PLZZZZ HELPPPPPP MEEEEEE!!!!!! ASAP!!! ILL GIVE 20 POINTS AND BRAINLIEST!!!
:'(
I am soooooooooooo desperate.
Answers
Answer:
the correct one is B ₊₁e
Explanation:
In the radioactive emission process there are three fundamental types, enision of alpha particles, emission of beta rays and emission of high energy photons.
In beta particle emission processes, a neutron decomposes, emitting an electron and an antineutrino, so the mass number of the nucleus does not change, but the atomic number increases by one unit.
Another possibility is the emission of a positron (positive charge) plus a neutrino, in this case the atomic mass remains constant and the atomic number decreases by one unit.
The second beta emission process if it describes the situation presented, when reviewing the answers the correct one is B
Related Questions
35) Kinetic energy in flowing water drives
A watermill. B. windmill
to generate electricity.
C. turbines. D. generator
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Answer:
C) Turbines
Explanation:
C. because as the water flows, its kinetic energy is used to turn a turbine.
If the radius increased between the two objects what would happen to gravitational force between them?
Answers
Answer:
The Gravitational Force would decrease
Explanation:
The equation Gm1m2/r^2 is the equation for gravitational force. If you look, as we increase the radius, the overall value will decrease as we move further apart.
HELP PLS
Explain what happens when two light waves travelling from the same direction of displacement meet.
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Answer:
When two light waves traveling from opposite directions meet they experience wave interference. This happens when they are traveling along the same medium!
Explanation:
Hope it help! (Please mark brainliest!)
How does magnetic compass help to identify directions
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Answer:
By the help of magnetic field of the earth
Explanation:
Compasses, also known as magnetic compass, help us primarily in navigating and determine position on the globe. The planet Earth has its own magnetosphere or magnetic field that is close with that of a magnetic poles, and this is how compass works. The compass needle aims north and south as it happens to coincide with the Magnetosphere or magnetic field.
Determine both the mass and the charge of a block of material consisting of 3 x 10^27 protons, 3 x 10^37 neutrons, and 3.1 x 10^27 electrons.
Answers
Answer:
The mass of the block of material is 3 x 10³⁷ g/mol
The charge of the material is 4.8 x 10⁸ C
Explanation:
Given;
number of protons of the material, P = 3 x 10²⁷
number of neutrons in the material, N = 3 x 10³⁷
number of electrons in the material, E = 3 x 10²⁷
The mass of the block of material is calculated as follows;
M = P + N
M = 3 x 10²⁷ + 3 x 10³⁷
M = 3 x 10³⁷ g/mol
The charge of the material is calculated as follows;
charge of 1 electron = 1.6 x 10⁻¹⁹ C
charge of 3 x 10²⁷ electrons = 3 x 10²⁷ electrons x 1.6 x 10⁻¹⁹ C
= 4.8 x 10⁸ C
Which statement best describes the difference between atoms and molecules
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Answer:
Atom
It is a smallest component of element.
may or maynot have possessed.
Molecule
it is a group of two or more Atoms.
alway posses the properties of matter.
A student analyzes the data and concludes that one bird flies at a speed of 20 meters per second during a portion of its migration. Select the two types of data that the student needed to form this conclusion
Answers
Answer:
The answer is "The location of the bird and time interval between pieces of information".
Explanation:
Please find the complete question in the attached file.
The Radar is the instrument used to gather data from birds by researchers. This would be the primary tool to study the flight behavior of migrating birds with the impact of environmental influences including the ecology of migratory movements, from the broad population group for both the distribution of land areas and geomorphology as well as meteorological systems to the shift in the behavior of airlines of particular birds, especially when responding to lead routes.
How do positive and negative acceleration differ?
Positive acceleration represents an object speeding up; negative acceleration represents an object slowing down.
Positive acceleration moves north or east; negative acceleration moves south or west.
Positive acceleration occurs when there is more velocity than speed; negative acceleration occurs when there is less velocity than speed.
Positive acceleration occurs when an object changes its speed but not its direction; negative acceleration occurs when an object changes both its speed and direction.
Answers
Answer:
Positive acceleration moves north and east but negative acceleration moves south and west
4
Students are using an air rocket to investigate the relationship
between force and an object's motion.
