If 2. 0 c of charge passes through a wire in time 0. 25 s, what is the current in the wire?.

The angular deflection to the first diffraction minimum is 40.2 degrees.

The angular deflection to the second diffraction minimum is 51.9 degrees.

The angular deflection for the first and second diffraction minima can be calculated using the following formula:

sinθ = mλ/W

where θ is the angular deflection, m is the order of the diffraction minimum (1 for the first minimum, 2 for the second minimum), λ is the wavelength of the sound wave, and W is the width of the doorway opening.

First, we need to calculate the wavelength of the sound wave:

λ = v/f = 340 m/s / 440 Hz = 0.773 m

Now, we can calculate the angular deflection for the first diffraction minimum:

sinθ1 = 1(0.773 m) / 1.2 m = 0.644

θ1 = \(sin^-^1\)(0.644) = 40.2 degrees

We can also calculate the angular deflection for the second diffraction minimum:

sinθ2 = 2(0.773 m) / 1.2 m = 1.288

θ2 = \(sin^-^1\)(1.288) = 51.9 degrees

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Answer:

Ver explicación

Explanation:

Según los principios de Arquímedes, el empuje hacia arriba de un objeto sumergido en un fluido es igual al peso del fluido desplazado.

Por eso

Empuje hacia arriba = volumen del objeto * densidad del fluido * aceleración debida a la gravedad

Empuje hacia arriba = 2 * 10 ^ -6 / 2 * 1 * 10 ^ 3 * 10

Empuje hacia arriba = 0.01 N

Desde;

Empuje hacia arriba = peso del fluido desplazado

peso del fluido desplazado = 0.01 N

Masa de fluido desplazado = 0.01 N / 10 = 1 * 10 ^ -3 Kg o 1 g

Answer:

Explanation:

The moon is held in its orbit around Earth by gravity. The moon also feels a gravitational pull from the sun. Which of the following is true?

According to Newton's third law, the interaction forces are the same.

(a) The force of the moon acting on the sun is equal to the force of the sun acting on the moon.

Answer:

Angle of incidence. = Angle of reflection

0° = 0°

30°. = 30°

42°. =. 42°

60°. =. 60°

90°. =. 90°

angle of incidence is always equal to angle of reflection on plane surface

Hope it helps

Answer:

Saturn is almost as big as Jupiter despite its smaller mass because Jupiter is a more dense gas giant than Saturn.

Explanation:

For a block of solid copper sits on a flat, level table. Copper has a density of 8. 94 ✕ 103 kg/m3, the volume of the block  is mathematically given as

V = 2.28x10^3

Generally, the equation for the volume of the block is mathematically given as

V = m/p

V = 20.4/8.94x10^3

V = 0.00228

V = 2.28x10^3

In conclusion, the volume of the block is

V = 2.28x10^3

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The energy of the flywheel can be calculated using the equation E = \(0.5Iw^2\), where I is the moment of inertia and ω is the angular velocity.

For a flywheel with a radius of 1m and mass of 500kg, the moment of inertia is\(500 x (1m)^2 = 500 kg-m2.\) The angular velocity is 500 revolutions per minute, which is equivalent to 8.667 rad/s. Plugging these values into the equation gives us \(E = 0.5 x 500 x (8.667)^2 = 35,584.7 J.\)

The energy of a flywheel is the energy stored in the kinetic form due to its rotation. It is defined as the product of the moment of inertia and the square of the angular velocity of the flywheel.

The energy stored in the flywheel is proportional to the square of the angular velocity and is also proportional to the moment of inertia. The greater the angular velocity, the more energy is stored in the flywheel.

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Answer:

In general, A/Ps win, but some synaptic signal transduction is much faster.

Explanation:

The answer depends on the synapse type:

A high-speed action potential (A/P) moves along an axon at ≈ 1 mm every 8.3 μs (≈ 120 m/s). Arriving at a terminal, the A/P voltage spike causes voltage-gated calcium channels to open, flooding the axon bouton with Ca ++

 ions, triggering neurotransmitter release.

Three different types of synapse:

In chemical synapses, transport vesicles dump their payloads into the synaptic gap (via exocytosis), neurotransmitter molecules diffuse across a ≈ 20–40 nm gap, to be sensed by receptor proteins on the post-synaptic cell membrane. Together, this may result in significant synaptic delays (milliseconds).

In electrical synapses, gap junctions open, allowing charged ions (an electric current) to flow cross, with a very short delay from axon bouton polarization ⟶ ion flow ⟶ post-synaptic cell reception.

