Write a nuclear equation for the alpha decay of 236 94 pu

An unmanned spacecraft leaves for Venus. The statements, The weight of the spacecraft keeps changing and The mass of the spacecraft remains the same. This 2 statements A and D are true.

A spaceship is a machine or vehicle built to travel through space. Spacecraft are a form of artificial satellite utilised for a wide range of tasks, such as communications, Earth observation, meteorology, navigation, space colonisation, planetary exploration, and freight and person transfer. All spacecraft, with the exception of single-stage-to-orbit vehicles, need a launch vehicle (carrier rocket) to get into space.

A spacecraft that is performing a sub-orbital spaceflight launches into space and then lands without gaining enough momentum or energy to complete a full orbit of the Earth. Spacecraft enter confined orbits around the Earth or other celestial bodies for orbital spaceflights. Only humans are carried on human spacecraft either as crew or guests from launch or while in orbit (space stations).

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An isosceles triangle with two sides of 100 cm and one of 20 cm is formed by the threads and the balls.

The electric charge particles that make up the electrostatic force behave as both an attracting and a repulsive force. It is additionally called Columb's force. Charles-Augustin de Coulomb, a French scientist, would be honored by having the Columb attraction bear his name. However, electrostatic force is one of the four fundamental forces of nature. The forces add up to zero.

F=kq2/d2 is horizontally oriented.

Straight down, the gravitational force is mg, and the thread's tension is T.

The horizontal tension balances the electrostatic field, whereas the vertical tension balances gravity.

An isosceles triangle with two sides of 100 cm and one of 20 cm is formed by the threads and the balls.

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Answer:

» Battery or cell

» Switch

» Connecting wires

» Resistor or appliance

The quantity of energy transferred or transformed per unit of time is known as power.

The watt, or one joule per second, is the unit of power in the International System of Units. Power is also referred to as activity in ancient writings. A scalar quantity is power.

Power is related to other factors; for instance, the power required to move a ground vehicle is equal to the product of the vehicle's velocity, traction force on its wheels, and aerodynamic drag.

A motor's output power is calculated by multiplying its torque output by the angular velocity of its output shaft.

Therefore, The quantity of energy transferred or transformed per unit of time is known as power.

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Answer:

a)   i₈ = 0.5 i₄,  b)   i₁₀ = 0.3 i₃,    i₁₀ = 0.8 i₈

Explanation:

For this exercise we use ohm's law

       V = i R

        i = V / R

we assume that the applied voltage is the same in all cases

let's find the current for each resistance

R = 4 Ω

         i₄ = V / 4

R = 8 Ω

         i₈ = V / 8

we look for the relationship between these two currents

         i₈ /i₄ = 4/8 = ½

         i₈ = 0.5 i₄

R = 3 Ω

        i₃ = V3

R = 10 Ω

        i₁₀ = V / 10

we look for relationships

       i₁₀ / 1₃ = 3/10

       i₁₀ = 0.3 i₃

       i₁₀ / 1₈ = 8/10

       i₁₀ = 0.8 i₈

The rim of the wheel holds the tire beads in place.

The rim of a wheel plays a crucial role in holding the tire beads in place. The tire beads are the edges of the tire that grip onto the rim to secure the tire in position.

The rim typically consists of an outer circular structure that forms the edge of the wheel. It has a specific design and construction to provide a secure seating for the tire beads.

The rim features a flange or lip on both sides that provides a ledge for the tire beads to rest against. The inner diameter of the rim matches the outer diameter of the tire beads, ensuring a snug fit. When the tire is mounted onto the rim, the tire beads are pushed over the flange and locked into place.

The tight fit between the tire beads and the rim, along with the air pressure inside the tire, creates a strong bond that prevents the tire from slipping off the rim during rotation or when encountering bumps and forces while driving. This ensures the stability and safety of the tire while in use.

Overall, the rim's design and construction are specifically engineered to securely hold the tire beads in place, providing a reliable connection between the tire and the wheel.

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When conducting a hydrostatic pressure experiment, submerging a quarter-circle allows for a simplified analysis of the forces involved in the pressure measurement. The quarter-circle shape is chosen because it is easier to calculate the forces involved and they can be measured with a simple set up.

