1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tema [17]
3 years ago
9

At a distance of 10 cm from a presumably isotropic, radioactive source, a pair of students measure 55 cps (cps = counts per seco

nd). On average, how many counts per second do you expect at a distance of 22 cm?
Mathematics
1 answer:
professor190 [17]3 years ago
7 0

With an isotropic source, you can think on the radiation like a expanding sphere, where you will measure the same cps in any point while you keep the same distance to the source, ence the radius of the sphere remains constant. So, you know that the relation depends on the radius, also, when the sphere grows, the radiation in it expands in more surface, ence the density of particles will decrease, particularly, like \frac{1}{r^{2} }

then, in 15cm you will have 55cps = A/(10*10) where A is the "intensity of the source" whit this you can know the value of A = 55cps*100cm^{2}.

then, for 22cm, Y = 55cps*100/(22*22) = 20.66 cps.

You might be interested in
HELP NOW (+ brainlist)
schepotkina [342]

Answer:

2/6

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
A cereal manufacturer has a tolerance of 0.75 oz for a box of cereal that is supposed to weigh 20 oz. Determine the compound ine
Advocard [28]

I hope it helps you

3 0
3 years ago
1. Curtis was curious about the average height of the different types of plants in his flower and vegetable gardens, so he measu
Nadusha1986 [10]

Answer:

Step-by-step explanation:

hey i got the answer straight from my teach but ony a and c if you have the answer to b let me know  :  ( A) To determine the mean absolute deviation, first calculate the mean. Find the sum of the values: 8 plus 6 plus 9 plus 6 plus 14 plus 9 plus 5 plus 7 equals 64. Then divide the sum by the number of values: 64 divided by 8 equals 8. The mean is 8.

Next, find the distance of each value from the mean :

|8-8|=0 |6-8|=2 |9-8|=1 |6-8|=2 |14-8|=6 |9-8|=1 |5-8|=3 |7-8|=1

0 plus 2 plus 1 plus 2 plus 6 plus 1 plus 3 plus 1 equals 16. Then divide the sum of absolute deviations by the number of data values: 16 divided by 8 equals 2. The MAD of the data is 2.

 

C.  Since the MAD for the vegetable plant data is so much higher than the MAD for the flower data, this indicates that the heights of the vegetable plants vary more than the heights of the flowers    ALSO do you go to k12

7 0
3 years ago
Help please read directions
Studentka2010 [4]

Answer: - 1 3/4

Step-by-step explanation: You have to keep the first number and flip the second number, and you end with -1 3/4

PLEASE MARK BRAINLIEST

7 0
3 years ago
Read 2 more answers
ᕼEᒪᒪO I'ᗰ ᗯᕼᗩT Iᔕ 67195 ᙭ 2851852
Tasya [4]
Here you go you little troll <span>191630195140</span>
6 0
3 years ago
Other questions:
  • The number of hours Linda sleeps each night for two weeks is shown. Find the mean absolute deviation, rounding to the nearest wh
    11·1 answer
  • Write the standard form of the equation of the circle with endpoints of a diameter at the points (7,2) and (-9,5).
    11·1 answer
  • a group of friends went to lunch. the bill, before sales tax and tip, was $37.50. a sales tax of 8% was added. the group then ti
    10·2 answers
  • If 1 quart = 0.946 liters<br> How many quarts are in 7 liters??<br> Please answer!!
    10·1 answer
  • What % is 17 of 25 ?
    13·2 answers
  • In triangle ΔABC, ∠C is a right angle and CD is the height to AB . Find the angles in ΔCBD and ΔCAD if: Chapter Reference a m∠A
    10·1 answer
  • Single quadrant ordered pairs
    11·1 answer
  • The first 150 attendees at a
    15·1 answer
  • Plot all of the existing five features of the following rational function (some may not
    7·1 answer
  • PLS ANS THIS QUESTION PLS (WITH STEPS) IT WILL BE A GREAT HELP
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!