95pd4qqqq9 95pd4qqqq9
  • 23-02-2024
  • Chemistry
contestada

A 5.18*10^5 bq sample of Fe-55 decays to 3.5*10^-6 Ci in 4 hours. what is the half life of Fe-55?

Respuesta :

Otras preguntas

write the number 68,127,000,000,000,000 in scientific notation. Which of the two representations of this number do you perfer
Two iron weights, one twice the mass of the other, are dropped from the top of a building. Compared with the lighter weight, the twice as heavy weight will hit
Which is equivalent to 80^1/4?
What is the converse of the statement "If Bob does his homework, then George gets candy"? *
how many phone numbers are possible for the form ABC-XXXX? A is restricted to numbers 3-9 B,C and x can be any digit 1-9.
The surface temperature on Venus may approach 751 K. What is this temperature in degrees celcius
Help please! Appreciate it much.
Which of the following can help provide context for the characters in a story? Select all that apply.
A 2000kg test car, traveling 60 ms hits a brick wall. Using motion pictures, the time involved is determined to be 0.050 s. What impulse does the car impart to
Chris buys p pairs of parts and 4 more shirts than pairs of pants.Shirts cost $18 each and pair of pants cost $25 each.What does each term in the expression 25p