Answer:
Wrap it in cotton??? like alot of it?
battery
Explanation:
Electromagnets can be created by wrapping a wire around an iron nail and running current through the wire. The electric field in the wire coil creates a magnetic field around the nail. In some cases, the nail will remain magnetised even when removed from within the wire coil
Answer:
7.39 m/s
Explanation:
Applying
K.E = 1/2mv²..................... Equation 1
Where K.E = Kinetic Energy, m = mass of the ball, v = velocity of the ball.
Make v the subject of the equation
v = √(2K.E/m)................. Euqation 2
From the question,
Given: K.E = 30 J, m = 1.1kg
Substitute these values into equation 2
v = √(2×30/1.1)
v = √54.54
v = 7.39 m/s
Answer:
A.
Explanation:
I believe its A because lets say the ice is alone in a jar with nothing inside no water no other ice just be its self. You put that jar inside the freezer, for 18 hours. It's not going to be heaver nor lighter so the obvious answer would be A. because you gained nothing from that ice cube it will just have to stay the same. Sorry if I'm wrong
