A distance of 1.0 × 10–2

meter separates successive
crests of a periodic wave produced in a shallow tank
of water. If a crest passes a point in the tank every 4.0
× 10–1
second, what is the speed of this wave?

Answer:

I don't know sorry brother/sister

Explanation:

please mark as brilliant

The claim that can be deduced is that B. Warmer weather caused Galetown to have more severe rainstorms.

It should be noted that a claim simply means the stance of an author in a literary work.

In this case, the claim is that warmer weather caused Galetown to have more severe rainstorms.

When the temperature of an air parcel begins higher, this will make it rise higher in the troposphere before the temperature of the air parcel and surrounding air are equal.

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Answer:14.8

Explanation:

Trust me

The distance will be = 14.85 m

A region around a charged particle or object within which a force would be exerted on other charged particles or objects.

given :

Charge (q)= 2.45*\(10^{-6}\) C

Electric field (EF) =  100 N/C

to find = ? distance (r)

Electric field = 1/4π∈o * (q/\(r^{2}\))

         100      = 9 * \(10^{9}\) *  ( 2.45*\(10^{-6}\) / \(r^{2}\))

          \(r^{2}\) = 220.5

          r= \(\sqrt{220.5}\)

          r = 14.85 m

The distance will be = 14.85 m

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Melissa observed with the rice dancing is an interesting phenomenon called the Chladni effect.

When she placed the aluminum pie pan with a shallow layer of rice over the speaker on the radio and turned up the volume, the sound waves produced by the speaker caused the pan and the rice to vibrate.Sound waves are actually vibrations that travel through a medium, in this case, the air. When the speaker emits sound waves, they hit the pan, causing it to vibrate. These vibrations are then transferred to the rice, making it move and dance on the pan's surface.

The reason the rice gathers into patterns is due to the specific frequencies of the sound waves. Each frequency creates a unique standing wave pattern on the pan's surface. These patterns form areas of high and low vibrations, causing the rice to gather in the areas of least vibration, resulting in visible patterns.So, in simple terms, the rice dances due to the vibrations caused by the sound waves produced by the speaker. The Chladni effect helps us visualize and understand how sound waves interact with different objects and create patterns. I hope this explanation helps! Let me know if you have any further questions.

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Answer:

A: The distance light travels in one year

Answer:Covalent bond

Explanation:

The wavelength of a 1.9 EHz X-ray is approximately 1.58 x 10^-10 meters.

To find the wavelength of a 1.9 EHz X-ray, we can use the formula that relates frequency (f), wavelength (λ), and the speed of light (c):

c = λ × f

Where c is the speed of light (approximately 3.0 x 10^8 m/s), λ is the wavelength we want to find, and f is the given frequency of the X-ray (1.9 EHz).

First, we need to convert the frequency from EHz (exahertz) to Hz (hertz). Since 1 EHz equals 10^18 Hz, we have:

f = 1.9 EHz × 10^18 Hz/EHz = 1.9 x 10^18 Hz

Now we can rearrange the formula to find the wavelength:

λ = c / f

Substitute the values of c and f into the formula:

λ = (3.0 x 10^8 m/s) / (1.9 x 10^18 Hz)

Now divide the numbers:

λ ≈ 1.58 x 10^-10 m

So, the wavelength of a 1.9 EHz X-ray is approximately 1.58 x 10^-10 meters.

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Hi there! :)

\(\large\boxed{38.34 m/s}\)

Use the following kinematic equation to solve:

\(v_{f}^{2} = v_{i}^{2} + 2ad\)

Where:

vf = final velocity (?)

vi = initial velocity (0 m/s, object started at rest)

a = acceleration (gravity = 9.8 m/s)

d = distance travelled (75 m)

Plug in the given values into the equation:

\(v_{f}^{2} = 0^{2} + 2(9.8)(75)\)

Simplify:

\(v_{f}^{2} = 2(9.8)(75)\\\\v_{f}^{2} = 1470\)

Take the square root of both sides:

\(v_{f} = \sqrt{1470} = 38.34 m/s\)

Answer:

F = m g / 4,  F = 12250 N

Explanation:

For this exercise we must use the rotational equilibrium relation

          ∑τ = 0

let's set a reference system on the wheel where the bus is turning and that the anti-clockwise rotations have been positive

          -2F x_string + W x_bus = 0

          x_bus =\frac{l}{2} cos 45

          x_string = l cos 45

where F is the force on each wheel and W the weight of the bus ,, we assume that the center of mass is in the middle and x_bus is the perpendicular distance from the center of mass to the turning point.

