the marble (s): 36 m
Step 2: Calculate the acceleration
We will use the following suvat equation.
s = u × t + 1/2 × a × t²
s = 0 × 12.0 s + 1/2 × a × (12.0 s)²
36 m = a × 72.0 s²
a = 0.50 m/s²
Step 3: Calculate the final velocity
We will use the following suvat equation.
v = u + a × t
v = 0 + 0.50 m/s² × 12.0 s
v = 6.0 m/s
Answer:
The excess charge is 
Explanation:
From the question we are told that
The diameter is 
The potential of the surface is 
The radius of the sphere is
substituting values
The potential on the surface is mathematically represented as
Where k is coulomb's constant with value 
given from the question that there is no other charge the Q is the excess charge
Thus
substituting values
