a capacitor has a capacitance of 1.9 pf what potential difference

Answer:

The linear speed of the car is approximately 27.30 m/s

Explanation:

The question parameters are;

The mass of the person on the rollercoaster, m = 57.0 kg

The radius of the rollercoaster track, r = 42.7 m

The normal force felt by the person, F = 995 N

The centripetal force acting on the person keep the circular motion is given by the following equation;

\(Centripetal \, force \ F_c = \dfrac{m \times v^2}{r}\)

Where;

v = The linear velocity of motion = The linear speed of the car

The centrifugal force, F, is the force normal force felt by the person and is equal to the centripetal force, therefore, we have;

\(Centripetal \, force \ F_c = Centrifugal \, force \ F = \dfrac{m \times v^2}{r}\)

From which we have;

\(F = 995 = \dfrac{57 \times v^2}{42.7}\)

\(\therefore v = \sqrt{\dfrac{995 \times 42.7}{57} } \approx 745.38\)

The linear speed of the car = v ≈ 27.30 m/s

The angular speed of the car, ω = v/r ≈ 27.30/42.7 ≈ 0.639 rad/s

Answer: 18.1 m/s

Explanation:

Answer:

1226.8

I hope this helps!!!

The claim can be Cosmetics, hygiene, and cleaning product emissions may be dangerous.

Evidence 1: Effect of Air Quality

Volatile organic compounds (VOCs), including formaldehyde, benzene, and toluene, can be found in a variety of cosmetic, hygiene, and cleaning goods. These VOCs have the potential to evaportate and cause indoor air pollution.

Environmental impact is evidence number two

Cosmetics, hygiene, and cleaning goods can have a detrimental environmental impact during manufacturing, usage, and disposal. Microplastics and certain chemicals are among the substances present in these items that may find their way into rivers and endanger aquatic life.

Evidence 3: Worker health effects

Occupational health risks can be present for workers who manufacture and produce hygiene, cleaning, and cosmetic items.

Reasoning: It is clear from the research that emissions from cosmetic, hygiene, and cleaning goods have the potential to be harmful.

Thus, this way, harmful are the emissions from cosmetics, hygiene, and cleaning products.

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The goal of the lab is to investigate the relationship between density and buoyancy. The lab aims to determine how different objects or substances behave in fluids and understand the principles of density and buoyancy through experimental observations and calculations.

The goal of the lab or the question being addressed in the lab report is to investigate and understand the concepts of density and buoyancy. Density refers to the measure of how much mass is contained within a given volume, while buoyancy refers to the upward force exerted on an object submerged in a fluid, such as water or air.

The lab report aims to explore the relationship between density, mass, and volume by conducting experiments and analyzing data. It may involve measurements of different objects or substances, determining their masses and volumes, and calculating their densities. The report may also involve experiments related to buoyancy, such as determining the buoyant force on an object and investigating factors affecting buoyancy.

By conducting the lab and analyzing the obtained results, the lab report aims to provide a deeper understanding of these fundamental concepts in physics and to demonstrate the principles of density and buoyancy through practical experimentation. The report may also include discussions of the significance and applications of density and buoyancy in various fields, such as engineering, architecture, and fluid dynamics.

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The magnitude of the velocity of the bar at an instant when the induced current in the circuit is counterclockwise and equal to 1.73 A is 24.62 m / s

I = B l v / R

I = Induced current

B = Magnetic field

l = Length of bar

v = Velocity

R = Resistance

I = 1.73 A

B = 1.34 T

l = 0.293 m

R = 5.55 Ω

v = I R / B l

v = ( 1.73 * 5.55 ) / ( 1.34 * 0.293 )

v = 9.6 / 0.39

v = 24.62 m / s

Therefore, the the magnitude of the velocity of the bar is 24.62 m / s

The given question is incomplete. The complete question is :

A 0.293m -long bar moves on parallel rails that are connected through a 5.55 Ω resistor, as shown in the following figure (Figure 1) , so the apparatus makes a complete circuit. You can ignore the resistance of the bar and rails. The circuit is in a uniform magnetic field 1.34T that is directed into the plane of the figure. At an instant when the induced current in the circuit is counterclockwise and equal to 1.73 A, what is the magnitude of the velocity of the bar?

