Yurem is pulling a wagon across the playground with a force of 10 N. He asks Elian a to help. She agrees and pushes the back of the wagon in the same direction with a force of 12 N. What is the net force acting on the wagon?

The wolf's kinetic energy is 2,500 joules, calculated using the formula KE = 0.5 × mass × velocity².

The kinetic energy of an object is the energy it possesses due to its motion.

It can be calculated using the formula KE = 0.5 × mass × velocity², where KE represents kinetic energy, mass is the object's mass in kilograms, and velocity is its speed in meters per second.

In this case, the mass of the wolf is 50 kg, and its velocity is 10 m/s.

Plugging these values into the formula, we get KE = 0.5 × 50 × (10)², which simplifies to KE = 0.5 × 50 × 100.

Therefore, the wolf's kinetic energy is 2,500 joules.

For more such questions on kinetic energy, click on:

https://brainly.com/question/8101588

#SPJ11

Answer:

rotation is a day and revolution is 365 days

Answer:

Density= 2.78 g/cm³

Relative density=2.8

Explanation:

To calculate the density of the cube we have to use the formula ρ=mass/volume

ρ stands for density.

So now we don't have the volume of the cube and to find the volume of the cube we have to use the formula a³

3³= 9 cm³

Now plug in the values. ρ= 25 g/9 cm³

ρ= 2.78 g/cm³

To find the relative density, we have to use the formula ρsample/ρH20

The sample means the density of the substance earlier. We do not know the density of water but it is constant at 997 kg/m³.

Now we have to make the units same so you change the unit of the density of cube to kg/m³

So, 25/1000= 0.025 kg

9/100×100×100 (because cm³ which means that there should be 3 meters to change the unit and to conver cm to meter we need to divide by 100 so 9cm/100, 9cm²/100×100, 9cm³/100×100×100)

=0.000009 m³

The new density= 0.025 kg/ 0.000009 m³

= 2777.78 kg/m³

Now plug the values into the formula:

relative density= 2.777.78 kg/m³ / 997 kg/m³

=2.8

There is no unit since kg/m³ and kg/m³ cancels

Surprise is the facial expressions is recognized by people of all cultures.

Learn more about facial expression refer to :

https://brainly.com/question/15850146

#SPJ4

The electric field between the plates of an air capacitor of plate area 0.8 m^2 and the Maxwell's displacement current, we need additional information such as the distance between the plates and the voltage applied to the capacitor.

The electric field between the plates of a capacitor is given by the formula E = V/d, where V is the voltage applied to the capacitor and d is the distance between the plates. If we have the value of d and V, we can calculate the electric field.

Maxwell's displacement current, we need to know the rate of change of the electric field in the region between the plates of the capacitor. This can be difficult to determine without additional information about the circuit. However, we can say that the displacement current will be proportional to the rate of change of the electric field and the permittivity of free space. If we have the value of the electric field and the rate of change of the field, we can calculate the displacement current.

To know more about capacitor visit:

https://brainly.com/question/31627158

#SPJ11

Answer:

BLACKPINK IN YOUR AREA MATH IS SO MUCH FUN

Explanation:

PERIOD AHH

When light is incident on a thin film, interference between the reflected and transmitted waves leads to the formation of bright and dark fringes. The condition for constructive interference is given by:

2nt = mλ

where n is the refractive index of the film, t is its thickness, m is an integer, and λ is the wavelength of light.

For the given sliver of fluorite, the thickness t = 83.0 nm = 8.3 × 10^-8 cm. The refractive index of fluorite varies with wavelength, but for simplicity, let's assume it is approximately 1.4.

Using the above equation, we can find the wavelength of light that is most strongly reflected:

2nt = mλ

λ = 2nt/m

For m = 1 (first-order maximum), we get:

λ = 2 × 1.4 × 8.3 × 10^-8 / 1 = 2.32 × 10^-7 cm

Converting to nm, we get:

λ = 232 nm

Therefore, the wavelength of light that is most strongly reflected by the 83.0-nm-thick sliver of fluorite is approximately 232 nm.

Learn more about Wavelength here:- brainly.com/question/24452579

#SPJ11

To determine the distance δymax−min between the second maximum of laser 1 and the third minimum of laser 2, on the same side of the central maximum, we need to consider the interference pattern created by the two lasers.The interference pattern and the distances between the maximums and minimums depend on these parameters. Each laser's interference pattern is influenced by the properties of the laser itself, the distance between the lasers, and the setup in which the interference is occurring.

In an interference pattern, the maximums (bright fringes) and minimums (dark fringes) occur due to the constructive and destructive interference of the waves emitted by the two sources. The distance between consecutive maximums or minimums is determined by the wavelength of the light and the geometry of the setup.