In retina horizontal cells — said to be using the fastest known synapse type — there is no synaptic delay.

At the position x = 0.3m, the block experiences a negative acceleration with a magnitude of 9 m/s². The net force exerted on the block is directed in the negative direction. Hence, option (d) -9 m/s² represents the correct magnitude and direction of the acceleration and net force.

The data given includes,

Mass of the block m = 0.5 kg, Spring constant k = 25 N/m, Amplitude A = 0.3 m, The spring is unstretched at x = 0, the block-spring system oscillates between x = - 0.3m and x = 0.3mWe need to calculate the Magnitude of Acceleration and the Direction of Net force when the block is located at x = 0.3 m

Formula:

The equation of motion for a spring is given by md²x/dt² = -kx

Where m is the mass that is attached to the spring and k is the spring constant

The solution to this equation of motion isx(t) = A sin(ωt + φ)

where A is the amplitude, ω is the angular frequency of the motion, and φ is the phase angle

The angular frequency of the motion is given byω = √(k/m)

Substituting the given data,

ω = √(25/0.5) = 10 rad/s

The block's position as a function of time can be described by the following equation.

x(t) = A sin(ωt)

When the block is located at x = 0.3m, the displacement of the block from its equilibrium position x₀ = 0 is given byx₀ = A sin(φ)

where φ is the phase angle

Rearranging the above equation

φ = sin⁻¹(x₀ / A)

Substituting the data,

φ = sin⁻¹(0.3 / 0.3) = 90°At t = 0, x(t) = 0.3,

so we can write it as

0.3 = A sin(φ)0.3 = 0.3 sin(90°)0.3 = 0

So, this equation is not correct

When the block is located at x = 0.3m, the displacement of the block from its equilibrium position x₀ = 0 is given by

x₀ = A sin(φ)

where φ is the phase angle

Rearranging the above equation

φ = sin⁻¹(x₀ / A)

Substituting the given values,

φ = sin⁻¹(0.3 / 0.3) = 90°At t = 0, x(t) = 0.3, so we can write the equation of motion as

x(t) = A sin(ωt + φ)x(t) = 0.3 sin(10t + 90°)

The block's velocity is given by

v(t) = dx/dt

The block's acceleration is given by

a(t) = d²x/dt²a(t) = -ω² A sin(ωt + φ)a(t) = - (10)² 0.3 sin(10t + 90°)a(t) = - 9 m/s²

The acceleration of the block is negative

When the block is located at x = 0.3 m, the direction of the net force exerted on it is negative.

Magnitude of Acceleration = 9 m/s²

Direction of Net force = negative

Therefore, option (d) 0m / (s²) negative is the correct answer.

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The superposition principle states that when two or more waves occupy the same space, wave displacements add at every point.

The superposition principle is the principle that describes the behavior of two or more waves that are traveling in the same or opposite directions when they are brought close to each other in space.

The superposition principle states that when two or more waves overlap in space, the resultant disturbance is equal to the algebraic sum of the individual disturbances.

Some applications of the superposition of waves include:

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Answer:

\( \boxed{\sf Time \ taken = 10 \ seconds} \)

Given:

Initial velocity (u) = 10 m/s

Final velocity (v) = 30 m/s

Acceleration (a) = 2 m/s²

To Find:

Time taken (t) by bike to increase its velocity from 10 m/s to 30 m/s with an acceleration of 2 m/s²

Explanation:

\(\sf From \ equation \ of \ motion:\)

\( \boxed{ \bold{v = u + at}}\)

Substituting values of v, u & a in the equation:

\( \sf \implies 30 = 10 + 2t\)

Substract 10 from both sides:

\( \sf \implies 30 - 10 = (10 - 10) + 2t\)

\( \sf \implies 20 = 2t\)

20 = 2t is equivalent to 2t = 20:

\( \sf \implies 2t = 20\)

Dividing both sides by 2:

\( \sf \implies \frac{ \cancel{2}t}{ \cancel{2}} = \frac{20}{2} \)

\( \sf \implies t = \frac{10 \times \cancel{2}}{ \cancel{2}} \)

\( \sf \implies t = 10 \: s\)

So,

Time taken (t) by bike to increase its velocity from 10 m/s to 30 m/s with an acceleration of 2 m/s² = 10 seconds

An automobile traveling in the left lane at 60.1 km/h to overtake (become even with) another car that is traveling in the right lane at 38.1 km/h, when the cars' front bumpers are initially 105.2 m apart and the time taken is t = 17.21 seconds.