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The pattern of spatial distribution that decreases competition for resources between individuals of the same species and is most common for plants or animals that have and defend territories is called uniform or regular distribution.

In a uniform distribution, individuals are evenly spaced throughout their habitat, which helps minimize competition and ensures access to necessary resources like food, water, and shelter. This pattern is most often observed in species that exhibit territorial behavior or where resources are limited. In the animal kingdom, territorial animals such as birds and mammals often establish and maintain specific areas for nesting or breeding purposes. By defending their territories, these animals can reduce competition and enhance their survival chances.

In the plant world, uniform distribution is also common, particularly in areas with limited resources like nutrients and water. Plants might release chemicals to inhibit the growth of neighboring plants, ensuring sufficient space and resources for their own growth. Overall, uniform distribution is an effective strategy for species to minimize competition and maximize their chances of survival in environments where resources are scarce or where territorial behavior is essential for reproduction and survival.

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Answer:

C.

Explanation:

Answer:2n

Explanation:10/5=2

Answer:

Waves interact with objects and other waves.

Explanation:

Answer:

0.4 m/s2

Explanation:

mass: 25kg

net force: 10 N

acceleration: ?

net force ÷ by mass= acceleration

10 N ÷ 25 Kg = 0.4 m/s2

Part A: Differential equation of temperature Assuming the temperature T of the chili follows Newton's Law of Cooling, we know that the rate of change of the temperature of an object, T, is proportional to the difference between T and the temperature of its surrounding environment, and can be represented by this equation:

dT/dt = k(T - Ts)

where k is the cooling coefficient and Ts is the temperature of the surrounding environment.

Part B: Temperature of the chili after 4 hours to find the temperature of the chili after 4 hours, we need to use the following equation:

T(t) = Ts + (T0 - Ts)e^(-kt)

where T0 is the initial temperature of the chili and t is the time in hours.

We know that T0 = 21°C, Ts = -16°C, and T(2) = 5°C.

Substituting these values into the equation, we get:

5 = -16 + (21 + 16)e^(-k * 2)37 = 37e^(-2k)e^2k = 1/2k = ln(1/2)/(-2)k ≈ 0.3466

Substituting k into the equation and solving for T(4), we get:

T(4) = -16 + (21 + 16)e^(-0.3466 * 4)T(4) ≈ -9.80°C

Therefore, the temperature of the chili after 4 hours is approximately -9.80°C.

Part C: The time at which the chili's temperature will be -12°C

We need to solve the equation T(t) = -12 for t:

T(t) = Ts + (T0 - Ts)e^(-kt)-12

= -16 + (21 + 16)e^(-0.3466t)4

= 37e^(-0.3466t)e^0.3466t

= 37/4t = ln(37/4)/0.3466t ≈ 7.14

Therefore, the chili's temperature will be -12°C after approximately 7.14 hours.

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Answer:

Wave speed and wavelength

Explanation:

The spring constant of each individual spring is approximately 588 N/m.

To find the spring constant of the combination, we can use Hooke's Law, which states that the force exerted by a spring is directly proportional to the displacement of the spring from its equilibrium position. The equation for Hooke's Law is given as:

\(F = -kx\)

Where F is the force applied to the spring, k is the spring constant, and x is the displacement from the equilibrium position.

For the combination of springs, we can treat them as a single spring with an equivalent spring constant. Since the springs are hooked end to end, the total displacement of the combination is the sum of the individual displacements.

Given that the combination of springs stretches 0.15 m beyond its relaxed length with a 6.0-kg brick, we can calculate the spring constant of the combination using the formula:

\(F = k_combined * x_combined\)

Where F is the weight of the brick (mg) and x_combined is the total displacement of the combination.

\(F = (6.0 kg) * (9.8 m/s^2) = 58.8 N\)

\(x_combined = 0.15 m\)

Therefore, we can rearrange the equation to solve for the spring constant of the combination:

\(k_combined = F / x_combined\)

\(k_combined = 58.8 N / 0.15 m ≈ 392 N/m\)

The spring constant of the combination is approximately **392 N/m**.

Now, let's calculate the spring constant of each individual spring. Since the top spring stretches 0.10 m, we can use the same equation:

\(k_top = F / x_top\)

\(F = (6.0 kg) * (9.8 m/s^2) = 58.8 N\)

\(x_top = 0.10 m\)

\(k_top = 58.8 N / 0.10 m = 588 N/m\)

The spring constant of each individual spring is approximately 588 N/m.

