Which is an unscientific question?

A.)Why does Newton's second law of motion show that F = ma?

B.)Why is Earth's acceleration due to gravity 9.8 m/s??

C.)What is the relationship between mass and energy in the equation E = mc27

D.)What is the product of the chemical reaction Na + Cl?

What is a costume plot? why is it important to a film or theater production?

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)