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
Lorico [155]
3 years ago
7

What traction of the radioisotoperemains in the body after one day?​

Physics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

The fraction of radioisotope left after 1 day is (\frac{1}{2})^{\frac{1}{\tau}}, with the half-life expressed in days

Explanation:

The question is incomplete: however, we can still answer as follows.

The mass of a radioactive sample after a time t is given by the equation:

m(t)=m_0 (\frac{1}{2})^{\frac{t}{\tau}}

where:

m_0 is the mass of the radioactive sample at t = 0

\tau is the half-life of the sample

This means that the mass of the sample halves after one half-life.

We can rewrite the equation as

\frac{m(t)}{m_0}=(\frac{1}{2})^{\frac{t}{\tau}}

And the term on the left represents the fraction of the radioisotope left after a certain time t.

Therefore, after t = 1 days, the fraction of radioisotope left in the body is

\frac{m(1)}{m_0}=(\frac{1}{2})^{\frac{1}{\tau}}

where the half-life \tau must be expressed in days in order to match the units.

Learn more about radioactive decay:

brainly.com/question/4207569

brainly.com/question/1695370

#LearnwithBrainly

You might be interested in
Explain how the "natural frequency" of objects must be considered/analyzed in places like concert halls and airplanes.
hjlf
If you are talking about sound frequency you need to consider what area you are in because in a concert hall it is big and helps the sound spread but in an airplane it is the opposite. 
5 0
3 years ago
How does the kinetic energy of an object relate to its mass and velocity?
Setler [38]

The kinetic energy of an object is directly proportional to its mass, and to the square of its velocity.

5 0
3 years ago
A 50 kg child runs off a dock at 2.0 ms (horizontally) and lands in a waiting rowboat of mass 150 kg. At what speed does the row
Alex73 [517]

Answer:

The boat moves away from the dock at 0.5 m/s.

Explanation:

Hi there!

Since no external forces are acting on the system boy-boat at the moment at which the boy lands on the boat, the momentum of the system is conserved (i.e. it remains constant).

The momentum of the system is calculated as the sum of the momentum of the boy plus the momentum of the boat. Before the boy lands on the boat, the momentum of the system is given by the momentum of the boy.

momentum of the system before the boy lands on the boat:

momentum of the boy + momentum of the boat

m1 · v1 + m2 · v2 = momentum of the system

Where:

m1 and v1: mass and velocity of the boy.

m2 and v2: mass and velocity of the boat.

Then:

50 kg · 2.0 m/s + 150 kg · 0 m/s = momentum of the system

momentum of the system = 100 kg m/s

After the boy lands on the boat, the momentum of the system will be equal to the momentum of the boat moving with the boy on it:

momentum of the system = (m1 + m2) · v (where v is the velocity of the boat).

100 kg m/s = (50 kg + 150 kg) · v

100 kg m/s / 200 kg = v

v = 0.5 m/s

The boat moves away from the dock at 0.5 m/s.

5 0
4 years ago
Please help, no links please! I dont understand stand this question and im going to cry
Vaselesa [24]

Answer:

I'm pretty sure its helium

3 0
3 years ago
Read 2 more answers
The amplitude of a wave<br> determines the volume of a<br> sound.<br> True<br> O False
Vikki [24]
True the amplitude of a wave determines the volume of a sound
6 0
2 years ago
Other questions:
  • Spin cycles of washing machines remove water from clothes by producing a large radial acceleration at the rim of the cylindrical
    6·1 answer
  • Se tienen 5 cm3 de aire encerrado en una jeringa, siendo p = 760
    6·1 answer
  • In the theory of plate tectonics, various segments of Earths crust, called plates, move toward and away from each other. In one
    6·1 answer
  • A 5000 kg truck traveling at 60 m/s stops in 5 seconds. How much friction was between the truck's tires and the ground? ​
    13·1 answer
  • Does water take a long time to lose heat compared to metal? what is this called
    10·2 answers
  • A spring is hanging from the ceiling. Attaching a 500 g physics book to the spring causes it to stretch 20 cm in order to come t
    10·1 answer
  • Which ancient society developed the cuneiform writing system
    8·2 answers
  • As the solar system cooled and developed, larger bodies were pushed away from its center by gravity.
    8·2 answers
  • Why do fishermen like fishing during a full moon?
    11·1 answer
  • 50 POINTS!! BRAINLEST
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!