What is the current in a circuit with a 12.0 V battery and a 4.0 Ω resistor?

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?