Can someone plz help me :(

Answer:

Nuclear Fission

Explanation:

Nuclear power plants release energy by nuclear fission.

Answer:  50 nm

Explanation:  Two steps:

1.  Divide 3.25/6.5 = 0.5

2.  Divide 10^8/10^6 = 10^2

nm^2/nm = nm

Combine:  0.5x10^2 nm

or 50 nm

Answer:

ammonia molecules. Similar factors may be derived for any pair of substances in any chemical equation. Example 4.8. Moles of Reactant Required in a Reaction.

Explanation:

Answer:

3 and 4

Explanation:

After Rutherford did the alpha particle scattering experiment, he realised that most of the atom must be empty space, and the positive charge needed to be concentrated in the middle of the atom (in the nucleus).

This was because most of the alpha particles went straight through the gold sheet but some were deflected to the side or straight back.

This led to the nuclear model, where Rutherford concluded that most of the mass and all of the positive charge was concentrated in the middle of the atom in the nucleus, and the electrons existed in a sort of negatively charged cloud around the nucleus.

hope this makes sense!

#1

[tex]\\ \sf\longmapsto {}^{88}_{38}Sr^{2+}[/tex]

#2

[tex]\\ \sf\longmapsto {}^{51}_{23}V^{3+}[/tex]

#3

[tex]\\ \sf\longmapsto {}^{55}_{26}Fe^{3+}[/tex]

#4

[tex]\\ \sf\longmapsto {}^{112}_{48}[/tex]

#5

[tex]\\ \sf\longmapsto {}^{210}_{82}Pb^{2+}[/tex]

Answer:

118.05 grams

Explanation:

mL = cm³

Density = mass/volume

Let x = mass

Our equation will look like this: x/15 = 7.87

Multiply both sides by 15 to isolate the variable, x

15(x/15) = 15(7.87)

15x/15 = 118.05

x = 118.05

Answer:2. Nuclear fusion occurs in the core of protostar.

Explanation: The evolution of a star helps us the understand Nuclear fission and its contribution into the stellar life cycle.

The life cycle of a star begins in the nebula where it is merely composed of matter, gas and dust.  As time progresses, gravitational force causes the hydrogen gas in the nebula to start to spin, With increased spinning, the constituents are heated up and forms a Protostar.

Now because of the unstable  Protostar in the core of the cloud is burning at a temperature of about 15,000,000 degrees Fahrenheit, Nuclear fusion occurs.  This converts the hydrogen gas to helium in the core causing the protostar to become stable and glow like a main sequence star.

Also the inner shell contracts and  becomes unstable as the helium replaces hydrogen while the outer shell of the star still hydrogen dense  expands outwards and cools forming a giant star.

See related answer here: https://brainly.com/question/1435566

Answer:

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement. ... For example, 50 km/hr (31 mph) describes the speed at which a car is traveling along a road, while 50 km/hr west describes the velocity at which it is traveling.

Answer:

Volume

Explanation:

Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or 3D shape occupies or contains.[1] Volume is often quantified numerically using the SI derived unit, the cubic metre. The volume of a container is generally understood to be the capacity of the container; i.e., the amount of fluid (gas or liquid) that the container could hold, rather than the amount of space the container itself displaces. Three dimensional mathematical shapes are also assigned volumes. Volumes of some simple shapes, such as regular, straight-edged, and circular shapes can be easily calculated using arithmetic formulas. Volumes of complicated shapes can be calculated with integral calculus if a formula exists for the shape's boundary. One-dimensional figures (such as lines) and two-dimensional shapes (such as squares) are assigned zero volume in the three-dimensional space.

The volume of a solid (whether regularly or irregularly shaped) can be determined by fluid displacement. Displacement of liquid can also be used to determine the volume of a gas. The combined volume of two substances is usually greater than the volume of just one of the substances. However, sometimes one substance dissolves in the other and in such cases the combined volume is not additive.[2]

In differential geometry, volume is expressed by means of the volume form, and is an important global Riemannian invariant. In thermodynamics, volume is a fundamental parameter, and is a conjugate variable to pressure.

Answer:

Explanation:

3618

Explanation:

D : a negative charge repels a negative charge because like charges repel unlike the unlike charges that attract according to the fundamental law of electrostatics

Answer:

1) 3.478            3.48

2) 65.345         6.53x10^1

3) 4444              4.44x10^3

4) 3.1416              3.14

5) 55555            5.56x10^4

6) 45.35455       45.4x10^1

Explanation:

Answer:

Steel is an example of a solid-solid solution (aka an alloy).