To find the time, the given values are,

Distance in,

Left lane = 60.1 km/hr

Right lane = 38.1 km/hr

Initial length d₀ = 105.2 m

The distance covered can be derived using the equation of motion with no acceleration.

distance d = speed v × time t

d = vt

For the first automobile,

v = 60.1 km/h

d₁ = 60.1

For the second automobile,

v = 38.1 km/h

Initial distance d = 105.2 m = 0.1052 km

d = vt + d₀.

d₂ = 38.1 t  + 0.1052

For them to meet/overtake each other,

Their distance at that time must be equal.

d₁ = d₂

60.1 t = 38.1 t + 0.1052

60.1 t - 38.1 t = 0.1052

22 t = 0.1052

t = 0.1052 / 22 hr

Converting to seconds

t = 0.1052 / 22 × 3600s

t = 17.21 seconds.

The time taken for an automobile to travel is 17.21 seconds.

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A 36 amino acid long helix would have 10 turns since alpha-helices contain 3.6 amino acids each turn.

Body protein as well as other vital nitrogen-containing substances including creatine, peptide hormones, as well as some neurotransmitters cannot be produced without amino acids. Although limits are expressed in terms of protein, amino acids are a biological necessity.

Amino acids are the primary building elements of proteins. Their molecule has both an amino as well as a carboxylic group. Alpha-amino acid are amino acids that have a carboxyl group and an alpha-carbon atom linked to the same carbon atom. Glycine, alanine, etc. are a few examples.

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Answer:

Its C

Thank me later

Now bye

Answer:

5. 0.5 m/s

6. 2.06 m/s

7. 0.22 m

Explanation:

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

Horizontal range (Rₓ) = 0.21 m

Time of flight (T) = 0.421 s

Time (t) to reach the top = 0.2105 s

5. Determination of the horizontal velocity of the ball.

Horizontal range (Rₓ) = 0.21 m

Time of flight (T) = 0.421 s

Horizontal velocity (vₓ) =?

Rₓ = vₓ × T

0.21 = vₓ × 0.421

Divide both side by 0.421

vₓ = 0.21 / 0.421

vₓ = 0.5 m/s

Thus, the horizontal velocity is 0.5 m/s.

6. Determination of the initial vertical velocity of the ball.

Time (t) to reach the top = 0.2105 s

Final vertical velocity (vբᵧ) = 0 m/s

Acceleration due to gravity (g) = 9.8 m/s²

Initial vertical velocity (vᵢᵧ) =?

vբᵧ = vᵢᵧ – gt (ball is going against gravity

0 = vᵢᵧ – (9.8 × 0.2105)

0 = vᵢᵧ – 2.06

Collect like terms

0 + 2.06 = vᵢᵧ

vᵢᵧ = 2.06 m/s

Thus, the initial vertical velocity of the ball is 2.06 m/s.

7. Determination of the maximum height reached by the ball.

Time (t) to reach the top = 0.2105 s

Acceleration due to gravity (g) = 9.8 m/s²

Maximum height (h) =?

h = ½gt²

h = ½ × 9.8 × 0.2105²

h = 4.9 × 0.2105²

h = 0.22 m

Thus, the maximum height reached by the ball is 0.22 m

Answer:

Voltage V = 117.65 volts

the voltage across the light bulb's filament is 117.65 V

Explanation:

The power of a light bulb can be expressed with respect to voltage and current flow.

Power = voltage × current

P = VI

Making Voltage V the subject of formula;

V = P/I

Given;

Power P = 4.0W

Current I = 0.034A

Substituting the given values;

V = 4/0.034

V = 117.65 volts

Answer:

\(2\times 10^{8}\ \text{m/s}\)

Explanation:

\(n\) = Refractive index of glass = 1.5

\(c\) = Speed of light in vacuum = \(3\times 10^8\ \text{m/s}\)

Refractive index is given by

\(n=\dfrac{c}{v}\\\Rightarrow v=\dfrac{c}{n}\\\Rightarrow v=\dfrac{3\times 10^8}{1.5}\\\Rightarrow v=2\times 10^{8}\ \text{m/s}\)

The speed of light in the glass is \(2\times 10^{8}\ \text{m/s}\).

Please see attached picture for answer an explanation.

