PHYSICS HIGH SCHOOL

The nucleus of some isotopes will spontaneously undergo nuclear decay. These isotopes are said to be radioactive. what causes the nucleus of an isotope to be radioactive? Question 17 options: A. the net charge of the atom B. the attraction of protons to electrons C. an unstable ratio of protons and neutrons exposure to toxic chemicals D. too many electrons in its orbitals

Answers

Answer 1

Answer:

Answer:The correct answer is option C.

Explanation:

Nuclear decay is shown by those nucleus in which there is an imbalance between the number of neutrons and protons.

If the ratio of neutrons to proton is 3:2 than it is a stable nucleus.

If the ratio of neutrons to protons is not 3:2 than the nucleus will said to be unstable nucleus and it will undergo nuclear decay in order to gain stability.

Hence, the correct answer is option C.

Answer 2

Answer: If a atom is raidoactive or unbalanced, Instability of a atom's nucleus may result form excess of either neutrons orprotons. Which means the answer is letter C

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A compound microscope that has an eyepiece lens with a magnification of 10X and an objective lens with a magnification of 25X will have a total magnification of __________ times.
Explain the latency heat during a phase change of a substance. What does this look like on a heating curve?
Magnetic reversals have helped to supporta.the theory of Pangaea.c.sea-floor spreading.b.the age of the Earth.d.the theory of Gondwana.help please
You push on a box and are unable to move it. What force opposes your push

In a practical machine, the power output is _______ the power input. A. larger than
B. multiplied by
C. equal to
D. smaller than

Answers

The correct answer for the question that is being presented above is this one: "D. smaller than." In a practical machine, the power output is smaller than the power input. The power output is smaller than the power input as most of the energy usually has been converted to heat in the process.

Smaller than is the correct answer

A shorter electromagnetic wave is _____.more powerful
less powerful
hotter
colder

Answers

A shorter electromagnetic wave is hotter.
A shorter electromagnetic wave produce heat hotter than ultraviolet rays. Because it produces both gamma rays and ultraviolet rays that makes it hotter that the heat of the sun.

the answer is more powerful or A

Julie's psychologist helped her get over her fear of spiders. Which goal of psychology has the phycologist met ?

Answers

The four goals of psychology are: describe observed phenomena, explain them, predict what may occur as a result of them and control behaviour as a result. Julie’s psychologist has helped Julie control her behaviour - her fear response to spiders - so they have met the ‘control behaviour’ goal of psychology.

Answer:

C.control

Explanation:

Two waves are superposed. One wave has an amplitude of 3 cm, and the other has an amplitude of 4 cm. What is the resultant amplitude?

Answers

The sum (or difference) of two solutions of the wave equation is again a solution of the wave equation(superposition principle)

therefore the amplitude of resultant wave is 3+4= 7cm

Answer:

7 cm

Explanation:

When the waves are super-posed their amplitudes are added algebraically to get the resultant amplitude.

resultant amplitude = 3+4 = 7cm

An object travels 100 meters in 10 seconds time. What would be its Velocity (Speed) ?A 1000 meters/second
B 100 meters/second
C 1 meter/second
D 10 meters/second
Other ___________

Answers

Answer:

The answer to your question is the letter D) 10 m/s

Explanation:

Data

distance = 100 m

time = 10 s

velocity = ?

Definition. Velocity is the rate of change of distance with respect to time.

Formula

Velocity = distance / time

-Substitution

Velocity = 100 / 10

-Simplification

Velocity = 10 meters/second

compare the distance time graph for a fast-moving object with the distance time graph of a slower moving object

Answers

The slope of the distance/time graph is the speed of the moving object.
So the graph for a fast moving object will have a greater slope than the
graph for a slower moving object has.

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When celery is placed in a glass of pure water the solution inside its cells is _____ compared to the water.?