             2F l cos 45 = W \(\frac{l}{2}\)  cos 45

             F = m g / 4

to finish the calculation we must assume a mass for the bus m = 5000 kg

             F = 5000 9.8 / 4

              F = 12250 N

Answer:

The electricity produced from the main source which is an electrical generator which is usually close a remote abundant source of natural energy or at a distant location away from the residential areas where the electricity is used

The step up transformer is  the device used to raise the voltage and therefore lower the current of the of incoming generated electricity before it is transmitted through high tension cables so that the energy loss from source to destination is reduced and the electricity generated can applied where needed

However, the high voltage transmitted along power lines to reduce energy loss cannot be used as it is by the consumer, partly because it is very harmful in the event of an electric shock and can easily damage household electrical devices, therefore, the high voltage in the power lines is reversed back or lowered into voltages which can be used to power electrical devices in buildings with the use of a step-down transformer

Explanation:

The statement is false. The expansion of the universe has not been constant since its formation.

The cosmos has been expanding faster over time, according to the prevalent scientific theory. Observations of far-off supernovae and measurements of cosmic microwave background radiation were used to make this finding.

It sparked the development of the cosmic inflation theory and the idea of dark energy, which is believed to be the cause of the rapid expansion. Throughout the universe's history, the pace of expansion has changed, with periods of slower growth and periods of quicker expansion.

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B        BRIANLIEST PLS

Explanation:

Here, both the momentum and kinetic energy of he ball are conserved. There is no change in the magnitude of the speed thus, its kinetic energy is conserved.

The kinetic energy of an object is the energy generated by virtue  of its motion. It is related to its mass and velocity by the expression written below:

Ke = 1/2 mv²

The momentum of an object is the product of its mass and velocity. For an elastic collision both momentum and kinetic energy is conserved. But in the case of an inelastic collision, there is some energy loss and the kinetic energy is not conserved but momentum is conserved.

Here, the ball bounces by colliding with the floor, where its direction is changing but not the magnitude of speed. Hence, both the momentum and kinetic energy are conserved.

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The heat given off by the combustion of fossil fuels help produce electrical energy is (B) Thermal energy vaporizes water that spins turbines.

When fossil fuels like coal or natural gas are burned, heat is released into the air, which is used to heat water and create steam. The steam is then used to power turbines, which are linked to electricity-generating generators. The most popular way to generate energy from fossil fuels is through a process called thermal power generation.

Therefore, the correct option is (B).

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Answer:

Social learning occurs when four processes are present: 1) Attention: The learning organism must be paying attention to the modeled behavior. If there is no attention, the behavior cannot be processed into memory. 2) Retention: The learning organism must remember the behavior that was modeled.

Explanation:

Hope this helps.

Answer:

Social learning occurs when four processes are present:

1) Attention: The learning organism must be paying attention to the modeled behavior. If there is no attention, the behavior cannot be processed into memory.

2) Retention: The learning organism must remember the behavior that was modeled. If the behavior is not retained, it cannot be replicated.

3)  Reproduction: The learning organism must be capable of producing the behavior. If the behavior is too skilled or impossible for the organism to replicate, then the reproduction will be unskilled or halting.

4) Motivation:  The learning organism must be motivated to perform the behavior, or motivated not to perform the behavior.  If the organism is not motivated to perform the behavior, and even if the organism is able to perform the behavior and knows how, it may not.

The algorithm performs a logarithmic search in an array with time complexity O(logzn).