Choices Explained

The forces on the curved surfaces can be ignored: When a quarter-circle is submerged, only two flat surfaces are exposed, which allows for a simpler calculation of the forces. As a result, the forces on the curved surfaces can be ignored.The quarter-circle was easier to manufacture: The quarter-circle shape can be easily produced using a variety of manufacturing techniques. This makes it an attractive shape for use in hydrostatic pressure experiments.The curved surface area is minimized: The curved surfaces of a quarter-circle are minimized, which reduces the overall surface area of the object that is exposed to the fluid. This, in turn, makes it easier to measure the forces that are acting on the object.

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The conversion of energy can occur by the first law of thermodynamics.

We have to note that the kinetic energy would have to do with the energy of an object that is in motion. In this case, we can see that we have been told that super hero can be able to turn potential energy into kinetic energy.

This is in obedience to the first law of thermodynamics which states that energy can neither be created nor destroyed rather it can be converted from one form to another.

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Answer:

d

Explanation:

Answer:

But if you place a clear container filled with hydrogen gas between the flashlight and the prism, gaps appear in the smooth rainbow of colors, places where the light literally goes missing. The dark absorption lines of a star at rest (left) get shifted towards red if the star is moving away from Earth (right)

Explanation:

=================================================

W = work = unknown

F = force = 700 N

d = displacement = 0.45 m

----------

W = F*d

W = (700 N)*(0.45 m)

W = (700*0.45) Nm

W = 315 Nm

W = 315 J

---------------

notes:

The pressure transmitted in the hydraulic fluid is 4000 Pa and the mass of the load is 40.82 kg.

To determine the pressure transmitted in the hydraulic fluid, we can use the formula:

Pressure = Force / Area

Given that a force of 20 N is applied to the small piston and the cross-sectional area of the small piston is 0.005 m², we can calculate the pressure as follows:

Pressure = 20 N / 0.005 m²

Pressure = 4000 Pa

Therefore, the pressure transmitted in the hydraulic fluid is 4000 Pa.

To determine the mass of the load, we need to consider the equilibrium of forces in the hydraulic system. The force applied to the small piston is transmitted to the larger piston. Since the system is in equilibrium, the force exerted by the larger piston must balance the force applied to the small piston.

Using the formula:

Force = Pressure × Area

The force exerted by the larger piston can be calculated as follows:

Force = Pressure × Area (large piston)

Force = 4000 Pa × 0.1 m²

Force = 400 N

Therefore, the force exerted by the larger piston is 400 N.

Since force is equal to mass multiplied by acceleration (F = m × a), and the acceleration due to gravity is approximately 9.8 m/s², we can calculate the mass of the load:

400 N = mass × 9.8 m/s²

Solving for the mass:

mass = 400 N / 9.8 m/s²

mass ≈ 40.82 kg

Therefore, the mass of the load is approximately 40.82 kg.

The question was incomplete. find the full content below:

The diagram shows a basic hydraulic system which has a small piston and a large piston with cross-sectional areas of 0.005m² and 0.1m² respectively. A force of 20 N is applied to the small piston. Determine (a) the pressure transmitted in the hydraulic fluid (b) the mass of the load​

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Your eye as well as the spider's image in the mirror are 1.28 meters apart.

A mirrors is a luminance that reflects light and creates an actual or fictitious picture. An device that returns an image is a reflector or looking glass, which reflects the image of the object when it is positioned in front of it. When focused through an eye or camera lens, light that reflects off a mirror will reveal an image of everything that was in front of it. Mirrors reflect light at an equal but opposite angle, reversing the orientation of the image.

The image distance is equal to the object distance:

Distance between the spider and mirror = 40cm

So, the image is formed 40cm inside the mirror

Distance between the person and mirror = 68cm

Distance between the image and person = 68+40= 128cm

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Answer:

At 23.5 deg north of the equator this person would see the sun directly overhead at the summer solstice at noon

Answer:Yes, water indeed expands when it changes form from liquid to solid. And this is because water has a property called “hydrogen bonds”, and these bonds occur between each water molecule. But when water is in a liquid form these hydrogen bonds break more easily and occur less frequently. When the temperature drops the kinetic energy also drops, which in turn makes hydrogen bonds form more frequently. So the water molecules form a lattice, which is less dense than regular liquid water.

Explanation:

The frequency range of electromagnetic waves of X-ray is 3 ×10¹⁶ Hz to  3 ×10¹⁹ Hz. The wavelength range of electromagnetic waves of X-ray is  0.01 nm t0 10 nm.

