The DNA molecule has the shape of a double helix. The radius of each helix is about 10 angstroms (1 Å= 10-8 cm). Each helix rises about 34 A during each complete turn, and there are about 2.9 x 108 complete turns. Estimate the length (in Å) of each helix. (Round your decimal part to two decimal places.) x 1010 A Need Help? Which

For each kilogram of a​ person's weight, 2.5 milligrams of a drug is to be given. What dosage should be given to a child who weighs 98 ​pounds? Use the fact that 1 lb=0.45 kg.

Mr Fast runs 3.7km. Mr Slow runs 630m. How much further does Mr Fast run than Mr Slow?   Add together 4.5km, 120m and 50cm     I have four pieces of string. They are 3m, 45cm, and 25cm long. What total length in cm do I have?   A square field has a perimeter of 3.6 km. What is the length of one side in metres?  A mountain peak is 4.26 km above sea level. A climber is 540m below the summit. How high above sea level is the climber?

Please don't provide handwriting solution

A human capillary has a diameter of 9.05 µm. What is the cross-sectional area of a capillary in nm²?

The average dollar bill is 1.8x107 nm long and weighs 0.987 g.  The distance to the sun is 1.5x108 km.     If the sun has a mass of 2x1030 kg, what % of the mass of the sun would be made up of those dollar bills?

Calculate the mass of glucose (C6H₁2O6) that contains a billion (1.0 × 10°) oxygen atoms. H. Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits. X S

Suppose you are trying to find the volume of a box based on the given measurements for the length, width, and height of the box, where the height was measured in two parts.      length, l = 2.20 in      width, w = 3.71 in      height, h = 10.4 in + 1 in Calculate the height, ℎ, of the box, first keeping all digits, then rounding to the proper number of significant figures. unrounded h = ____in rounded h =____  in  Calculate the volume (V) of the box using V =l x w x h. Round to the proper number of significant figures.  v=_____in3

An electric current transports 650. µC of charge in 504. milliseconds. Calculate the size of the electric current. Be sure your answer has the correct unit symbol and 3 significant digits. x10

The first one