two blocks connected by a cord passing over a small, fric- tionless pulley rest on frictionless planes (fig. p5.90). (a) which way will the system move when the blocks are released from rest? (b) what is the acceleration of the blocks? (c) what is the tension in the cord?

Answer:65.28

Explanation:

A long string has a standing wave with 2 loops at a frequency. The speed of the waves in the string is 65.28 m/s

The frequency is the number of cycles completed per second.

Given the length of the string l = is 1.70 m, no of loops n =2, frequency of wave f =38.4 Hz, then the speed of the waves is

f = nv /2l

Substitute the following values, we get

v = 38.4 x 2 x 1.70 / 2

v =65.28 m/s

Thus, the speed of the waves in the string is 65.28 m/s.

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The capacitance characteristics allow to find that the response to increase the separation of the plates are:

A capacitor is a system formed by two parallel plates charged with opposite charge that stores energy, the capacitance is

            C =     \(\frac{Q}{\Delta V} = \epsilon_o \frac{A}{d}\)  

Where C is the capacitance, Q the stored charge, ΔV the voltage difference, A the area of ​​the plates, d the separation between them and ε₀ the dielectric permittivity (ε₀ = 8.85 10⁻¹² \(\frac{C^2}{N \ m^2 }\))

In this case the capacitor is charged and then the separation of the plates increases, the different amounts are affected:

In conclusion of the characteristics of capacitance, let us find that the response for increased separation of the plates are:

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1) The direction it points depends on the direction of the electric current in the wires.

2) The magnetic field lines in the region would form circles around each individual wire carrying current.

3) This is because of the right-hand rule

The magnetic field produced by the electric current forms a circular magnetic field around the wire in accordance with the right-hand rule, which is applicable to conventional current flow.

The current's flow direction determines the direction of the magnetic field lines. The curled fingers of your right hand, which is holding the wire with your thumb pointing in the direction of the current flow, would point in the direction of the magnetic field.

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Answer:

4,050

Explanation:

I did the math.

Answer:

its 4,050

Explanation:

i just took the test 100%

To calculate the vertical displacement as the object exits the plates, we once more use the kinematic equations.2.73 106 m is the size of the vertical displacement.

The electron experiences an upward force as it moves between the charged plates and narrowly avoids striking the top plate.It barely misses the tongs as it rises by a minuscule inch.

The electron narrowly escapes impacting the top plate as it travels between the charged plates and feels an upward pull. It travels 0.005 meters in the y direction.

vn = 1.60 x108 The electron is travelling at a speed of 2 m in the direction of x.

Time of flight is calculated as t = d/ v, where d is the distance and v is the speed.

t=2m/ 1.60×10⁸ms⁻¹ =1.25×10⁻⁸s

The y-velocity is initially zero.

Currently, an is displacement and y=vnt + 1/2 at2

So, 0.005m= 1/2 a(1.25×10⁻⁸s)

a=6.40×10¹³ ms⁻²

Additionally, a= F/m = eE/m.

E= (9.1×10⁻³² kg)(6.40×10¹³ ms⁻²)

1.60×10⁻¹⁹ C

=364NC⁻¹

Due to its slower acceleration and higher mass, the proton won't hit any plates.To calculate the vertical displacement as the object exits the plates, we once more use the kinematic equations.

y = 1/2at2 = 1/2 eE/mp (1.25 10 8 s)2 = 2.73 10 6 m

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car's maximum cornering speed on a rainy day when the coefficient of static friction has been reduced by 50% is 27.58 m/s

Car's maximum speed at dry Sunny day,

Vs = √μrg = 39 m/s

Speed at rainy day, μ becomes 0.5μ

Vr = √(0.5*μ*r*g) =√(0.5) * (39) = 27.57716

Vr = 27.58 m/s

An object experiences static friction when a force is applied to it; as a result, the object resists the applied force and stays at rest until static friction is removed. In kinetic friction, the frictional force opposes an object's motion. An item is kept at rest by the force of static friction. The phrase "static friction" can be defined as "the friction people perceive when they attempt to move a stationary object on a surface, but without actually causing any relative motion in between  surface and the body it is on. A force acting in opposition to the direction of a moving body on the surface is felt.

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The wavelength at which this star's spectrum peaks in brightness is approximately 5420 angstroms.

