in a mass spectrometer, once the particle leaves the velocity selector, the spectrometer uses a region with a uniform magnetic field to create a spectrum of particles that collide with a film in places that indicate the radius of the circle they are bent by the field. in terms of the exit velocity v, what is the radius r of a circular path of an electron with mass m?

Answer: According to http://www.scifun.org, "Bernoulli's Principle says that the pressure decreases inside a stream of flowing air. When the balloon begins to move out of this low pressure stream, the higher pressure of the air in the room pushes it back into the moving stream"

Answer:

The correct option is;

c. A set of magnets are placed in an electric field. As the current increases or decreases, the strength of the electric field changes, causing the magnet to be more or less moved by the field

Explanation:

A permanent magnet motor is an electric motor that utilizes permanent magnets combined with a coil of electric wire winding rather than there being only the the electric wire windings in the motor

The principle of operation of a permanent magnet motor involves the rotation of a magnetic rotor by the electromagnetic force generated from the outer stator coil when power is supplied to the stator windings from an external source.

The distance from the base of the cliff is 13.67 m.

The impact velocity of the block when it falls off the cliff is 15.3 m/s.

Initial velocity of the block, u = 15 m/s

Mass of the block, m = 5 kg

Coefficient of friction, μ = 0.3

Height of the cliff, h = 12 m

μmg = ma

a = μg

a = 0.3 x 9.8

a = 2.94 m/s²

At the initial surface,

Total energy of the block = 1/2mu² - mgh'

E = m(u²/2 - gh)

E = 5(15²/2 - 9.8 x 5)

E = 5 x 63.5

E = 317.5J

The impact velocity of the block when it falls off the cliff is given by,

1/2 mv² = mgh

v = √2gh

v = √(2 x 9.8 x 12)

v = √235.2

v = 15.3 m/s

The distance from the base of the cliff is given by,

R = v√(2h/g)

R = 15.3 x√(2 x 13/9.8)

R = 15.3 x 1.628

R = 13.67 m

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Answer:

a) the first vector has magnitude 58 cm and the angle is 15 measured clockwise from the positive side of the x-axis

b) the second vector, the magnitude is 55.7 cm and the angle is 35 half from the negative side of the x-axis in a clockwise direction

c) the magnitude is 54.2 cm with an angle of 18 measured counterclockwise from the x-axis

Explanation:

For this exercise we draw a Cartesian coordinate system in this system: East coincides with the positive part of the x-axis and North with the positive part of the y-axis.

a) the first vector has magnitude 58 cm and the angle is 15 measured clockwise from the positive side of the x-axis

b) the second vector, the magnitude is 55.7 cm and the angle is 35 half from the negative side of the x-axis in a clockwise direction

c) the magnitude is 54.2 cm with an angle of 18 measured counterclockwise from the x-axis

In the attachment we can see the representation of the three vectors

The stopper travels approximately 4.5 meters horizontally before hitting the ground.

We can use conservation of energy to solve this problem. At the highest point of the stopper's motion, all of its energy is in the form of potential energy, and at the lowest point (when it hits the ground), all of its energy is in the form of kinetic energy.

The potential energy of the stopper at the highest point is:

Ep = mgh

where m is the mass of the stopper, g is the acceleration due to gravity, and h is the height above the ground. Plugging in the values given in the problem, we get:

Ep = (0.150 kg) * (9.81 m/s²) * (2.3 m) ≈ 3.2 J

At the lowest point, all of the potential energy has been converted to kinetic energy:

Ek = (1/2) * mv²

where v is the speed of the stopper just before it hits the ground. Since the stopper is released from rest, we can use conservation of energy to equate the potential energy at the highest point to the kinetic energy just before hitting the ground:

Ep = Ek

mgh = (1/2) * mv²

Solving for v, we get:

v = √(2gh)

where h is the height from which the stopper was released. Plugging in the values given in the problem, we get:

v = √(2 * 9.81 m/s² * 2.3 m) ≈ 6.6 m/s

Now we can use the time it takes for the stopper to fall to the ground to calculate the horizontal distance it travels. The time is given by:

t = √(2h/g)

Plugging in the values given in the problem, we get:

t = √(2 * 2.3 m / 9.81 m/s²) ≈ 0.68 s

During this time, the stopper travels a horizontal distance given by:

d = vt

Plugging in the values we just calculated, we get:

d = (6.6 m/s) * (0.68 s) ≈ 4.5 m

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No; the graph fails the vertical line test.

option C.

