an airplaine has an altitude of 20,000 feet. it climbs another 5,000 feet to avoid a storm. What integer expresses the position of the airplane compared to ground level?
-4 - (-8) = I got 4 is this correct -2 - (-6) = Again I got 4 is this also correct
suppose an elephant and a feather fall from a skyscraper. in the presence of air resistance, the elephant would fall faster because...list all that apply. a) acceleration of gravity is greatest for the elephant b) elephant experiences a smaller air resis. force c) the greater ...
Why is it necessary to collimate the light source before using the prism to disperse the light? A. If white light enters the prism with different angles, some of the blue light will exit the prism with the same angle as the orange light. B. If white light enters the prism with...
A spiiner was spun 16 times. The results are shown in the table below. yellow = 5 white = 4 red = 0 blue = 2 green = 2 orange = 3 whch colors' experimental probability matches its theoretical probability a. yellow, green and orange b. white, red and orange c. yellow, blue ...
A string is fit snugly around the circumference of a spherical hot air balloon. More hot air is added (probably by a prominent scientists lecture) and it now takes an additional 12.4 feet of string to fit around the circumference. What is the increase in diameter?
Math. Have answer, please show work
In a tracer method the potassium isotope 42K is used for labelling. The half life of 42K is 12.5 hours. If No is original number of atoms, how many hours will it take until only (1/1024) No Atoms remain? The answer is 125 hours but I do not know how to get this. Please help!
math. solve for t
im getting 104 hours but the correct answer is 125 hours?
math. solve for t
1/1024=42*0.5^(t/12.5) Solve for t. Please show work. Much appreciated!