Answer:
933.804423995 m/s²
Explanation:
= Charge on particle 1 = 67 µC
= Charge on particle 2 = -25 µC
r = Distance between the particles = 47 cm
k = Coulomb constant = 
m = Mass of particle = 73 g
Electric force is given by
The magnitude of force is 68.1677229516 N
Acceleration is given by
The acceleration is 933.804423995 m/s²
Answer:
I believe it would be Direction B
Explanation:
After passing A, gravity would pull the ball downwards
Answer:
168 seconds (2 min 48 s)
Explanation:
Find the heat absorbed by the water.
q = mCΔT
q = (1 kg) (4200 J/kg/K) (70°C − 40°C)
q = 126,000 J
Power is energy per time.
P = q / t
750 W = 126,000 J / t
t = 168 s
It takes 168 seconds (2 min 48 s).
Answer:
You can create an electromagnet by wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current."
Explanation:
Electromagnets are made by wrapping an insulated wire around a metal with ferromagnetic properties (example is iron), to form a loop, and then applying a current through the wire. Electromagnets can generate magnetism with a strong force field, and unlike normal magnets, their strength can be varied by varying the amount of current flowing through the coil. Their main disadvantage, which is also their most utilized property is that their magnetism is lost once the current flowing through the wire is cut-off.