The vertical line test is a graphical method used to determine if a given curve or graph represents a function.

It involves drawing a vertical line anywhere on the graph and observing whether the line intersects the curve at more than one point.

If a vertical line intersects the curve at only one point for all possible values of x, then the graph represents a function.

On the other hand, if a vertical line intersects the curve at more than one point for any value of x, then the graph does not represent a function.

So when we draw a single straight vertical line through the circular curve, it intersects at two points, so it does not show a function.

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The satement is true.

This comes from the fact that, according to Einstein:

and since c² is a very large number then, if we find a way to convert all the mass in energy a small amount will produce a large amount of energy.

After the collision between the bullet and the block, the speed of the block can be determined using the principle of conservation of linear momentum. The amplitude of the resulting simple harmonic motion can be determined by considering the energy conservation and the properties of the spring.

According to the principle of conservation of linear momentum, the total momentum before the collision is equal to the total momentum after the collision. The bullet and the block have the same mass, so the bullet's momentum before the collision is mv, and the total momentum after the collision is (m + m)V, where V is the speed of the block immediately after the collision. Setting these equal, we have mv = (m + m)V, which gives V = v/2.

After the collision, the block undergoes simple harmonic motion with the spring. The amplitude of the motion can be determined by considering the energy conservation. The energy of the system is initially in the bullet's kinetic energy, and after the collision, it is transferred to the potential energy of the spring. Therefore, we can equate the initial kinetic energy of the bullet (1/2)m\(v^{2}\) to the potential energy of the spring (1/2)k\(A^{2}\), where A is the amplitude of the motion. Solving for A, we have A = √(m\(v^{2}\)/k).

In summary, the speed of the block immediately after the collision is v/2, and the amplitude of the resulting simple harmonic motion is √(m\(v^{2}\)/k).

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Answer:

the answer should be in the explanation

Explanation:

Volcanic Eruption

Cracks in the earth’s crust are called faults. Volcanoes and earthquakes usually occur along these faults. A volcanic eruption can lead to landslides, ash falls, mud-flows, pyroclastic flows (can burn everything in their way), and steam explosions. okay for example volcanoes people have to keep a close eye out when they live by an active search up valcanic damage and you will see what i mean

Answer: Down below is the answer in complete sentences!

Explanation:

PART A:

Gravity and Acceleration are two additional forces acting upon the sled.

PART B:

Gravity will affect the sled by pulling it down, since the slope of the hill is negative.

Acceleration will affect the sled by gradually increasing it's speed, since the slope is downwards, which in addition to the initial force exerted plus gravity increases the speed, thus the sled accelerates.

Hello!

We can use the following relationship:

\(\Delta KE = W = F \cdot d\)

ΔKE = Change in Kinetic Energy (J)
W = Work done on object (J)

F = Force (N)

d = distance of which the force is applied to the object. (This is equivalent to the length of the gun barrel, or 0.8 m)

Also, recall that:
\(KE = \frac{1}{2}mv^2\)

m = mass of bullet (0.02 kg)

v = velocity of bullet (vfinal = 985 m/s, vinitial = 0 m/s)

We can now solve.

\(\Delta KE = F \cdot d\\\\KE_f - KE_i = F \cdot d\\\\\frac{1}{2}(0.02)(985^2) - \frac{1}{2}(0.02)(0^2) = (0.8)F\\\\9702.25 = 0.8F\\\\F = \frac{9702.25}{0.8} = \boxed{12127.813 N}\)

No, electrolyte doesn't conduct electricity when it's solid because it hasn't evolved into ions or charged particles.