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The speed of satellite a is, 10000 m/s and the mass of satellite b is twice of satellite a but it does not affect the speed of satellite it will move at the same speed.

The amount of the shift in approach per unit of time or the size of the displacement over time for an object can be used to describe speed, which would be a scalar quantity in everyday language and kinematics.

The maximum speed that can be maintained when a time period grows closer to zero is the starting speed.

By dividing the object's distance traveled by the duration of the interval, the mean pace of the object for the given period of time is calculated. Speed and velocity are not always the same thing.

The mass of the satellite will not affect on the speed of satellite in the space, so the satellite b will have the same speed because they are moving in an orbit.

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Potential temperature is the temperature that a parcel of dry air would have if it were adiabatically moved to a pressure level of 1000 millibars. It is an important measure in atmospheric sciences.

We have given some air parcels and their temperature, and we need to find their potential temperature. Let’s begin:26) Given,

Temperature (T) = 14 °C

= 14+ 273

= 287 K

P0 = 1000 mb

P = 900 mb

Now, let’s find the potential temperature:

Potential temperature = T(P0/P)^k Where, k = 0.286

Potential temperature = 287(1000/900)^0.286

Potential temperature = 303.59 K27) Given,

Temperature (T) = 8°C = 8+ 273 = 281 KP0 = 1000 mb

P = 775 mb

Now, let’s find the potential temperature:

Potential temperature = T(P0/P)^k Where, k = 0.286

Potential temperature = 281(1000/775)^0.286

Potential temperature = 313.98 K28)

Given, Temperature (T) = −15°C = −15+ 273 = 258 KP0 = 1000 mbP = 500 mb

Now, let’s find the potential temperature:

Potential temperature = T(P0/P)^k Where, k = 0.286

Potential temperature = 258(1000/500)^0.286

Potential temperature = 399.06 K29)

There are various ways in which the potential temperature can be increased: Adding heat to the parcel, compressing the parcel adiabatically, increasing the pressure, adding moisture, or any combination of the above factors may increase the potential temperature.

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Tangential speed vT, for the satellite that orbits the earth from a distance 3R is : vT= v0/3.

Linear component of the speed along any point of the circle involved in the circular motion is called tangential speed.

Given;

Vo is Speed ; R is the distance of center of the earth

Fo is the force exerted on satellite

Let vT be tangential speed

For the satellite, gravitational force (Fg)is equal to centripetal force(Fc),

Hence, Fg = Fc = Fo

GMm/R² = mvo/3R²

Thus, GM = (v0)²R

As given, R = 3R

So, GMm/3R² = m(v0)²/3R

GMm/3R² = m(vT)²/3R

So, GM= 9R * (vT)²

Now, (v0)²R = 9(vT)²R

(vT)²= (v0)²/9

So, vT= v0/3

Therefore, the tangential speed, vT, for the satellite that orbits the earth from distance 3R is v0/3.

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Answer:

Below

Explanation:

To find how fast the bullet is travelling you can use this formula :

     Vf^2 = Vi^2 + 2ad

     Vf^2 = 37.4^2 + 2 (-9.8)(69.9)

              = 1398.76 -1370.04

              = 28.72 m/s

Square this number

     = 5.3591044027897

Therefore the bullet is travelling at 5.36 m/s when it is 69.9 m in the air.

Hope this helps! Best of luck <3  

Answer:

Yes you  worked

Explanation:

You may have not seen a good outcome but you did put effort in.

When a force is applied on the car and it doesn't move then it simply means

work wasn't done.

The formula for work is given below:

Work = Force ₓ Displacement

For work to have been done , the applied force must cause the object to

change its position(displacement).

In situations where the force applied doesn't cause a change in position then work can't be calculated. This means no work was done on the car despite the applied force causing him to be tired.

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Answer:

The momentum of the falling apple is transferred to the Earth.

Explanation:

Answer:

The energy is not destroyed, the energy has been transformed into another kind of energy, in this case to heat with energy of 0,002 J

Explanation:

One of the fundamental principles of physics states that energy is neither created nor destroyed, it is only transformed.

