hello:) for part FG & HJ , there’s no acceleration so does it mean that the car is travelling in the same direction and same speed since it’s in a car race? or is it at rest?

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

The solid that is formed and usually sinks to the bottom of a solution is the