What are ngc 2444 and ngc 2445, which nasa says are engaged in a cosmic tug-of-war with one apparently affecting the conditions of the other?.

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?