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Fynjy0 [20]
3 years ago
5

How many nuclei decay in one half life?

Physics
2 answers:
Archy [21]3 years ago
4 0

Answer:

50%

Explanation:

galben [10]3 years ago
4 0

Answer:

Nuclear decay is an example of a purely statistical process. A more precise definition of half-life is that each nucleus has a 50% chance of living for a time equal to one half-life t1/2. Thus, if N is reasonably large, half of the original nuclei decay in a time of one half-life.

Explanation:

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An electron, moving south, enters a uniform magnetic field. Because of this uniform magnetic field, the electron curves upward.
Flura [38]

Answer:

Towards the west

Explanation:

Magnetic force is the interaction between a moving charged particle and a magnetic field.

Magnetic force is given as

F = q (V × B)

Where F is the magnetic force

q is the charge

V is the velocity

B is the magnetic field

V×B means the cross product of the velocity and the magnetic field

NOTE:

i×i=j×j×k×k=0

i×j=k.  j×i=-k

j×k=i.  k×j=-i

k×i=j.  i×k=-j

So, if the electron is moving southward, then, it implies that the velocity of it motion is southward, so the electron is in the positive z-direction

Also, the electron is curved upward due to the magnetic field, this implies that the force field is directed up in the positive y direction.

Then,

V = V•k

F = F•j

Then, apply the theorem

F •j = q ( V•k × B•x)

Let x be the unknown

From vector k×i =j.

This shows that x = i

Then, the magnetic field point in the direction of positive x axis, which is towards the west

You can as well use the Fleming right hand rule

The thumb represent force

The index finger represent velocity

The middle finger represent field

3 0
3 years ago
Which part of the scientific process includes identifying problems? A.(Collecting data) B.(Doing experiments) C.(Making observat
Ksivusya [100]
Making observations.
5 0
3 years ago
Read 2 more answers
Four distinguishable particles move freely in a room divided into octants (there are no actual partitions). Let the basic states
mafiozo [28]

Answer:

Explanation:

Since the door that leads to the room is opened, this gives room for particles to move into the next identical room and divided into octants. Now the amount of space that can be occupied becomes double, the number of basic states has increased by 404916

8 0
3 years ago
Q: Riri wants to bake a cake. She adds flour, sugar, egg, baking soda, and yeast into a bowl and mixed them together. After all
babunello [35]

Answer:

I don't know what you mean about which changes occurred in this process but if its why the dough starts rising then its caused by the carbon dioxide in baking soda and yeast which is a fungus

8 0
3 years ago
Read 2 more answers
A 5.1kg iron skillet is heated to 373K from an initial temperature of 295K. How much thermal energy was transferred?
posledela

Answer:

the thermal energy transferred is 183,226.68 J

Explanation:

Given;

mass of iron skillet, m = 5.1 kg

initial temperature, t₁ = 295 K

final temperature, t₂ = 373 K

The thermal energy transferred is calculated as;

Q = mcΔt

where;

Δt is change in temperature, = t₂ - t₁

c is specific heat capacity of iron = 460.6 J/kg.K

Q = 5.1 x 460.6 x (373 - 295)

Q = 183,226.68 J

Therefore, the thermal energy transferred is 183,226.68 J

6 0
3 years ago
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