In this case, when the ball with an energy of 1 J bounces on the ground, it loses an energy equivalent to 1-0.998 J = 0.002 J. This energy of 0.002 J is not destroyed in the process, but is transformed into another type of Energy. In this case, said energy has been converted to heat. A heat equivalent to 0.002 J of energy.

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

Translation to spanish

Uno de los principios fundamentales de la física afirma que la enegía no se crea ni se destruye, sólo se transforma.

En este caso, cuando la pelota con una energía de 1 J rebota en el suelo pierde una energía equivalente a 1-0,998 J = 0,002 J. Esta energía de 0,002 J no se destruye en el proceso, sino que se transforma en otro tipo de energía. En este caso dicha energía se ha convertido en calor. Un calor equivalente a 0,002 J de energía.

1). Wrap more turns of the wire around the nail.

2). Increase the electrical current through the wire. (Do this by inserting another battery in the circuit, in series with the first one.)

To solve this problem, we need to use the thin lens equation: 1/f = 1/di + 1/do. Where f is the focal length of the lens, di is the image distance, and do is the object distance.

For the converging lens, f = 5.2 cm, do = -10.2 cm (since the object is to the left of the lens), and di is unknown. Solving for di, we get:

1/5.2 = 1/di + 1/-10.2

di = -3.4 cm

The negative sign for di indicates that the image is formed on the same side of the lens as the object, which means it is a virtual image.

Now, the diverging lens is located 24.7 cm to the right of the converging lens, so the virtual image formed by the converging lens acts as the object for the diverging lens.  Using the same thin lens equation, we can find the final image distance:

1/-14.5 = 1/di + 1/3.4

di = -4.9 cm

Again, the negative sign indicates that the image is virtual, which means it is located on the same side of the lens as the object. The final image is located 4.9 cm to the left of the diverging lens.

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Answer:

Newton believed that mass tells gravity how much force to exert. Einstein believed that mass tells space-time how to curve.

Explanation:

Isaac Newton believed that bodies on earth had a force of gravity pulling them down as a result of their masses.

Albert Einstein believed that the bodies were not pulled down but were moving around in a circular sphere/manner.

This confirms Newton believing that mass tells gravity how much force to exert and Einstein believing that mass tells space-time how to curve.

Answer:

first one is for the assignment second is for the quiz

Explanation:

Assignment - C.

Quiz - D.

Initial temperature (I.T.) is described in 21 CFR 113.3(l) as the average temperature of the contents of the coldest container to be processed at the start of the thermal processing cycle, as determined following thorough stirring or shaking of the filled and sealed container.

To calculate the final heat of your substance, add the temperature change to the starting point. If your water started off at 24 degrees Celsius, for instance, the end temperature would be 24 + 6, or 30 degrees Celsius. Where the velocity is unknown, one uses the equation: KE=12mv2 K E = 1 2 m v 2 to calculate the initial kinetic energy. The final Potential Energy is calculated using the formula: PE=mgh P E = m g h, where h is the height of 50 meters.

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Answer:

The SI base units are the standard units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now known as the International System of Quantities: they are notably a basic set from which all other SI units can be derived.

Explanation:

Answer:

€●●●○○○●□□□¤¤¤¤▪︎▪︎▪︎▪︎☆☆☆☆○{{}}■■○•°°°°°•○|■¥¥¥¥¥

Answer:

Coording metal is a physical change.

Assuming the speed of the wave is taken as the speed of sound wave in air that is 340 m/s. The wavenumber for 262 Hz is 0.77 m⁻¹ and that for 294 Hz is 0.86 m⁻¹ .

The wave number of a wave is the number of wavelengths passing through unit length. It is the inverse of wavelength.

Wave number is directly proportional to the frequency.

The relation between frequency and wave number is written as:

wave number = ν/v

where v is the speed of the wave and ν is the frequency.

The wave number of the wave with the frequency of 330 Hz is then,

330 Hz/ 340 m/s = 0.97  m⁻¹

and for the remaining frequencies:

349 Hz /340 m/s =  1.052  m⁻¹

for 392 Hz,

392 Hz/340 m/s = 1.15  m⁻¹

For 440 Hz,

440 Hz/340 m/s = 1.29  m⁻¹.

for 494 Hz,

494 Hz/340 m/s = 1.45  m⁻¹

and  for 523 Hz,

523 Hz/340 m/s = 1.53  m⁻¹

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