Explanation:

Answer:

d. Bacteria is the correct classification

Answer:

193.6

Explanation:

d=m/v

2.2=x/88

2.2×88=193.6

Answer:

0.075 kg

750 dg

7.5 dag

Explanation:

1 kg = 1000 g

So, 0.075 kg = (0.075 × 1000)g = 75 g

1 dg = 0.1 g

So, 750 dg = (750 × 0.1) g = 75 g

1 dag = 10 g

So, 7.5 dag = (7.5 × 10) g = 75 g

A liquid

B solid

c gas

the internolecular forces in a solid state are packed and leave no spaces and in a liquid are semi packed and leave little space and in gas the particles are loose

Answer:

Hi, There! Your Answer Is Below.

A. gloves

Explanation:

Personal protective equipment, commonly referred to as “PPE”, is equipment worn to minimize exposure to a variety of hazards. Examples of PPE include such items as gloves, foot and eye protection, protective hearing devices (earplugs, muffs) hard hats, respirators and full body suits. Understand the types of PPE.

(Dont Forget to Mark Thanks)

Have A Wonderful Day! :)

Safety equipment provides personal protection in a laboratory and includes gloves, safety goggles, aprons, etc. A fire blanket is not often required in labs. Thus, option C is correct.

Safety equipment is defined as the material used in laboratories to provide protection against reactive dangerous chemicals, gases, spills, radiological emissions, and other hazardous events.

Gloves, eyewear, aprons, lab coats, safety goggles, first aid kits, and fire extinguishers are the most important personal safety protection equipment. They are used so to avoid any chemical spills on the skin, eye irritation, etc.

Fire blankets are not generally used as safety equipment in laboratories though they are used in fire emergencies to put the fire out on a person or an object by cutting down the supply of oxygen.

Therefore, option C. a fire blanket is not used for personal protection.

Learn more about safety equipment, here:

https://brainly.com/question/20103808

#SPJ2

Answer:

Bueno, ambos son asignaturas de ciencias ...

Explanation:

Explicación:

Y ambos son necesarios para comprender mejor el mundo y el universo, junto con la biología y las matemáticas. Hay una materia que se basa en gran medida tanto en la química como en la física, que es la química física.

La química física estudia principalmente la energía, los orbitales atómicos, la termodinámica y la mecánica cuántica.

En química, puede aprender sobre átomos, iones y núcleos de un átomo y demás. Todos esos modelos fueron creados gracias a grandes físicos como Niels Bohr y Erwin Schrodinger.

Esos son algunos ejemplos en los que creo que la química está relacionada con la física.

Enlace de respuesta

Answer:

4. If cotton plants need a consistent amount of water to grow steadily, then a cotton plant that displays steady growth will receieve 100 mL of water every day.

Explanation:

Hypotheses are written in the format of "If... then...". It should include information on both variables to arrive at a conclusion point.

The percentage of daily kilocalories of the person that come from fat is 20%.

The diet of a person is composed mainly of carbohydrates (C), proteins (P) and fat (F), that is, the sum of the 3 sources amount to 100% of the consumed kilocalories. Given that 50% of the daily kilocalories of this person come from carbohydrates and 30% come from protein, the percentage that comes from fats is:

[tex]C + P + F = 100\%\\F = 100\% - C - P\\F = 100\% - 50\% - 30\% = 20\%[/tex]

The percentage of daily kilocalories of the person that come from fat is 20%.

You can learn more about percentage here: https://brainly.com/question/92258

2,2,4-trimetilpentano is the answer.

Answer:

b. Malic Acid

Explanation:

Malic (organic) Acid is found in apple.

GL

Atomic number = 15 and mass number = 31 where an atom has 15 protons, 15 electrons and 16 neutrons.

An atom consists of a central nucleus that is usually surrounded by one or more electrons.

The atomic number of an atom is equal to the number of protons in the nucleus of an atom or the number of electrons in an electrically neutral atom. Atomic number = Number of protons.

Mass number is the sum of the numbers of protons and neutrons present in the nucleus of an atom.

Hence, atomic number=15 and mass number=31.

Learn more about the atom here;

https://brainly.com/question/4186338

#SPJ2

Answer:

number of electrons

Explanation:

(happy to help)

Answer:

mass = kg

volume = cubic meters

time = seconds

length = meters

temperature = degrees Celsius

Explanation: