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
Ainat [17]
3 years ago
9

What is radioactivity?​

Physics
2 answers:
alekssr [168]3 years ago
7 0

Answer:

Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay, beta decay, and gamma decay, all of which involve emitting one or more particles.

the giving off of rays of energy or particles by the breaking apart of atoms of certain elements (as uranium) 2 : the rays or particles that are given off when atoms break apart.

The three most common types of radiation are alpha particles, beta particles, and gamma rays.

HOPE IT HELPS

BRAINLIEST PLEASR

Olin [163]3 years ago
6 0

Answer:

Radioactivity is the spontaneous disintegration of heavier unstable nuclei to form lighter stable nuclei with release of energy particles such as alpha particles, beta particles and gamma rays

Explanation:

.

You might be interested in
A Hall probe, consisting of a rectangular slab of current-carrying material, is calibrated by placing it in a known magnetic fie
Citrus2011 [14]

Answer:

(a) 0.345 T

(b) 0.389 T

Solution:

As per the question:

Hall emf, V_{Hall} = 20\ mV = 0.02\ V

Magnetic Field, B = 0.10 T

Hall emf, V'_{Hall} = 69\ mV = 0.069\ V

Now,

Drift velocity, v_{d} = \frac{V_{Hall}}{B}

v_{d} = \frac{0.02}{0.10} = 0.2\ m/s

Now, the expression for the electric field is given by:

E_{Hall} = Bv_{d}sin\theta                            (1)

And

E_{Hall} = V_{Hall}d

Thus eqn (1) becomes

V_{Hall}d = dBv_{d}sin\theta

where

d = distance

B = \frac{V_{Hall}}{v_{d}sin\theta}                      (2)

(a) When \theta = 90^{\circ}

B = \frac{0.069}{0.2\times sin90} = 0.345\ T

(b) When \theta = 60^{\circ}

B = \frac{0.069}{0.2\times sin60} = 0.398\ T

5 0
3 years ago
Help i am having a mental breakdown help! need this done...
guajiro [1.7K]
1. he traveled a total of 24 miles
2. peter is not moving between 10 and 30 minutes
4 0
2 years ago
How much refrigerant must a system contain
Scrat [10]
About 10% to 15% of system charge
7 0
3 years ago
Which of the following statements is true about conductors and insulators? Select all that apply.
ra1l [238]
Conductors have many free electrons
insulators have few free electrons
conductors are ideal for electrical wiring
6 0
3 years ago
Read 2 more answers
Explain what would happen to the air temperature at Riverdale School if the groundwater system were used. Use the terms stabilit
Sergio039 [100]

OK.

But first we need to know . . .

-- Where is Riverdale ?

-- What is the air temperature there right now ?

-- What kind of system is being used now ?

-- Where can we get a complete description of the groundwater system ?

5 0
3 years ago
Read 2 more answers
Other questions:
  • (a) A small object with mass 3.75 kg moves counterclockwise with constant speed 1.55 rad/s in a circle of radius 2.55 m centered
    13·1 answer
  • If a stone with an original velocity of zero is falling from a ledge and takes eight seconds that it the ground what is the fina
    8·1 answer
  • how fast in revolutions per minute must a centrifuge rotate in order to subject the contents of a test tube (30cm) from the axis
    10·1 answer
  • If the current density in a wire or radius R is given by J-k+5,0F wire? R, what is the current in the wire?
    7·1 answer
  • Please help on this one? :)
    7·1 answer
  • Use complete sentences to differentiate between acids and bases on the basis of their behavior when dissolved in water Give an e
    12·1 answer
  • A ball is thrown horizontally from a cliff and hits the ground 4 seconds later 40 meters from the base of the cliff. How high wa
    6·2 answers
  • Which atomic particle has no charge?<br> A. Electron<br> B. Neutron<br> C. Nucleus <br> D. Proton
    14·2 answers
  • Which is NOT a way to stay safe from static electricity?
    10·2 answers
  • At what point does the comet experience the strongest force of gravity?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!