Since we're interested in the second maximum of laser 1 and the third minimum of laser 2, we can assume that these points are close to each other on the same side of the central maximum.

The distance δymax−min between these two points would depend on the specific setup, including the distance between the sources, the angle at which the light is observed, and the wavelength of the laser light. Without specific information about these parameters, it is not possible to provide an exact value for δymax−min.

To determine the distance δymax−min accurately, the specific details of the interference setup, such as the distance between the sources and the wavelength of the laser light, would need to be provided.

Learn more about  central maximum here:

brainly.com/question/30365113

#SPJ11

There are 20,971,520 strings of eight English letters that contain no vowels when letters can be repeated.To calculate the number of strings of eight English letters that contain no vowels.

we need to consider the total number of possible choices for each letter position.

In the English alphabet, there are 26 letters, including five vowels (A, E, I, O, U) and 21 consonants.

Since we want to create strings without vowels, we can choose any of the 21 consonants for each position in the string.

For each of the eight positions in the string, there are 21 choices (consonants) available.

Therefore, the total number of strings can be calculated as:

Total number of strings = Number of choices for each position ^ Number of positions

Total number of strings = 21^8 = 20,971,520

To know more about strings ,visit:

https://brainly.com/question/30392694

#SPJ11

The deposits on a properly burning spark plug should be very little or none. A spark plug works as a sensor in an engine and the deposits indicate the overall health of the engine.

Deposits on a spark plug are often black, brown, or greyish in color. When the deposits are more, it may indicate that the engine is not running as efficiently as it should or that it has some problem causing the engine to misfire. If the engine is not running efficiently or is not burning fuel, it can cause the spark plug deposits to build up quickly. Therefore, it is important to keep the spark plugs clean and free from excessive deposits to ensure optimal engine performance.

The deposits on a properly burning spark plug should be very little or none. A spark plug works as a sensor in an engine and the deposits indicate the overall health of the engine.

When the spark plug is functioning properly, it burns off any fuel or oil that comes into contact with it during the combustion process. This results in very little or no deposit buildup on the spark plug. However, if the engine is not running efficiently, such as when it is misfiring or not burning fuel properly, it can cause the spark plug deposits to build up quickly.There are several types of deposits that can accumulate on a spark plug. Carbon deposits are typically black in color and are caused by incomplete combustion of fuel. Oil deposits, on the other hand, are typically brown or greyish in color and are caused by worn piston rings or valve seals, which allow oil to seep into the combustion chamber and burn with the fuel. Deposits can also indicate that the engine is running too hot, which can be caused by a malfunctioning cooling system or a lean air-fuel mixture.

A properly burning spark plug should have very little or no deposits. Excessive deposits can indicate that the engine is not running efficiently and may require maintenance or repair. It is important to keep the spark plugs clean and free from excessive deposits to ensure optimal engine performance.

To know more about combustion  :

brainly.com/question/31123826

#SPJ11

Answer:

25.25m

Explanation:

The Depth or distance would be:

d = acceleration x time² / 2

If the stone was held at a dead stop until dropped, acceleration is equal to gravity which is 9.8 m/s²

So then you have:

d = (9.8m/s²)(2.27s)² / 2  or (9.8m/s²)(2.27s)(2.27s) / 2

the seconds cancel each other out and you're left with meters.

d = 25.25 m

The words experiences in Niels Bohr's life that led to his interest in science and the study of the atom is he disliked writing essays and talented in mathematics.

Atom is the smallest unit of the element. Different elements have different size atoms and same element have same size atoms.

Neil Bohr loved talking, he had a disliking of writing essays. He was talented in mathematics. He then attracted to the sciences. Physics  interested Neil and when he was a teenager, he started correcting the mistakes in his school's textbooks.

The contributions are present in the modern atomic model. They are: All matter consists of atoms. Atoms of the same element are the same in size and atoms of different elements are different. Atoms combine in whole-number ratios to form compounds.

Thus, Physics interested him to further study for atom.

Learn more about atoms.

https://brainly.com/question/1566330

#SPJ1

Answer:

Neodymium (Nd)

Explanation:

An element is made up of atom, which contains three subatomic particles namely; proton, electron, and neutron. In a neutral atom, the number of protons determines the atomic number of that element and the atomic number of an element is the identity of that element in the periodic table.

Hence, a change in the proton number of an element means a change in the atomic number and ultimately a change of that element. In this question, Europium (Eu) element with atomic number, 63, loses three protons. This means that that atom now has 60 protons, which denotes the atomic number of another element called Neodymium (Nd).

Therefore, Europium (Eu) element has become Neodymium (Nd) due to loss of protons.

Answer:

all but biodeisel and batteries

Explanation:

well batteries are used to STORE energy not generate it

To efficiently create a small rocket that attains a maximum vertical launch,  design parametres are ; desired altitude,Choose the right fuel, Calculate fuel amount,Optimize the rocket's mass,

1. Determine the desired altitude: Set a target altitude for the rocket's maximum vertical launch. This will help you choose appropriate fuel and design parameters.

2. Choose the right fuel: Research various types of rocket fuels to find the one with the best performance and efficiency for your rocket size. Consider factors such as energy density, specific impulse, and burn rate.

3. Calculate fuel amount: Use the rocket equation and your chosen fuel's specific impulse to determine the required fuel mass to reach the target altitude.

4. Optimize the rocket's mass: Design the rocket's structure to minimize its mass while maintaining strength and stability. Use lightweight materials and consider trade-offs between mass and other design parameters.

5. Design the nozzle: Adjust the nozzle's design parameters, such as throat diameter and expansion ratio, to maximize thrust and optimize the exhaust velocity for your specific fuel and altitude.

6. Optimize the stability: Design the rocket's fins and placement of the center of mass to ensure stability during the vertical launch. Proper stability will help the rocket maintain its desired trajectory.

7. Test and iterate: Perform tests on your rocket to measure its performance and make any necessary adjustments to the fuel and design parameters to improve its efficiency and achieve the maximum vertical launch.

To learn more about design parameters https://brainly.com/question/27872463

#SPJ11

a) The isocost curve equation is G = (20000 - 100C)/500. b) The isocost curve equation is G = (30000 - 100c)/500. c) The isocost curve equation is G = (20000 - 100C)/375. d)  The isocost curve equation is G = (20000 - 120C)/500.

To draw the isocost curve showing the different combinations of gas and coal, we need to use the cost per unit values for coal and gas, as well as the given expenditure (TC) and the changes in expenditure or prices.

Let's denote the quantity of coal as C and the quantity of gas as G. The cost per unit of coal is 100, and the cost per unit of gas is 500.

(a) Initial expenditure (TC) of 20000:

To find the combinations of gas and coal that can be purchased with an initial expenditure of 20000, we can use the following isocost equation

TC = 100C + 500G

We can rearrange the equation to solve for G in terms of C

G = (TC - 100C) / 500

Now we can plot the isocost curve with TC = 20000 using the equation above.

(b) Expenditure (TC) increases by 50%

If the expenditure increases by 50%, the new expenditure (TC_new) becomes 1.5 × TC = 1.5 × 20000 = 30000.

We can use the same isocost equation as before, but with the new expenditure value:

TC_new = 100C + 500G

Rearranging the equation to solve for G

G = (TC_new - 100C) / 500

Now we can plot the isocost curve with TC_new = 30000.

(c) Gas price reduced by 25%:

If the gas price is reduced by 25%, the new cost per unit of gas (Gas_new) becomes 0.75 × 500 = 375.

We can use the original isocost equation, but with the new cost per unit value:

TC = 100C + 375G

Rearranging the equation to solve for G

G = (TC - 100C) / 375

Now we can plot the isocost curve with the reduced gas price.

(d) Coal price rises by 20%

If the coal price rises by 20%, the new cost per unit of coal (Coal_new) becomes 1.2 × 100 = 120.

We can use the original isocost equation, but with the new cost per unit value:

TC = 120C + 500G

Rearranging the equation to solve for G:

G = (TC - 120C) / 500

Now we can plot the isocost curve with the increased coal price.

By plotting these isocost curves on a graph with G on the y-axis and C on the x-axis, we can visualize the different combinations of gas and coal that can be purchased at the given expenditures or price changes.

To know more about isocost curve here

https://brainly.com/question/30825503

#SPJ4

The voltage across the wire-wound resistor has a resistance of 200 ohms and the current across this circuit of 0.08 amperes will be 160 V.

Ohm's Law is a formula which is used to calculate the relationship between voltage or potential difference across the circuit, the electric current and resistance in an electrical circuit.

The expression for this law will be:

V = IR

where, V is the voltage,

I is the electric current,

R is the resistance across the circuit

V = IR

V = 200 × 0.8

V = 160 volts.

Learn more about Ohm's law here:

https://brainly.com/question/1247379

#SPJ1

Answer:

Mercury

Explanation:

The pressure to atmospheres, divide the pressure by 101,325 Pa, which is the atmospheric pressure at sea level 116.1 atm.