An algorithm to search for a value in an array with a time complexity of O(logzn), assuming the array is sorted in ascending order:

Initialize two variables, "start" and "end," to represent the range of the array to be searched. Set "start" to 0 and "end" to the length of the array minus 1.

While "start" is less than or equal to "end," do the following steps:

a. Calculate the middle index of the current range using the formula: middle = start + ((end - start) / z).

b. If the value at the middle index is equal to the target value, return the middle index as the position of the target value in the array.

c. If the value at the middle index is less than the target value, update "start" to middle + 1 to search in the right half of the array.

d. If the value at the middle index is greater than the target value, update "end" to middle - 1 to search in the left half of the array.

If the target value is not found after the while loop, return -1 to indicate that the value is not present in the array.

The algorithm divides the search range by the factor "z" at each step, similar to how binary search divides the range in half. This logarithmic division of the search space leads to a time complexity of O(logzn).

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A parallel-plate capacitor has plates of area 3.07 x 10⁻⁴ m². So the plate separation is required if the capacitance is to be 1520 pF is  5.717 x 10⁻⁵ m.

The capacitance of parallel plate capacitor, C = (ε0 * K * A)/ d, where ε0 = permittivity of free space, K = dielectric constant, A = Area of the plate separation, d = plate separation.

Given:

Area of plate, A = 3.07 * 10⁻⁴ m²

Capacitance, C = 1520

pF = 1520 * 10⁻¹² F

The dielectric constant of air, K = 1.00059

Rearranging the above formula, we get,

d = (ε₀* K * A)/ C

Substituting the above values in the above formula,

d = (ε₀ * K * A)/ C

d = (8.85 * 10⁻¹² * 1.00059 * 3.07 * 1⁻⁴)/ (1520 * 10⁻¹²)

d = 5.717 * 10⁻⁵ m

Hence, the plate separation required is 5.717 x 10⁻⁵ m.

Complete question:

A parallel-plate capacitor has plates of area 3.07 x 10⁻⁴ m²

What plate separation is required if the capacitance is to be 1520 pF? Assume that the space between the plates is filled with air? (Dielectric constant for air is 1.00059)

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Answer:

a)15m/s

b)7.5m/s

Explanation:

a)use the formula for acceleration

b)calculate distance then calculate speed

The most common injury related to electrical hazards are Electrical burns.

What are electrical hazards?

An electrical burn is a type of skin burn that develops when your body comes into contact with electricity. It is possible for electricity to pass through your body when it comes into contact with it. When this occurs, the voltage has the potential to harm tissues and organs.

Hence, The most common injury related to electrical hazards are Electrical burns.

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Answer:

The formula is the form -

m λ = d sin Θ

As the wavelength λ is decreased sin Θ will also decrease.

One can see from the derivation that as the wavelength, being considered,

is decreased the dispersion will also decrease.

The correct statement regarding the work and impulse required to move a box on the floor from 2v to 3v and from 3v to 4v is Case i requires less work, but i and ii require the same amount of impulse.

W = ΔKE

W = Work done

ΔKE = Change in Kinetic energy

ΔKE = 1 / 2 m ( v2 - v1 )²

J = m Δv

J = Impulse

m = Mass

Δv = Change in velocity

For ( i ),

W = 1 / 2 m ( ( 3 v )² - ( 2 v )² )

W = 1 / 2 m ( 9 v² - 4 v² )

W = 2.5 m v²

J = m ( 3 v - 2 v )

J = m v

For ( ii ),

W = 1 / 2 m ( ( 4 v )² - ( 3 v )² )

W = 1 / 2 m ( 16 v² - 9 v² )

W = 3.5 m v²

J = m ( 4 v - 3 v )

J = m v

Therefore,

i ) W1 < W2

ii ) J1 = J2

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Kinetic energy is the kind of energy mentioned. The energy an object has as a result of its motion is known as kinetic energy.

Sound is a pressure density wave, whereas light is an electromagnetic wave. Sound must pass through a medium in order to be heard, but light does not. Sound energy is a continuous stream of energy on the scale while light energy is quantized into packets of energy called photons.