Electrolytes are substances that are capable of conducting electricity in both their molten and aqueous states while also undergoing chemical alterations. The electrolyte conducts the electricity due to a dissociation into positively charged particles and negatively charged particles.  Electrolytes are substances which conduct electricity in both molten state and aqueous solution but not in solid state. Ions cannot move freely in the solid state because they are fixed. In contrast, ions can freely move in molten form. The ions of salt in the solid state are bonded with strong inter-particle forces. Hence, they are not free to move in a solid state and cannot conduct electricity. But Salt water is the best conductor. This is because salt in an ionic compound and can easily move electrons between positive and negative ions.

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Answer:

346k

Explanation:

x-273/373-273=y-32/212-32

x-273/100=162-32/180

180(x-273)=13200

x-273=13200/180

x-273=73

x=73+273

x=346k

Answer:

1.

a. T

b. F

c. T

d. F

e. T

2. Liquid, gas, solid

3. Water

4.

a. Solid

b. Gas

c. Water

5.

a. Add heat

b. Remove heat

c. Add heat

By finding the specific heat, we can expect that the material of the block is copper or silver (or a mix).

We know that we give 13,500 joules of energy to the metal block (which we assume has a mass of 1kg) and the temperature increases from 15°C to 60°C.

Then the increase is:

60°C - 15°C = 45°C

Then this metal has a specific heat of:

H = 13,500j/(45°C*1 kg) = 300 J/°C*kg

So it could be copper, which has a specific heat of 380J/°C*kg or Silver, which has a specific heat of 240 J/°C*kg (or a mix of these two).

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The frequency of radiation is inversely proportional to the wavelength. The wavelength of the light with the frequency 9.3 × 10¹⁸ Hz is 3.22 × 10³⁷ pm.

The number of oscillations or repeats of a cycle is defined as the frequency of light. All light waves travels at the same speed no matter its frequency. The light with a smaller frequency has a longer wavelength.

The equation connecting the frequency and wavelength of the light is given as:

c = νλ

ν - Frequency of radiation

λ - Wavelength of radiation

λ = 3.00 × 10⁸ / 9.3 × 10¹⁸

= 3.22 × 10²⁵ m

1 pm = 10⁻¹² m

So 3.22 × 10²⁵ m = 3.22 × 10²⁵ / 10⁻¹²

λ =  3.22 × 10³⁷ pm

Thus the wavelength of light is 3.22 × 10³⁷ pm.

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The inverse Fourier transformation is given by: f(t) = {2γ e^γt, if t < 0} {-2γ e^{-γt}, if t > 0}.

The inverse Fourier transformation of the given Lorentz distribution can be obtained using the following steps:

f(t) = (2π)^{1/2} ∫_{-∞}^{∞} F(ω)e^{-iωt} dω

Here, F(ω) = [γ/π(ω² + γ²)] and t is greater than and less than 0.

Therefore, we have to evaluate the integral using the residue theorem with two contours:

We will evaluate the integral for t < 0 and t > 0 separately.

1) Calculation for t < 0:

For t < 0, we have to evaluate the integral using a closed contour in the upper half-plane.

Let's consider a closed semicircle contour C_R in the upper half-plane. This contour encloses only one pole of F(ω) at z = -iγ.

Hence, the residue of F(ω) at z = -iγ is given by:

Residue of F(ω) at z = -iγ

                                = lim_{ω → -iγ} (ω + iγ)F(ω)

                                = lim_{ω → -iγ} [(ω + iγ)γ/π(ω² + γ²)]

                                = (-iγ)(-2iγ/π(2iγ))

                                = γ/π

So, we can write the integral as:

f(t) = (2π)^{1/2} [2πi Res(F(ω), -iγ)] = 2π^{3/2} Res(F(ω), -iγ)

According to the residue theorem, we can write:

f(t) = 2π^{3/2} Res(F(ω), -iγ)

     = 2π^{3/2} [γ/π e^{-i(-iγ)t}]

      = 2γ e^γt

2) Calculation for t > 0:

For t > 0, we have to evaluate the integral using a closed contour in the lower half-plane.