The electromagnetic spectrum of electromagnetic waves can be described as the range of frequencies of electromagnetic radiation and its wavelengths and photon energies. The electromagnetic spectrum have range from one Hertz to above 10²⁵ Hertz.

The wavelength of electromagnetic radiation lies in between 380 to 760 nm and is detected by the human eye and characterized as visible light.

Electromagnetic waves of each frequency band are known by different names; starting at the low frequency (long wavelength) end of the spectrum these are radio waves, microwaves, infrared (IR), visible light, UV, X-rays, and gamma rays at the high-frequency (short wavelength) end.

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Answer:

To find the direction and speed of the two cars after the collision, you need to perform a momentum analysis. The momentum of the two cars before the collision can be calculated as follows:

Momentum of car c = 1325 kg * 27.0 m/s = 35725 kg m/s (north)

Momentum of car d = 2165 kg * 11.0 m/s = 23815 kg m/s (east)

The total momentum of the two cars after the collision is equal to the sum of their momenta before the collision. This is a vector sum, which can be represented by an arrow pointing in the direction of the total momentum.

The final velocity of the two cars can be found by dividing the total momentum by the total mass.

Total momentum = 35725 kg m/s + 23815 kg m/s = 59540 kg m/s

Total mass = 1325 kg + 2165 kg = 3490 kg

Final velocity = Total momentum / Total mass = 59540 kg m/s / 3490 kg = 17.0 m/s

This velocity is directed somewhere between north and east. The exact direction and speed of the two cars after the collision depends on their initial positions and orientation, which are not specified in the question.

Answer:

The correct option is;

Adrenalin

Explanation:

The presence of Adrenalin can cause headaches, memory loss, confusion, make a person unable to concentrate, and therefore, generally affects the mode in female, as such it is important for a decrease the level of Adrenalin by exercising, which causes the Adrenalin and cortisol to reduce in a similar  way to consuming gasoline by burning gasoline, cardiovascular exercises burns Adrenaline.

Doing exercises causes adrenaline and cortisol, which are the body's stress hormones to be reduced.

Answer:

It's adrenaline

Explanation:

I just took a quiz and got it right

The potential difference between the battery's terminals, which is produced by the chemical reactions inside the battery, causes the flow of electrons and produces electrical energy.

A battery generates electrical energy by creating a potential difference in electric charge between its negative terminal and its positive terminal.

This potential difference, also known as voltage, creates an electric field that causes electrons to flow from the negative terminal, through the circuit, to the positive terminal.

As the electrons flow, they create a current that can be used to power electronic devices or perform other useful work. The chemical reactions that occur within the battery create the potential difference between its terminals, which drives the flow of electrons and generates electrical energy.

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Answer:

C.

Explanation:

c. the source is written by the person who conducted the experiment. A primary source is an original piece of information created at the time under study. It can be a diary, a letter, a photograph, a recording, or any other type of artifact. It provides firsthand information about an event or topic, and is created by a person who was directly involved or witnessed it.

When using statistics from news articles or information from other sources, people should exercise caution because they might not always reflect the whole picture or might be presented in a biased or misleading way.

Statistics are not always based on accurate or reliable data, and they can be readily manipulated or misunderstood to support an agenda or stance.

Before making any decisions or acting on the data, it is essential to confirm the information's source and take into account the context in which it is presented. Furthermore, outdated or based on a small sample size statistical data may have an impact on their reliability and accuracy.

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Label the rows as the electron energy levels:

The rows of the periodic table are also known as periods. There are seven periods, and each period corresponds to a particular energy level. You can label them from 1 to 7, starting from the top row.

Label the number of valence electrons in Columns 1, 2, and 13-18:

Columns 1 and 2 are the s-block elements, and they have 1 and 2 valence electrons, respectively. Columns 13-18 are the p-block elements, and they have 3 to 8 valence electrons, respectively. You can label the number of valence electrons in each column.

Label the metals, semi-metals, and non-metals using different colors:

Metals are on the left side of the periodic table, semi-metals are in the middle, and non-metals are on the right side. You can use different colors to label them without obscuring any of the information about different elements.

Label the ion charges for elements in the first 3 rows:

Elements in the first 3 rows of the periodic table have predictable ion charges. The alkali metals (Group 1) have a charge of +1, the alkaline earth metals (Group 2) have a charge of +2, and the elements in Group 13 have a charge of +3. For Groups 15, 16, and 17, the charges are -3, -2, and -1, respectively. The noble gases (Group 18) are unreactive and do not form ions. You can write these charges for each element in their respective positions.