The moment of force about point O, is determined from the product of force and perpendicular distance

The moment of a force about a given point is the torque exerted by the applied force on the object. The moment of force is determined from the product of force and perpendicular distance of the applied force.

P = Fd

where;

Thus, the moment of force about point O, is determined from the product of force and perpendicular distance.

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Answer: a bridge suspended by cables

Weight is the force experienced by an object due to gravity and is equal to the product of its mass and gravitational acceleration.

Weight is not equal to mass multiplied by gravitational field strength. Weight is actually the force experienced by an object due to gravity, and it is given by the equation:

Weight = mass * gravitational acceleration

The gravitational acceleration is denoted by "g" and represents the acceleration due to gravity at a particular location. It is a constant value and does not depend on the mass of the object. On the surface of the Earth, the average value of gravitational acceleration is approximately 9.8 m/s^2.

So, the correct equation for weight is:

Weight = mass * gravitational acceleration

The reason weight is equal to the product of mass and gravitational acceleration is due to Newton's second law of motion. According to this law, the force acting on an object is equal to the product of its mass and acceleration. In the case of weight, the force acting on an object is the gravitational force, which is proportional to its mass (through the equation F = ma) and the gravitational acceleration.

Therefore, It's important to note that mass and gravitational field strength are not the same thing. Mass is a property of matter that measures the amount of material in an object, while gravitational field strength (or gravitational acceleration) is a measure of the intensity of the gravitational field at a specific location.

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The  type of particle that would be given off by the nuclear reaction

Americium-241 (Am-241) → Neptunium-237 (Np-237) + option (a) Alpha (2p, 2n)

Nuclear reactions involve changes in the nucleus of an atom, which can result in the emission of different types of particles. In this case, Americium-241 undergoes alpha decay, which is a type of radioactive decay where an alpha particle is emitted from the nucleus.

An alpha particle is made up of two protons and two neutrons, which means that it has a mass number of 4 and a charge of +2. When Americium-241 undergoes alpha decay, it loses an alpha particle, which results in the formation of a new nucleus. In this case, the new nucleus is Neptunium-237, which has a mass number of 237.

Since the particle that is emitted is an alpha particle, the answer is (a) Alpha (2p, 2n). Alpha particles are relatively large and heavy, and they have low penetration power, which means that they can be stopped by a few inches of air or a piece of paper.

Therefore, the correct option is (a) Alpha (2p, 2n)

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Answer:

0.07

Explanation:

Huge Brain

Coefficient of friction between the car and the ground will be 0.07.    

    Given in the question,

Force applied on the car by which the car is accelerated,

F = ma

  = 3000 × 3

  = 9000 N

Force \(F_k\) to overcome the friction = 11000 - 9000

                                                         = 2000 N

Gravitational force F' on the car = mg

                                                       = 3000(9.8)

                                                       = 29400 N

Since, \(\mu_k=\frac{F_k}{F'}\)

                \(=\frac{2000}{29400}\)

                \(=0.068\)

                ≈ 0.07

   Therefore, coefficient of friction between the car and the ground will be 0.07.    

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Answer:

The answer is A, I just took the quiz :)

ik you already got the answer, but just in case anyone else who gets this question looks here, the person who said A was right!!

The total mass of the product nuclei is greater than the mass of the target nucleus

"Nuclear fission products are the atomic fragments left after a large atomic nucleus undergoes nuclear fission. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons, the release of heat energy (kinetic energy of the nuclei), and gamma rays."

"Change in the identity or characteristics of an atomic nucleus, induced by bombarding it with an energetic particle. The bombarding particle may be an alpha particle, a gamma-ray photon, a neutron, a proton, or a heavy ion."

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Answer:

187N

Explanation:

weight = mass * gravity

weight = 50 * 3.7

weight = 187N

Answer:

5.06 m/s

Explanation:

velocity = distance / time

             = ( 25.6 - - 14.4) / 7.90 = 5.06 m/s

When we do, we make sure to measure our mass in kilograms. We determine that F is equal to 124.26 newtons by entering these numbers into our calculator.

That is the average magnitude of the force applied to the tennis ball.

The equation that Newton was referring to is shown by a serve. You can calculate the total force that was applied by the tennis racket to the ball by multiplying the weight of the racket by the speed at which the player swings their racquet.

An average 120-mph serve slows to 82 mph before the bounce, 65 mph after the bounce, and 55 mph at the opponent's racket, according to tennis instructor and analyst John Yandell.

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Answer:

b. between 2 s and 4 s

Explanation:

2-4 was both 3m/s