Let's consider a closed semicircle contour C_R in the lower half-plane. This contour encloses only one pole of F(ω) at z = iγ.

Hence, the residue of F(ω) at z = iγ is given by:

Residue of F(ω) at z = iγ

                                = lim_{ω → iγ} (ω - iγ)F(ω)

                                = lim_{ω → iγ} [(ω - iγ)γ/π(ω² + γ²)]

                                = (iγ)(-2iγ/π(-2iγ))

                                 = -γ/π

So, we can write the integral as:

f(t) = (2π)^{1/2} [2πi Res(F(ω), iγ)] = 2π^{3/2} Res(F(ω), iγ)

According to the residue theorem, we can write:

f(t) = 2π^{3/2} Res(F(ω), iγ)

     = 2π^{3/2} [-γ/π e^{iγt}]

    = -2γ e^{-γt}

Therefore, the inverse Fourier transformation of the Lorentz distribution F(ω) = [γ/π(ω² + γ²)] is:

f(t) = {2γ e^γt, if t < 0} {-2γ e^{-γt}, if t > 0}

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Complete question:

Treating the cases where t is less than and greater than 0 differently when evaluating the integral by residues, solved for the inverse Fourier transformation \(f(t) = (2 \pi)^{\frac{1}{2} } \int\limits^\infty_\infty^{-} {F(\omega)e^{-i\omegat} } \, d\omega\) of Lorentz distribution

\(F (\omega)= (\frac{\gamma}{\pi}) (\frac{1}{(\omega^{2} + \gamma^{2} )} )\)

A homogeneous mixture is made by dissolving 25.6 grams of solid barium iodide in 1000 g of water. This is an example of a homogeneous solid mixture. In the mixture, barium iodide would be called the solute, and water would be called the solvent.

A solvent is simply a substance that can dissolve other molecules and compounds, which are known as solutes. A homogeneous mixture of solvent and solute is called a solution, and much of life’s chemistry takes place in aqueous solutions, or solutions with water as the solvent.

Because of its polarity and ability to form hydrogen bonds, water makes an excellent solvent, meaning that it can dissolve many different kinds of molecules. Most of the chemical reactions important to life take place in a watery environment inside of cells, and water's capacity to dissolve a wide variety of molecules is key in allowing these chemical reactions to take place.

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Answer:

Power = 2.45Kw or 2450 Watts.

Explanation:

Given the following data;

Mass, m = 250kg

Height, h = 2m

Time, t = 2secs

We know that acceleration due to gravity, g is equal to 9.8m/s²

Power can be defined as the energy required to do work per unit time.

Mathematically, it is given by the formula;

\( Power = \frac {Energy}{time} \)

But Energy = mgh

Substituting into the equation, we have

\( Power = \frac {mgh}{time} \)

\( Power = \frac {250*9.8*2}{2} \)

\( Power = \frac {4900}{2} \)

Power = 2450 Watts

To convert to kilowatt (Kw), we would divide by 1000

Power = 2450/1000

Power = 2.45Kw.

Therefore, the average power output of the weightlifter is 2.45 Kilowatts.

The average power output of the weight lifter who can lift the given mass is 2450 Watts.

Given the data in the question;

Power is the amount of energy transferred per unit time. It is expressed as:

\(P = \frac{W}{\delta t}\)

Where W is work done and t is elapsed time.

So, we find the work done

Work done = Force × Displacement

Since Force = Weight = m × g

Where g is acceleration due to gravity ( \(9.8m/s^2\) )

Hence

\(Work\ done = mg * d\\\\Work\ done = 250kg\ *\ 9.8m/s^2\ *\ 2.0m\\\\Work\ done = 4900kg.m^2/s^2\)

We substitute our value into the previous equation

\(P = \frac{Work\ done}{\delta t}\\\\P = \frac{4900kg.m^2/s^2}{2.0s} \\\\P = 2450kg.m^2/s^3\\\\P = 2450J/s\\\\P = 2450W\)

Therefore, the average power output of the weight lifter who can lift the given mass is 2450 Watts.