The wavelength at which a star's spectrum peaks in brightness is determined by its surface temperature. In this case, the star has a surface temperature of 5350 K. To determine the wavelength at which its spectrum peaks, we need to use Wien's law, which states that the peak wavelength is inversely proportional to the temperature.

The formula for Wien's law is:

λ(max) = 2.898 x 10^-3 mK / T

where λ(max) is the peak wavelength in meters, T is the temperature in Kelvin, and 2.898 x 10^-3 mK is the Wien's constant.

To convert meters to angstroms, we can multiply the result by 10^10.

Plugging in the given temperature of 5350 K, we get:

λ(max) = 2.898 x 10^-3 mK / 5350 K
λ(max) = 5.42 x 10^-7 meters

Multiplying by 10^10 to convert to angstroms, we get:

λ(max) = 5420 angstroms

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Answer:

b

Explanation: friction is like a force to something to react

Answer:

The gravitational force between Saturn and it's moon is 1.62 m/s ^2

Explanation:

google it

Answer:

Explanation:

C bro

Answer:

d

Explanation:

i looked it up

Answer:

100m/s

Explanation:

speed of wave=frequency × wave length

=10 × 10

=100m/s

Answer:

100 m/s

Explanation:

Formula :

Solving using the given values :

Explanation:

Given data

velocity v= 25m/s

The time it takes to put on brake t= 0.3s

the distance covered when the  brake was put on is

v=s/t

s= v*t

s= 25*0.3s

s= 7.5m

hence the distance covered is 7.5m

Also the rate of decrease in aceleration is 5m/s^2

we can also calculate the distance covered at this rate

v^2=u^2+2as

25^2= 0+2*5*s

625=10s

divide both sides by 10

s=625/10

s= 62.5m

The total  distance covered between putting on the brakes and decelareation is  7.5+62.5= 70m

Given that the tree is 75m ahead, the car would not hit the tree

Answer:hhahe

Explanation:

If you an unable to lift a body, the weight of the body is responsible.

The term weight refers to the force that attracts an object to the center of the earth. We know that the weight of a body is obtained as the product of mass and the acceleration due to gravity.

The mire weighty an object is, the more difficult it is to lift the body. This implies that; if you an unable to lift a body, the weight of the body is responsible.

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Missing parts;

You are unable to lift an object. Which property makes the object difficult to lift?

A. density

B. mass

C. volume

D.weight

The body's acceleration when the velocity is zero can be found by evaluating the derivative of the velocity-time graph at those points. The acceleration at each instance when the velocity is zero will give the body's instantaneous acceleration at that particular moment.

When the velocity of a body is zero, it means that the body is momentarily at rest. In such cases, we can analyze the body's motion by examining its velocity-time graph.

The points on the graph where the velocity is zero correspond to the instances when the body changes its direction of motion or comes to a temporary halt.

To find the body's acceleration at those instances, we need to calculate the derivative of the velocity-time function. The derivative gives us the rate of change of velocity with respect to time, which represents acceleration.

By evaluating the derivative at the points where the velocity is zero, we can determine the body's acceleration at those specific moments.

It's important to note that the body's acceleration when the velocity is zero can vary depending on the shape of the velocity-time graph and the specific behavior of the body's motion.

The acceleration may be positive if the body is decelerating, negative if it's accelerating in the opposite direction, or zero if the body maintains a constant velocity.

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Answer:

0.25

Explanation:

Answer:

50%

Explanation:

From the question given above, the following data were obtained:

Volume of solution (acetic vinegar + water) = 300 mL

Volume of solute (acetic vinegar) = 150 mL

Percentage of solute (acetic vinegar) =.?

We, can determine the percentage of the solute (acetic vinegar) in solution by doing the following:

Percentage of solute = volume of solute / Volume of solution × 100

Percentage of solute = 150/300 × 100

Percentage of solute = 50%

Thus, the percentage of the solute in the solution is 50%

The energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm, the correct answer  is a) 4.85 x \(10^{-19}\) J.

According to the equation E = hc/λ, the energy of a photon of light can be calculated.