Label the trends for atomic size, ionization energy, and electron affinity:

Atomic size generally decreases from left to right across a period and increases from top to bottom within a group. Ionization energy generally increases from left to right across a period and increases from bottom to top within a group. Electron affinity generally increases from left to right across a period and becomes less negative from top to bottom within a group. You can label these trends on your periodic table as well.

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Answer:

Explanation:

The three things that occur naturally everyday and how science has had an impact on what we think or do about them is

Photosynthesis is a process in which green plants manufacture there own food in the presence of sunlight through the equation below

6CO₂ + 6H₂O ⇒ C₆H₁₂O₆ + 6O₂

From the equation above, it can be seen that aside from the food (C₆H₁₂O₆) produced by green plants during photosynthesis, science has assisted us in knowing that these green plants take-up the carbon dioxide (CO₂) that is exhaled by humans and release the oxygen (O₂) that is inhaled by humans thereby purifying the air of the surrounding they are found. This concept has made man understand the importance of planting in residential areas.

Depletion of the Ozone layer; the ozone layer is a layer in the earth stratosphere which shields the earth from direct sunlight/rays. Over the years, the burning of hydrocarbon on earth has caused the depletion of this layer thereby exposing the earth to more direct sunlight from the sun. Science has had an impact in the thinking of man in this regard by making us more conscious of the risk of burning these hydrocarbons which has led to the collective efforts by governments across the world to minimize the burning of these substances.

Rain; rain are droplets of water that fall from the atmosphere. Rain formation occurs when water (in the form of ocean, river and/or seas) are evaporated into the atmosphere as a result of heat from the sun. These evaporated water molecule rises and cools down to form and form a cloud It is then returned to earth in the form of rain. This explanation changes the mythical understanding of rain in different culture

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Answer:

A is answer

Explanation:

this is helpful

Answer:

the hot air balloon

Explanation:

Warmer air is less dense than cooler air, so it rises faster compared to a cooler hot air ballon.

The balloon filled with hot air will rise higher because of its lesser density.

Density of an object is defined as the mass per unit volume of the object. It is considered as the measure of amount of substance in a give space.

Here,

Two hot-air balloons are filled at the same time. Among them, one is filled with warm air and the other one is filled with hot air.

When the balloons are released to go up, the balloon filled with hot air will rise higher. This is because of the difference in their density.

When the hot air is filled, its temperature is increased. Therefore the volume also increases which will result in the decreased density of the hot air balloon.

The balloon filled with hot air will be less denser when compared to the other. The buoyancy of the balloons is affected by their densities.

The hot air in the balloon is less denser than the cool air. So, the buoyancy of the hot air balloon will be more than that with warm air. As a result, the balloon filled with hot air will rise higher in the air.

Hence,

The balloon filled with hot air will rise higher because of its lesser density.

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The change in momentum of the bowling ball of mass 8.11 kg is 159.152 kgm/s.

The change in the momentum is equal to the product of the mass and the change in the velocity.

To calculate the change in momentum of the bowling ball, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the change in momentum of the ball is 159.152 kgm/s.

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Complete question: A force of 203 N is exerted on 8.11 -kg bowling ball over time span of 0.784 seconds. Calculate the change in momentum of the bowling ball

The Sun's radiant energy is composed of shorter wavelengths compared to Earth's primarily due to the Sun's greater surface temperature.

The Sun's radiant energy is composed of shorter wavelengths compared to Earth's because of the Sun's greater surface temperature.

The surface temperature of the Sun is significantly higher than that of the Earth. The Sun's surface temperature is around 5,500 degrees Celsius (9,932 degrees Fahrenheit), while the Earth's surface temperature averages around 15 degrees Celsius (59 degrees Fahrenheit).

According to Wien's law, which describes the relationship between the temperature of a black-body radiator and the wavelength of its peak emission, higher temperatures correspond to shorter wavelengths. As the Sun has a much higher surface temperature, it emits a greater amount of energy in shorter wavelengths, including visible light and shorter wavelengths in the electromagnetic spectrum.

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Answer: the electromagnetic spectrum

Explanation:

The full range of frequencies of electromagnetic radiation is called the electromagnetic spectrum. From longest to shortest wavelengths, it includes radio waves, microwaves, infrared light, visible light, ultraviolet light, X rays, and gamma rays.

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