Its easy to raise 1 kg mass object than 2 kg mass object on earth surface why??​

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.

Why is no-till farming more sustainable than many traditional methods of farming