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Answer:

C. Heat

Explanation:

HEAT is energy that is transferred due to a difference in temperatures.

I hope it helps! Have a great day!

Answer:

\(9.5\; {\rm m}\).

Explanation:

Let \(u\) and \(v\) denote the velocity of this hockey player before and after stopping, respectively. The question states that \(u = 9.5\; {\rm m\cdot s^{-1}}\) and implies that \(v = 0\; {\rm m\cdot s^{-1}\) since the hockey player has come to a stop.

The duration of this acceleration is \(t = 2\; {\rm s}\).  

Since the acceleration of this hockey player was constant, SUVAT equation would apply. In particular, the SUVAT equation \(x = (1/2)\, (v + u) \, (t)\) gives the displacement \(x\) of this hockey player during that \(2\; {\rm s}\) of acceleration:

\(\begin{aligned} x &= \frac{1}{2}\, (9.5\; {\rm m\cdot s^{-1}} + 0\; {\rm m\cdot s^{-1}})\, (2\; {\rm s}) = 9.5\; {\rm m} \end{aligned}\).

In other words, this hockey player would have travelled \(9.5\; {\rm m}\) while stopping.

Answer:

your answer is A

Explanation:

brainliest plzzzz

Answer:

c is the correct answer

The savings in kWh from replacing the lights with a fluorescent bulb in one year is 496.4 kWh/yr.

Saving power = 60 w per night .

340 J/s ( 4h/d)(3600 sec/h) (365 d/yr)

( 1kWh/ 3.6 x 10 6 J)

= 496.4 kWh/yr

The capacity to perform work is a definition of energy. When energy is released, a body performs the same amount of work as it has energy stored. Scalar energy is a quantity. Joule is the SI unit for energy. 1 joule of energy is the amount of energy required to perform one joule of work.

According to the law of conservation of energy, energy can only be changed from one form to another rather than being created or destroyed. Unless energy is added from the outside, a system always has the same amount of energy.

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The temperature of sweat when it is first produced is two degree more than normal temperature of the body because sweat removes extra heat from the body.

Our body begins to sweat when our body temperature goes up more than two degrees from normal which is 102 degree F. When you sweat, your body temperature drops back to the safe range which is 96.6 to 100.6 degrees F.

So we can conclude that The temperature of sweat when it is first produced is two degree more than normal temperature of the body because sweat removes extra heat from the body.

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I= V/R

R= V/I these are the other two quantities

Answer:

As it revolves around a planet

Explanation:

Earth has a gravitational force right. Well, they have different types of forces as well including centripetal force. Centripetal acceleration will be experienced by an object or a space probe when it is in a circular motion. This happens when a dark mater revolves around another darkmater in this case earth.

Answer:

The correct answer is A. :)

Explanation:

Edge 2021

The potential across the capacitor at t = 1.0 seconds, 5.0 seconds, 20.0 seconds respectively is mathematically given as

Question Parameters:

A 1. 0 μf capacitor is being charged by a 9. 0 v battery through a 10 mω resistor.

at

Generally, the equation for the Voltage is mathematically given as

v(t)=Vmax=(i-e^{-t/t})

Therefore

For t=1

V=5(i-e^{-1/10})

t=0.476v

For t=5s

V2=5(i-e^{-5/10})

t=1.967

For t=20s

V2=5(i-e^{-20/10})

V2=4.323v

Therefore, the values of voltages at the various times are

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Complete Question

A 1.0 μF capacitor is being charged by a 5.0 V battery through a 10 MΩ resistor.

Determine the potential across the capacitor when t = 1.0 seconds, 5.0 seconds, 20.0 seconds.