Students pump air into the rocket, then release the rocket, and the
compressed air pushes the rocket upward.
A. The length of the hose attached to the pump
B. The distance traveled by the rocket
C. The amount of air pumped into the rocket
D. The height of the rocket from fins to cone
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1. Oh no! Your car breaks down on the highway, and you have to push the car to the side of the road. If your car is 400 kg and you push
with a force of 200 N, what is the car's acceleration?
O 2 m/s2
O 8.0 x 104 m/s2
O 0.5 m/s2
Oom/?
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If the car goes exits a freeway and goes from 65
mph to 35 mph is it accelerating?
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Answer:
No, the car is decelerating
Explanation:
No the car is decelerating if it exits a freeway and goes from 65
mph to 35 mph since the change in velocity is negative.
change in velocity = final - initial
change in velocity = 35 - 65
change in velocity = -30mph
Since the change in velocity is negative, hence the car is decelerating. Deceleration is a negative acceleration
How do food molecules compare to each other?
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Please help!!!
The Ice cube melting on the conducting plate
What is the main type of thermal energy...
. Conduction
.Convection
. Radiation
Answers
Answer:
conduction, convection, and radiation
Explanation:
when you hold an ice cube, heat is transferred from your warm hand to the cold ice and melts it. Your hand feels cold because it is losing heat energy. There are three ways that heat can be transferred: by conduction, convection, and radiation. heat through solids.
Waldo needs to know how much force to apply in order to move a 4000-kg object at 2 m/S2. Which law should he refer to
Answers
Answer:
Newton's second law of motion?
2. A hanging wind-chime on a calm day would have kinetic or potential energy?
kinetic
potential
Answers
Answer:
it would have potential energy
Two men push a bobsled with a total force of 250 Newtons. The
combined mass of the men and the bobsled is 230 kilograms.
Ignoring friction, what is the acceleration of the bobsled??(
F = ma)
Answers
Answer:
[tex]0.78m \: per {s}^{2} [/tex]
A jet plane travels east for
661.8 meters in 6 seconds.
What is the velocity of the plane?
velocity = distance = time
Answers
3,970.8
Explanation:
v=661.8×6
3,970.8
Multiple choice: Sunspots appear dark because
(a) they are patches of the photosphere that occasionally burn up, creating soot;
(b) the changing magnetic polarity of the Sun causes gas in the sunspot to cool down substantially;
(c) they are regions in which strong magnetic fields make it difficult for fresh supplies of hot, ionized gas to reach the photosphere;
(d) they are much hotter than the surrounding area, so their emission peaks at ultraviolet wavelengths, which our eyes cannot see; or
(e) they are holes in the photosphere through which the cooler interior of the Sun is visible.
Answers
Answer: C. They are regions in which strong magnetic fields make it difficult for fresh supplies of hot, ionized gas to reach the photosphere
Explanation:
Sunspots appear dark because they are regions in which strong magnetic fields make it difficult for fresh supplies of hot, ionized gas to reach the photosphere.
Sunspots are typically cooler than their surroundings. For example, the temperature of a large sunspot can be about 4,000 Kelvin which is lower than the temperature of the photosphere around it which is about 5,800 Kelvin.
After the collision, car 1 has a final velocity of 6m/s south. What is the final velocity of car2?
a) 35m/s north
b) 35m/s south
c) 81 m/s north
d) 81 m/s south
Answers
Why does steam at 100°c give severe burn than water at 100 c?
Answers
Explanation:
Steam will produce more severe burns than boiling of water because steam has more heat energy than water due to its latent heat of vaporisation and additionally latent heat of condensation. Steam and boiling water can exist at varing temperature but it is only correct to assume here that both are at same temperature.
An object is travelling 15 m/s. How long does it take for it to go 75 m?
Answers
Answer:
5 seconds
Explanation:
If an electron moves in a circle of radius 21 cm perpendicular to a B field of 0.4 T, what are the speed of the electron and the frequency of motion?
