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
Viktor [21]
3 years ago
11

An alpha particle is identical to a(n) _____.

Physics
2 answers:
Ber [7]3 years ago
7 0

Answer:

Helium nucleus

Explanation:

Alpha particles have two protons and two neutrons, wich is the configuration of an Helium Nucleus.

The atomic number of an element it is the number of protons that the element has in its nucleus, this number is uniqe to every element. Helium is the second element in the periodic table so Its atomic number is 2, This means it has two protons and the same amount of neutrons, wich makes alpha particles identical to a helium nucleus, not to a Helium atom, because a Helium atom has electrons and alpha particles don't have electrons.

Alexxx [7]3 years ago
3 0
Helium atom,  in other words, it consistis of a particle having four protons and two neutrons.
You might be interested in
Astronomy can best be described as a/an
stiks02 [169]
C.,  cause stars aren't located in earth's atmosphere or " the interior part of Earth" and daily horoscope is a more astrology thing, and Air Force pilot on a Naval carrier? Come on now.
7 0
3 years ago
Read 2 more answers
A wooden block is sitting on an inclined plane near the bottom. The student gave the block a flick and it moved up the inclined
sladkih [1.3K]

Answer:

The block didn't slide due to balancing of gravitational force with friction force

Explanation:

When the block was given a flick the force provided an acceleration to it and it moved up the inclined plane. when the block reached top it was expected that it would slide back but it didn't this happened because of the frictional force acting on the bottom the block which was balancing the gravitational force component along the plane and this prevented sliding back of the block.

static friction  was balancing mg*sin(theta)

fs = mg*sin(theta)

6 0
3 years ago
A suspended object A is attracted to a neutral wall. It's also attracted to a positively-charged object B. Which of the followin
olga2289 [7]

There are two particular cases, the first is when Object A is attracted to the neutral wall. This would indicate that the object is not neutral, as there is an attraction.

At the same time we know that Object A is attracted to an object B. And therefore, the load of A must be opposite to that of B. Remember that opposite charges attract each other. If the charge of object B is positive, then the charge of object A will be negative.

Option B is correct: It has a negative charge.

7 0
3 years ago
The magnitude of a force vector is 89.6 newtons (N). The x component of this vector is directed along the +x axis and has a magn
insens350 [35]

Answer:

(a) θ = 33.86°

(b) Ay = 49.92 N

Explanation:

You have that the magnitude of a vector is A = 89.6 N

The x component of such a vector is Ax = 74.4 N

(a) To find the angle between the vector and the x axis you use the following formula for the calculation of the x component of a vector:

A_x=Acos\theta       (1)

Ax: x component of vector A

A: magnitude of vector A

θ: angle between vector A and the x axis

You solve the equation (1) for θ, by using the inverse of cosine function:

\theta=cos^{-1}(\frac{A_x}{A})=cos{-1}(\frac{74.4N}{89.6N})\\\\\theta=33.86\°

the angle between the A vector and the x axis is 33.86°

(b) The y component of the vector is given by:

A_y=Asin\theta\\\\A_y=(89.6N)sin(33.86\°)=49.92N

the y comonent of the vecor is Ay = 49.92 N

3 0
3 years ago
A geologist is trying to determine what time period a layer of rock was formed.
vodka [1.7K]

Answer:

B

Explanation:

You always want to test as many samples as possible

8 0
3 years ago
Other questions:
  • what is the work done by gravity when a 2.0kg ball falls to the floor from the height of 1.50m? Is it positive or negative? Expl
    9·1 answer
  • Every 30,000 miles, __________. replace the brakes vacuum the interior service the automatic transmission (if your car has one)
    8·2 answers
  • The ability of atoms to attract electrons in chemical bonds is called
    9·1 answer
  • The temperature of a star is 6000K and its luminosity is 1000. Which type of star is it?
    15·2 answers
  • Two wires have the same resistance and radius. If the wires are made of copper and platinum with resistivities respectively of 1
    15·1 answer
  • Describe how glacial deposition occurs.
    8·1 answer
  • A glacier is eroding the land over which it passes. It moves at a rate of 2 m per day. Currently, the glacier is 80 km from a sm
    11·1 answer
  • Which state of matter has a define shape and definite volume
    5·2 answers
  • Are women sports underpaid compared with man? (Example: Women's USA soccer team is paid way less then Men's USA soccer team)
    5·2 answers
  • I need help plz and thank you. This is past due and I will mark brainiest
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!