Answer:

Explanation:
Let say the empty wagon has mass "M"
now by newton's II Law we will have

now it is given that empty wagon is pulled with acceleration 1.4 m/s/s
now we will have

now a child of mass three times the mass of wagon is sitting on the empty wagon
so here we have


so we have

Answer:
40N in either direction is the answer
Well, the reason behind this is because water depth (I assume you're talking about water/liquid) increases the pressure because of the weight and volume of the water above. I hope this helps! ~Mia
Fusion & Fission are both processes that involve D. Strong Nuclear Fundamental forces
"D". is the answer
Answer:
502000W/m²
Heat flux = 800×50.2/20 =
502000W/m²
Explanation: