an electromagnetic wave propagates in the y direction and the magnetic field oscillates parallel to the x axis the wavelength of the wave is 25 nm and the amplitude of the oscillation is 0.0015t which of the following equations best describes the magnetic field as a function of time at a particular position

Answer:

3 m/s

Explanation:

The slope is distance divided by time, also known as 'speed'.

15 meters / 5 seconds = 3 meters per second.

When a car's velocity is positive and its acceleration is also positive, the car's overall motion is speeding up in a forward direction.

Velocity is the measure of an object's speed in a specific direction, while acceleration is the measure of how quickly an object's velocity changes over time. So, if both the velocity and acceleration are positive, the car's speed is increasing in the forward direction. This means that the car is moving faster and faster in a forward direction.

Likewise, it can be said that the automobile develops an accelerated movement.

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Answer:

Explanation:

What type of repetitions are completed with an intentionally reduced range of motion?

Work is performed while initially lifting books off the floor. The work is due to gravity.

Answer:

* thermal energy

potential energy,

potential energy

Explanation:

The ship has various types of energy,

* thermal energy. This energy is associated with the temperature of the coal, the hotter the greater its internal energy,

* potential energy                                                                              this energy is stored in the constituent atoms within carbon

* potential energy. It is due to the configuration of the system, in this case the sun heats the coal

Sandra is on a rotating Ferris wheel. When Sandra is at the bottom of the Ferris wheel's rotation, then the magnitude of the normal force N exerted on her by her seat will be more as compared to her weight mg, i.e. N > mg. So option B. is correct.

A force that maintains an object rotating on its axis or moving into an angular path. Centripetal force is a vector quantity and the direction of the centripetal force is towards the center of its orbit. Here the normal force is more than the weight. Referring to Newton's second law of motion, with the presumption that the Ferris wheel moves at a constant velocity, the forces are

F = ma

Fc + N - w = 0

N = w - Fc

Where N is the normal force, w is the weight, and Fc is the centripetal force. We notice that the normal force is greater than the weight by a facet of the centripetal force.

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Answer:

The third one

Explanation:

it is better for vocab to be taught through natural learning and lessons, instead of one or the other.

Answer:

741.56 million km

The given amplifier circuit is a common-source amplifier. The equivalent circuit diagram of the amplifier includes a MOSFET N5486 transistor. We can determine the drain current (ID) and drain-source voltage (VDS) using the following equations:

1. Voltage at the source terminal (VS) is calculated using Ohm's law: VS = IS x RS.2. The drain current (ID) can be calculated using the equation ID = IS (1 + GVin), where Vin is the input voltage, G is the voltage gain, and IS is the current flowing through RD.Let's calculate the values of ID and VDS:

Given:- IS = VDD / RD = 10V / 10Ω = 1A- Vin = -1V / (1.5 x 10^6Ω + 0.47μF) = -0.6666667μA (using voltage divider rule)- G = -RD / RS = -10Ω / 3kΩ = -0.003333 Calculating ID:ID = 1A (1 - 0.003333 x 0.6666667 x 10^6)≈ 0.997A = 997mACalculating VDS:VDS = VDD - IDRD= 10V - 997mA x 10Ω≈ 10V - 9.97V≈ 0.03VTherefore, the values of ID and VDS are approximately ID = 997mA and VDS ≈ 0.03V, respectively.

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Answer:

i think its 1.5 m/s to the right?

Explanation:

The amount of energy required to raise the temperature of 5g of air by 10°C is 1,419.95 Joules

The formula for calculating the energy required to raise the temperature of 5g of air by 10°C is expressed according to the formula;

\(Q = mc\triangle \theta\)

m is the mass of the substance

c is the specific heat capacity of air

\(\triangle \theta\) is the temperature change

Given the following parameters

m = 5g

c = 1.0035J⋅g−1⋅K−1

\(\triangle \theta\) = 10 + 273 = 283K

Substitute the given parameters into the formula to have:

\(Q=5\times 1.0035 \times 283\\Q=1,419.95 Joules\)

Hence the amount of energy required to raise the temperature of 5g of air by 10°C is 1,419.95 Joules

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(a) To move the crate, you need to exert 7150 J of energy.

(b) The Vertical Movement of the Crate Will Take 6000 J of Work.

A frictional force is one that tends to oppose the motion of two bodies in contact.

The crate must be moved using both effort against resistance and effort across a distance of 5.0 meters.

Wr = Wf plus Wd.

Where Wr = work needed to move the crate, Wf = work done to overcome friction, and Wd = work needed to move the crate 5.0 meters.

Given are the following values: Wf = friction force distance = 2305 = 1150 J and Wd = force distance = 12005.0 = 6000 J.

Wr = 6000 + 1150 Wr = 7150 J when these values are substituted into equation 1.

The amount of effort needed to move the crate is therefore 7150 J.

(b) The amount of labor necessary to lift the crate vertically: mgh or

Vertically moving the crate requires the following amount of work: Wh. Equation 2 h = vertical height, W = weight of the block

Provided:W = 1200 N, h = 5.0 m

Equation 2 can be solved by substituting these numbers as follows: Vertical movement of the crate: work required = 12005

Moving the box upward will require 6000 J of work.  

The complete question is,

On the ground is a crate weighing 1200 N. How much effort is needed to move it (a) 5.0 m along the floor while battling a 230 N friction force; and (b) 5.0 m vertically?

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Answer:

The center of mass is a position defined relative to an object or system of object

To determine the longitudinal Young's modulus (E1) and longitudinal tensile strength (σ1t) of a unidirectional carbon/glass composite, we need the specific properties of the carbon and glass constituents, as well as the fiber volume fraction.

The longitudinal Young's modulus (E1) of the composite can be calculated using the rule of mixtures: E1 = Vcarbon * Ecarbon + Vglass * Eglass. where Vcarbon and Vglass are the volume fractions of carbon and glass fibers, respectively, and Ecarbon and Eglass are the Young's moduli of carbon and glass fibers, respectively. The longitudinal tensile strength (σ1t) can be determined using the following equation: σ1t = Vcarbon * σcarbon + Vglass * σglass. where σcarbon and σglass are the tensile strengths of carbon and glass fibers, respectively. The fiber volume fractions (Vcarbon and Vglass) depend on the specific composite fabrication process and design considerations. Once you provide the constituent properties (Ecarbon, Eglass, σcarbon, and σglass) and the fiber volume fractions, I can assist you in calculating E1 and σ1t.

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The frequency that the bad guy hear is 12000 hz when the police car is moving with speed of 80m/s.

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A brake is applied to a spinning wheel, initially moving counterclockwise, causing it to slow down with a constant angular acceleration of magnitude 5.40 rad/s2. Immediately after the brake is applied, the wheel rotates through 50.4 rad during a 4.00 s time interval. The angular speed (in rad/s) of the wheel at the end of this time interval is: 21.6 rad/s

The angular speed of the wheel at the end of the 4.00 s time interval can be calculated by using the equation for angular acceleration,

\(ω = ω0 + αt.\)

In this case, the initial angular speed of the wheel is 0 rad/s since it was at rest when the brake was applied, and the angular acceleration is 5.40 rad/s2.  

This gives us the equation\(ω = 0 + 5.40t.\)

Substituting the time of 4.00 s, we get \(ω = 5.40(4.00) = 21.6 rad/s.\)

This is the angular speed of the wheel at the end of the 4.00 s time interval. This can also be determined by using the equation for the change in angular displacement, \(Δθ = ω0t + ½αt2.\)

In this case, the initial angular displacement of the wheel is 0 rad and the angular acceleration is 5.40 rad/s2. This gives us the equation

\(Δθ = 0 + ½(5.40)(4.002) = 43.2 rad.\)

Since the wheel rotated through 50.4 rad during the 4.00 s time interval, the angular speed must be \(ω = Δθ/t = 50.4/4.00 = 12.6 rad/s.\)

The angular speed of the wheel at the end of the 4.00 s time interval is 21.6 rad/s, due to the constant angular acceleration of magnitude 5.40 rad/s2. The angular speed can also be determined by using the equation for the change in angular displacement, which gives 12.6 rad/s.

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1 kilogram equals 1,000 grams. Therefore, the correct option is (b) 1,000.

The amount of substance in an item or system is described by mass, which is a fundamental physical attribute of matter. It is a scalar quantity, which means it simply has magnitude and no direction. The kilogram (kg) is the unit of mass, defined as the mass of a specific platinum-iridium cylinder stored at the International Bureau of Weights and Measures in France. An object's mass is a measure of how much stuff it contains. Unlike weight, which is affected by gravitational forces, mass is an intrinsic feature of matter that does not vary with position. Inertia is a measure of an object's inertia, which is its resistance to changes in motion.

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Explanation:

No.  If the object stays at rest, its acceleration is 0.  So the acceleration must have changed.

Let's calculate the values based on the given information:

The area of the wooden block can be calculated by multiplying the length and width of one of its faces:

Area = Length * Width

Area = 40 cm * 20 cm

Area = 800 cm²

To convert to square inches, we can use the conversion factor 1 inch = 2.54 cm:

Area in square inches = Area in square centimeters / (2.54 cm/inch)²

Area in square inches = 800 cm² / (2.54 cm/inch)²

Area in square inches ≈ 124.03 in²

The volume of the wooden block can be calculated by multiplying its length, width, and height:

Volume = Length * Width * Height

Volume = 40 cm * 20 cm * 10 cm

Volume = 8000 cm³

To convert to cubic inches, we can use the conversion factor 1 inch = 2.54 cm:

Volume in cubic inches = Volume in cubic centimeters / (2.54 cm/inch)³

Volume in cubic inches = 8000 cm³ / (2.54 cm/inch)³

Volume in cubic inches ≈ 488.19 in³

The density of the wooden block can be calculated by dividing its mass by its volume:

Density = Mass / Volume

Density = 5 kg / 8000 cm³

To convert to grams per cubic centimeter (g/cm³), we can use the conversion factor 1 kg = 1000 g:

Density in g/cm³ = Density in kg/cm³ * 1000 g/kg

Density in g/cm³ = (5 kg / 8000 cm³) * 1000 g/kg

Density in g/cm³ ≈ 0.625 g/cm³

To convert to pounds per cubic inch (lb/in³), we can use the conversion factor 1 kg = 2.20462 lb and 1 inch = 2.54 cm:

Density in lb/in³ = Density in kg/cm³ * (2.20462 lb/kg) / (2.54 cm/inch)³

Density in lb/in³ = (5 kg / 8000 cm³) * (2.20462 lb/kg) / (2.54 cm/inch)³

Density in lb/in³ ≈ 0.036 lb/in³

Pressure is defined as force divided by area. In this case, we need more information to calculate the pressure. If the block is subjected to a specific force, we can divide that force by the appropriate surface area to find the pressure.

The pressure on the top surface of the wooden block depends on the force applied to it. Without information about the applied force, we cannot calculate the pressure.

Similarly, the pressure on the bottom surface of the wooden block depends on the force applied to it. Without information about the applied force, we cannot calculate the pressure.

The force on the top surface of the wooden block depends on the pressure applied and the surface area. Without information about the pressure or force applied, we cannot calculate the force.

The force on the bottom surface of the wooden block depends on the pressure applied and the surface area. Without information about the pressure or force applied, we cannot calculate the force.

Without the values for forces on the top and bottom surfaces, we cannot determine the difference between them.

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1. The area of the wooden block can be calculated using the formula for the surface area of a rectangular prism: SA = 2(lw + lh + wh), where l, w, and h are the length, width, and height of the block, respectively. Using the given dimensions, we can find the surface area in cm²:

SA = 2(40 × 20 + 40 × 10 + 20 × 10)

SA = 2(800 + 400 + 200)

SA = 2(1400)

SA = 2800 cm²

To convert cm² to in², we can use the conversion factor 1 in² = 6.45 cm². So, the area in in² is:

2800 ÷ 6.45 = 434.96 in² (rounded to two decimal places)

2. The volume of the wooden block can be calculated using the formula for the volume of a rectangular prism: V = lwh. Using the given dimensions, we can find the volume in cm³:

V = 40 × 20 × 10

V = 8000 cm³

To convert cm³ to in³, we can use the conversion factor 1 in³ = 16.39 cm³. So, the volume in in³ is:

8000 ÷ 16.39 = 487.61 in³ (rounded to two decimal places)

3. The density of the wooden block can be calculated using the formula: density = mass/volume. The mass of the block is given as 5 kg. To convert this to grams, we can use the conversion factor 1 kg = 1000 g. So, the mass in grams is:

5 kg × 1000 g/kg = 5000 g

Using the volume calculated in part 2, we can find the density in g/cm³:

density = 5000 g/8000 cm³

density = 0.625 g/cm³

To convert g/cm³ to lb/in³, we can use the conversion factor 1 g/cm³ = 0.0361 lb/in³. So, the density in lb/in³ is:

0.625 g/cm³ × 0.0361 lb/in³/g/cm³ = 0.0226 lb/in³

4. The pressure on the wooden block is given by the formula: pressure = force/area. To find the pressure, we need to know the force acting on the block. Since the block is simply resting on the tabletop, the force acting on it is due to its weight. Using the formula for weight: w = mg, where w is weight, m is mass, and g is the acceleration due to gravity (9.8 m/s²).

To find the weight in newtons (N), we can use the conversion factor 1 kg = 9.8 N. So, the weight of the block is:

5 kg × 9.8 N/kg = 49 N

Using the area of the block's base (40 cm × 20 cm = 800 cm²), we can find the pressure in N/cm²:

pressure = 49 N/800 cm²

pressure = 0.06125 N/cm²

To convert N/cm² to psi, we can use the conversion factor 1 psi = 6894.76 N/m². So, the pressure in psi is:

0.06125 N/cm² × (1 m²/10,000 cm²) × (1 psi/6894.76 N/m²) = 0.0089 psi (rounded to four decimal places)

5. The pressure on the top surface of the wooden block is the same as the pressure calculated in part 4: 0.06125 N/cm² or 0.0089 psi.