Where E is the energy of the photon, h is Planck's constant, c is the speed of light, and λ is the wavelength of the light. Using this formula, we can calculate the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm as follows:

E = hc/λ

Where \(h = 6.626 * 10^{-34}\)J.s, \(c = 2.998 * 10^8\) m/s, and λ = 410.1,  \(nm=410.1 * 10^{-9}\) m

\(E =\frac{ (6.626 * 10^{-34}) * (2.998 * 10^{8}) }{ (410.1 * 10^{-9} )}\)

\(E = 4.855 * 10^-19\)

Therefore, the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm, the correct answer is a) 4.855 x \(10^{-19}\) J.

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The concentration of A after 495 seconds is 4.14 x 10^-51 M. To calculate the concentration of A after 495 seconds, we need to use the following equation:

[A] = [A]0 * e^(-kt)

where [A] is the concentration of A at time t, [A]0 is the initial concentration of A, k is the rate constant for the reaction, and t is the time in seconds.
Plugging in the given values, we get:
[A] = 0.00320 * e^(-0.600 * 495)
Solving for [A], we get:
[A] = 0.00320 * e^(-297)
[A] = 4.14 x 10^-51 M

Here is a step-by-step explanation to calculate the concentration of A after 495 seconds with a rate constant of 0.600 M^-1·s^-1 at 200 °C:

1. Identify the reaction order: The rate constant has units of M^-1·s^-1, indicating that the reaction is a first-order reaction.
2. Use the first-order integrated rate equation: For first-order reactions, the integrated rate equation is [A]t = [A]0 * e^(-kt), where [A]t is the concentration of A at time t, [A]0 is the initial concentration of A, k is the rate constant, and t is time.
3. Plug in the values: [A]0 = 0.00320 M, k = 0.600 M^-1·s^-1, and t = 495 s.
4. Calculate the concentration of A after 495 seconds: [A]t = 0.00320 M * e^(-0.600 M^-1·s^-1 * 495 s)
5. Solve the equation: [A]t = 0.00320 M * e^(-297) ≈ 0 M

The concentration of A after 495 seconds will be approximately 0 M. Keep in mind that this is a simplified answer, and the actual concentration would be a very small number close to zero.

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Answer:

i think it Naturalistic observation

Explanation:

Answer: c) The line shows a change in speed if its angle changes.

I'm not sure

Explanation:

Answer:

A dimension is a measure of a physical variable.

Unit is a way to assign a number or measurement to that dimension.

In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned, also known as a bare, pure, or scalar quantity or a quantity of dimension one, with a corresponding unit of measurement is the SI of the unit one, which is not explicity shown.

If the distance between charged particles A and B triples, the static electric force between them will decrease by a factor of 1/9.

The static electric force between two charged particles is inversely proportional to the square of the distance between them. Mathematically, the relationship can be expressed as: F ∝ 1/r^2

Where F is the static electric force and r is the distance between the charged particles.

When the distance triples (r' = 3r), we can calculate the ratio of the new force (F') to the original force (F) as:

F'/F = (1/r'²) / (1/r²) = (r^2) / (r'²) = (r²) / (3r)² = 1/9

Therefore, the static electric force between the charged particles A and B becomes 1/9 of its original value when the distance between them triples.

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Answer:

1250 for .4

125 for 4

Explanation:

\(p=\frac{m}{v}\)

500/4 = 125

500/.4 = 1250

Answer:

Astronauts who are orbiting the Earth often experience sensations of weightlessness. These sensations experienced by orbiting astronauts are the same sensations experienced by anyone who has been temporarily suspended above the seat on an amusement park ride. Not only are the sensations the same (for astronauts and roller coaster riders), but the causes of those sensations of weightlessness are also the same. Unfortunately however, many people have difficulty understanding the causes of weightlessness.

Answer:

The more compact the body, the less friction and the more mass the mass must have friction.

Answer:

F ihghr gtgrugugerygerugruegu guergu reugreuguregureguregugru gru gr eg

Is there any more information regarding this question? It seems to be missing some data.

Vernier calipers have a resolution of 1/10 of an inch.

To determine the diameter of circular objects, a vernier caliper is typically employed. The vernier caliper's elongated jaws can precisely measure the circumference of rounded objects.

A vernier caliper has two scales: a moving vernier scale in addition to the primary, fixed scale. The primary scale displays millimeter readings.

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