How will a current change if the resistance of a circuit remains constant while the voltage across the circuit decreases to half its original value?

1. the current will drop to half of its original value.
2. it is impossible to predict.
3. the current will triple.
4. the current will remain the same.
5. the current will double.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

Which of the following best describes the shape of earth's orbit? a.ellipticalb.circularc.spirald.figure eight