6. To find the pressure on the bottom surface of the block, we can use the formula: pressure = force/area. Since the bottom surface has the same area as the top surface, the pressure will also be the same: 0.06125 N/cm² or 0.0089 psi.

7. The force acting on the top surface of the wooden block is simply its weight, which we calculated to be 49 N in part 4.

8. The force acting on the bottom surface of the wooden block is also its weight, which we calculated to be 49 N in part 4.

9. The force on the bottom surface is equal in magnitude to the force on the top surface.

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Answer: False

Explanation: You'll be able continuously tell a blend, since each of the substances can be isolated from the group in numerous physical ways. You'll be able continuously get the sand out of the water by sifting the water absent. Some of the time a blend partitioned on their possess eg. water & cooking oil.

The wavelength of a 650.00 Hz sound in air at room temperature and pressure, where the velocity of sound is 344 m/s, is approximately 0.529 m.

Sound waves travel through a medium by creating compressions and rarefactions. The wavelength of a sound wave is the distance between two consecutive points that are in phase, such as two compressions or two rarefactions. To calculate the wavelength, we can use the formula: wavelength = velocity of sound / frequency.

In this case, the frequency of the sound is 650.00 Hz, and the velocity of sound in air at room temperature and pressure is 344 m/s. Plugging these values into the formula, we get: wavelength = 344 m/s / 650.00 Hz = 0.529 m.

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Answer:

I know I'm late but...

Explanation:

A mixture is the combination of two or more substances together. And I'm pretty sure that a mixture has no chemical substances. And mixtures can be physically separated.

Hope this helps you!

Stay safe and have a wonderful day/night!! :)

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Answer:

Friction

Explanation:

edge 2022

This method of transferring charge by rubbing objects is charging by friction.

Charging is defined as the phenomenon of transferring charge between two objects by supplying electrons between the objects.

Here,

The student done an experiment of rubbing a glass rod with a piece of silk and as a result, static charge is produced.

This is because, when the two objects are rubbed against each other, there occurs a friction between them. During this process, the glass rod that has free electrons that are freely bound to it will transfer its electrons to the piece of silk cloth. As a result, the glass rod will lose electrons and will have an electron deficiency, that means the glass rod becomes positively charged. At the same time, the silk cloth will acquire the electrons and the piece of silk becomes negatively charged.

This phenomenon of transferring charge between two objects when they are rubbed against each other is called charging by friction.

Hence,

This method of transferring charge by rubbing objects is charging by friction.

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At the time of the summer solstice, the noontime altitude of the sun is at its highest point, around 90°.

Altitude is the height above sea level. It is typically measured in either metres or feet. In aviation, altitude can also refer to the vertical distance between an aircraft and a certain reference point on the ground. Altitude can be used to determine the air pressure, temperature, and density of the air. Altitude can also be used to calculate the distance a plane can travel without refueling. Altitude can play an important role in the weather of an area, as air pressure and temperature tend to decrease with altitude. Altitude can also affect the type of vegetation found in an area. In mountain regions, the altitude can have a dramatic effect on the climate, creating distinct areas of vegetation and wildlife. Altitude can also affect the types of crops that can be grown in an area, depending on the air pressure, temperature, and precipitation.

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The volume occupied by the 24.2 g of argon gas at a pressure of 1.23 atm and a temperature of 318 K is 12.6 L.

Mass of argon, m = 24.2 g

Pressure, P = 1.23 atm

Temperature, T = 318 K

We need to find the volume occupied by the argon gas.

The volume occupied by a gas can be calculated using the ideal gas law, PV = nRT,

where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature.

We can rearrange this equation to solve for V:

V = nRT/P

We know the mass of argon, so we can calculate the number of moles using the molar mass of argon:

Ar molar mass = 39.948 g/moln = m/M = 24.2 g / 39.948 g/mol = 0.6069 mol

Now we can substitute the given values into the equation for V and solve for V:

V = (0.6069 mol)(0.08206 L atm/mol K)(318 K)/(1.23 atm) = 12.6 L

Therefore, the volume occupied by the 24.2 g of argon gas at a pressure of 1.23 atm and a temperature of 318 K is 12.6 L.

The volume occupied by the 24.2 g of argon gas at a pressure of 1.23 atm and a temperature of 318 K is 12.6 L.

We used the ideal gas law to calculate the volume of argon gas. We first calculated the number of moles of gas from the mass of argon, and then substituted the given values into the equation for V. The final answer is 12.6 L.

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Relation between Distance and acceleration

\(\\ \tt\longmapsto a=dv/dt\)

\(\\ \tt\longmapsto a=ds/dt^2\)

So

\(\\ \tt\longmapsto a\propto s\)

And

According to Newton's law

\(\\ \tt\longmapsto F=ma\)

\(\\ \tt\longmapsto F\propto m,a\)