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
zzz [600]
3 years ago
15

The half-life of iodine-131 is 8.04 days. It’s decay constant equals

Physics
1 answer:
Svetllana [295]3 years ago
7 0

Answer:

Explanation:

we know that half life of an element is

T=0.693/λ

where λ is decay constant in order to find decay constant

λ=0.693/T

λ=0.693/8.04

λ=0.086

You might be interested in
Determina el trabajo realizado al desplazar un bloque 3 m sobre una superficie horizontal, si se desprecia la fricción y la fuer
bija089 [108]

Answer: El trabajo realizado al desplazar el bloque es: 75 N.m

Datos:

Fuerza= F= 25 N

Distancia= d= 3 m

Explicación:

El trabajo es el producto de la fuerza ejercida sobre un cuerpo con el desplazamiento producido por la fuerza. Para que exista trabajo, la dirección de la fuerza debe ser igual a la dirección del desplazamiento.

Trabajo= Fuerza x Desplazamiento

Reemplazando los datos:

T= 25 N * 3 m

T= 75 N.m

5 0
3 years ago
What kind of motion is the motion of the “flying bully”? How much and what is
lesantik [10]
<span>The flying bully is a move used in the Superhero Movie "Hancock", it is not a real motion in our universe. However, the direction would be towards the target object and the acceleration would be maximal.</span>
7 0
4 years ago
With some manipulation, the rydberg equation can be rewritten in the form e=constant×(1nf2−1ni2) which allows you to calculate t
Alinara [238K]
<span>The value of the constant needed to complete in joules to three significant figures is 2.18 x 10^-18 J.</span>
6 0
4 years ago
While online last week, you saw the following advertisement:
Karolina [17]
No scientific testing has been made to check for ion transfer, and the claims are purely empirical. Also, nine out of ten people is hardly a representative sample, and the people can claim whatever they want since "feeling" is subjective. This is most likely a pseudoscientific claim, made to sound legitimate to consumers. The best answer is choice D.
3 0
3 years ago
Read 2 more answers
What is the gpe of a 200 kg hot air ballon 21,000 m above the ground?
stiv31 [10]

gravitational Potential energy is given by

GPE = mgh

here we have

m = 200 kg

h = 21000 m

now we will have

GPE = 200(9.8)(21000)

GPE = 4.116 \times 10^7 J

so GPE of balloon will be 41160000 J above the given height from ground

8 0
3 years ago
Other questions:
  • An electric field of 260 000 n/c points due west at a certain spot. what are the magnitude and direction of the force that acts
    10·1 answer
  • Which imaging technique uses sound waves rather than electromagnetic waves ? a. MRI
    11·2 answers
  • In an overhead camshaft engine, the lobes make direct contact with the 
    15·2 answers
  • Suppose a piece of dust finds itself on a CD. If the spin rate of the CD is 500 rpm, and the piece of dust is 4.3 cm from the ce
    6·1 answer
  • What is the acceleration of a 25 kg mass pushed by a 10n force
    15·2 answers
  • A wire carrying a current of 10 A and 2 m in length is placed in a field of flux density 0.15 T. What’s the force on the wire if
    5·1 answer
  • What are shock waves? How are they produced?
    14·1 answer
  • What happens to the position of an object as an unbalanced force acts of it? Give an example
    13·2 answers
  • value of the refractive index of lens is 2.5 The curved surfaces are having The radius of curvature 10 cm and -12cm Out The foca
    15·2 answers
  • A flat coil is in a uniform magnetic field. What angle between the magnetic field and the plane of the coil produces the maximum
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!