Answers
Answer:
a)
[tex]v = 4.048 *10^6[/tex] m/s
b)
Angular frequency = [tex]1.92 * 10^7[/tex]
Explanation:
As we know
[tex]v = \frac{qBr}{m}[/tex]
q is the charge on the electron = [tex]3.2 * 10^{-19}[/tex] C
B is the magnetic field in Tesla = [tex]0.4[/tex] T
r is the radius of the circle = [tex]0.21[/tex] m
mass of the electrons = [tex]6.64 * 10^{-27}[/tex] Kg
a)
Substituting the given values in above equation, we get -
[tex]v = \frac{3.2 * 10^{-19}*0.4*0.21}{6.64 * 10^{-27}} \\v = 4.048 *10^6[/tex]m/s
b)
Angular frequency =
[tex]\frac{4.048 * 10^6 }{0.21} \\1.92 * 10^7[/tex]
GIVING BRAINLIEST PLEASE HELP ME!!!
-If you answer correctly ill give you brainliest which will give you 25 points-
Answers
2. c
3. A. Those are the answers
Answer:
Explanation:
1. Conduction
2. Convection
3. Radiation
please help me answer
Answers
D. 55 Kg mass moving at 1 m/s, is the correct answer.
The more mass the object has, the greater inertia is. It doesn't matter how fast the object is going because inertia is depended on mass.
El diámetro del embolo de una jeringa para inyección mide 1.5 cm. Una enfermera ejerce una fuerza de 2N cuando inyecta a su paciente. Calcule la presión que ejerce el fluido inyectado sobre las venas.
Answers
Answer:
Presión = 11111,11 N/m
Explanation:
Dados los siguientes datos;
Diámetro = 1,5 cm a metros = 1,5 / 100 = 0,015 m
Fuerza = 2N
Para encontrar la presión;
En primer lugar, determinaríamos el área del círculo usando la fórmula;
Área del círculo = πr²
Radio = diámetro/2 = 0.015/2 = 0.0075 m
Área de la jeringa = 3.142 * 0.0075²
Área de la jeringa = 3.142 * 0.00005625
Área de la jeringa = 0.00018 metros
Ahora, podemos encontrar la presión usando la fórmula;
Presión = fuerza/área
Presión = 2/0.00018
Presión = 11111,11 N/m
A driver starts his parked car and within 4.6 seconds, reaches a velocity of 15 m/s. What is his acceleration?
Answers
All of the numbers in every row and column add up to 15! (Also, 6 is the only number not represented out of numbers 1 through 9.)
And to the representation to his problem you can clear,y see that 4.6 seconds is actully the the time of the whole parking. so if you just do a simple equation... 4.6x10p/2x15/10x2 would get your answer to 6
Two train cars with the same mass (30,000 kg) are traveling in the same direction when they collide.
Train Car A has a velocity of 10 m/s and Train Car B has a velocity of 5 m/s. What is their total
momentum after the collision? Make sure to show all your work and include proper units.
Answers
Answer:
25
Explanation:
I just did this
Expresa en notación científica los siguientes números en notación científica estándar: a) 9367421= b) 7241= c) 0.0005519= d) 0.02=
Answers
Answer:
so yeah it is Respuesta
A 12 kg rock that is moving at 5.1 m/s in the +x direction experiences a net impulse of 98 N-m in the same direction. What is its final momentum?
Answers
The final momentum will be 159.2 kg m/sec. The change in the momentum is the difference of the final and the initial momentum.
What is momentum?The momentum is defined as the product of mass and the velocity of the body. It is denoted by the letter P. It occurs due to the applied force. Its unit is Kg m/s.
The given data in the problem is;
The mass of rock is,12 kg
The velocity is,v= 5.1 m/s
The momentum is P
The momentum is found as;
[tex]\rm P_i = mv \\\\ \rm P_i = 12 \times 5.1 \\\\ P_i=61.2 \ kg m/sec[/tex]
From Newtons second law, impulse is equal to the change in the momentum.
[tex]\rm I =\triangle P \\\\ \rm I =P_f-P_i \\\\ \rm 98 = P_f-61.2 \\\\ P_f =159.2 \ Kg m/sec[/tex]
Hence, the final momentum will be 159.2 kg m/sec
To learn more about the momentum, refer to the link;
https://brainly.com/question/4956182
#SPJ2
When you use a microwave, what is the main way that heat is transferred?
1. radiation
2. convection
3.conduction
Answers
Answer:
the correct answer is 1. radiation