Answer:
<h2>Lines of Force around an Electromagnet</h2>
Explanation:
<h3>The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field</h3>
Answer:
Explanation:
You can ignore how high the window actually is, unless the calculator falls further. You just want to use the formula v_f = v_i + at Let em know if that doesn't help and I can work you through it.
To check the distance use y = v_i*t + .5at^2. Would just plug in 0*1.8 + .5(-9.8)1.8^2 = -15.876, so it doesn't fall more than 20.7 m so indeed, you don't have to worry about that.
Again, let me know if you need further help.
Answer:
42.99°
Explanation:
= Kinetic friction force
= Pulling force at angle
= Weight of the box = 150 N
Kinetic friction force
Pulling force at angle
N = Pulling force
According to question
Applying Newton's second law in the vertical direction we get
The angle is 42.99°