From where Earth's 50% oxygen came? #shorts

50% of 200

Metal X forms wo oxides. Formula of the first oxide is XO_(2) . The first oxide contains 50% of oxygen. If the second oxide contains 60% of oxygen, the formula of the second oxide is

8 hours is 50% of 4 days.

Maximum height reached by a rocket fired with a speed equal to 50% of the escape velocity from earth's surface is:

In YDSE a = 2mm , D = 2m, lambda = 500 mm. Find distance of point on screen from central maxima where intensity becomes 50% of central maxima

A consulting firm rents car from three agencies such that 20% from agency x 30% from agency Y and 50% from z. 90% of the cars from X,80% of cars from Y and 95% of cars from Z are in good conditions (i) what is the probability that the firm will get a car in good condition? Also (ii) lf a car is in good what is probability that it has came from agency Y?

Maximum height reached by a rocket fired with a speed equal to "50%" of the escape velocity from earth's surface is given by R/x" .Calculate value of X? Where "R" is radius of earth.

If both the mass and radius of the earth, each decreases by 50%, the acceleration due to gravity would