Atmospheres is a measure of atmospheric pressure, defined as the pressure exerted by the weight of air above a given point. It is typically measured with a barometer, a device which measures the pressure of the surrounding air. Atmospheric pressure decreases with increasing altitude and is measured in units of atmospheres (atm). The average atmospheric pressure at sea level is approximately one atmosphere, or 101.3 kilopascals (kPa). The effects of atmospheric pressure can be seen in everyday life, as it affects the boiling point of water, the speed of sound, and the behavior of aircraft.

The pressure required to lift the car is:
P = (1200 kg * 9.8 m/s2) / A

Since the area is unknown, we can calculate the pressure in Pascals.
P = 11,760,000 Pa

To convert the pressure to atmospheres, divide the pressure by 101,325 Pa, which is the atmospheric pressure at sea level:
Atmospheres = 11,760,000 Pa / 101,325 Pa = 116.1 atm

To learn more about atmospheres
https://brainly.com/question/31441811
#SPJ4

Answer:

I think its B. Please keep in mind that I could be wrong.

Explanation:

Answer:

the neutron star becomes a black hole

Answer:

neutron stars

Explanation:

not really sure of an explanation, but maybe try looking up for "What type of star ends up as a blackhole?" should help

The unknown mass of the 15°C water is determined to be 32 kg.

To find the unknown mass of the 15°C water, we can apply the principle of conservation of energy. The heat lost by the 80°C water is equal to the heat gained by the 15°C water.

The heat gained or lost can be calculated using the equation:

Q = m * c * ΔT

Where:

Q is the heat gained or lost (in joules),

m is the mass of the water (in kilograms),

c is the specific heat capacity of water (4200 J/kg°C), and

ΔT is the change in temperature (in °C).

Let's calculate the heat gained by the 15°C water and equate it to the heat lost by the 80°C water:

Q_gained = Q_lost

m_gained * c * ΔT_gained = m_lost * c * ΔT_lost

Substituting the given values:

m_gained * 4200 * (40 - 15) = 20 * 4200 * (80 - 40)

Simplifying the equation:

m_gained * (40 - 15) = 20 * (80 - 40)

m_gained * 25 = 20 * 40

m_gained = (20 * 40) / 25

m_gained = 32 kg

To know more about conservation of energy refer here

https://brainly.com/question/13949051#

#SPJ11

Answer:

Explanation:

A capacitor is an electronic component that stores and releases electrical energy. It consists of two conductive plates separated by an insulating material called a dielectric. When a voltage is applied across the plates, charge accumulates on them, creating an electric field between the plates.

The capacitance of a capacitor is a measure of its ability to store charge. It is typically represented by the symbol 'C' and is measured in farads (F). In your case, you mentioned a 55-μF (microfarad) capacitor, indicating its capacitance value.

When a voltage waveform is applied across a capacitor, the capacitor charges and discharges in response to the changes in voltage. The rate at which the capacitor charges and discharges depends on the capacitance and the resistance in the circuit

Since there is no figure provided in the text, I am unable to reference it for the specific details of the voltage waveform. However, I can explain the general behavior of a capacitor when a voltage waveform is applied.

When a voltage waveform is applied across a capacitor, the capacitor charges and discharges in response to the changes in voltage. The behavior of the capacitor is determined by its capacitance, which is given as 55 μF in this case.

As the voltage waveform varies, the capacitor stores and releases electrical charge. During the rising portion of the waveform, the capacitor charges and accumulates energy. During the falling portion, the capacitor discharges and releases the stored energy.

The exact behavior and characteristics of the voltage waveform and the charging/discharging process depend on the specific shape and frequency of the waveform. Without the specific details of the voltage waveform provided in the figure, it is challenging to provide a more detailed analysis.

Learn more capacitor about here

https://brainly.com/question/31627158

#SPJ11

Based on damage in the photo, it is possible that the movement responsible could be from an earthquake.

Seismic waves spread through the ground in different ways when an earthquake occurs which often results to different types of waves. They includes:

Read more about earthquake

brainly.com/question/248561

#SPJ1

Answer:

deeper red

Explanation:

hope this helps

The ratio of the output force exerted by the last machine in the series divided by the input force applied to the first machine is the mechanical advantage of a compound machine.

A machine is a physical system that use power to exert forces, regulate movement, and carry out an action.

A compound machine is a device made up of several simple machines connected in series, each of which serves as the input force for the others. A simple gear train is made up of several gears (wheels and axles) connected in series, just like a bench vise is made up of a lever (the vise's handle) and a screw.

The product of the mechanical advantages of the series of basic machines that make up the compound machine equals the mechanical advantage of the compound machine.

Learn more on compound machine here https://brainly.com/question/17712403

#SPJ1