Sound is the longitudinal (compression or rarefaction) wave-based transfer of energy through materials. When a force causes an object or substance to vibrate, sound is created. That is to say, the substance serves as a conduit for the energy.

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The type of energy mentioned is kinetic energy. Kinetic energy is the energy that an object has as a result of motion.

Light is an electromagnetic wave, whereas sound is a pressure density wave. Light does not require a medium for transmission, but sound must. On the scale, sound energy flows continuously, whereas light energy is quantized into units of energy called photons.

The longitudinal wave-based transport of energy through materials is known as sound. Sound is produced when a force causes an item or substance to vibrate. In other words, the substance acts as a conduit.

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____________ energy the energy of motion, observable as the movement of an object or subatomic particle. Every moving object and particle have this energy. A person walking, a soaring baseball, a crumb falling from a table and a charged particle in an electric field are all examples of this energy at work.

What type of energy is described above? A. sound energy B. light energy C. heat energy D. kinetic energy

Answer:

The electrons

Explanation:

Answer:

Scalar quantities are defined by a magnitude with no applicable direction. In contrast, vector quantities must have both magnitude and direction of action. Some common scalar quantities are distance, speed, mass, and time. Some common vector quantities are force, velocity, displacement, and acceleration.

Explanation:

❤❤❤❤❤

Answer:

Below

Explanation:

17.4 inches = 441.96 mm      14.8 inches = 375.92 mm

volume = 441.96 X 375.92 X T  

                                   = 166141.6 T  mm^3  <===where T = thickness in mm

Volume X density = mass

 166141.6 T mm^3  * 2.7 gm/cm^3  * cm^3 / 1000mm^3  = 10.8 gm

     solve for T = .024 mm

Answer:

245W

Explanation:

Given parameters:

Mass of his body = 50kg

Height of climb  = 5m

Time  = 10s

Unknown:

Power = ?

Solution:

Power is defined as the rate at which work is done;

 Mathematically,

           Power  = \(\frac{work done}{time}\)

  Work done  = mgh

m is the mass

g is the acceleration due to gravity

h is the height

  Work done  = 50 x 9.8 x 5  = 2450J

          Power  = \(\frac{2450}{10}\)   = 245W

Answer: A. Frequency

Explanation: The frequency of light remains constant when the light ray is incident on the interface of two media. But light moves at different speeds in different media. As a result, the wavelength of light also changes at the interface. This, in turn, causes a change in direction, which is refraction.

The pivot should be placed 1.31 m from the left end of the board to balance the seesaw when you sit on the left end and your friend sits on the right end, taking into account the mass of the board.

T1 = 90 kg * g * (x - 1.5 m)

T2 = 60 kg * g * (1.5 m - x).

T3 = Mg * (L/2 - x)

In the equilibrium position, we set the sum of the torques equal to zero:

T1 + T2 + T3 = 0

90 kg * g * (x - 1.5 m) + 60 kg * g * (1.5 m - x) + Mg * (L/2 - x) = 0

Simplifying and solving for x, we get:

x = (45 kg * L + 1.5 m * (90 kg - 60 kg)) / (M + 150 kg)

Substituting the values given in the problem, with M = 29 kg, we get:

x = (45 kg * 3.0 m + 1.5 m * 30 kg) / (29 kg + 150 kg)

x = 1.31 m

Torque is a measure of the force that causes an object to rotate around an axis or pivot point. It is often described as the rotational equivalent of force. The amount of torque an object experiences is dependent on both the magnitude and direction of the applied force, as well as the distance between the axis of rotation and the point where the force is applied.

The formula for torque is τ = r × F, where τ is the torque, r is the distance between the axis of rotation and the point of force application, and F is the magnitude of the applied force. Torque is typically measured in units of Newton meters (Nm) or pound-feet (lb-ft). Torque is an important concept in many areas of physics, including mechanics, engineering, and robotics. It plays a critical role in the operation of machines and engines, as well as in the movement and control of vehicles and aircraft.

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Answer:Bohr placed the electrons in distinct energy levels.  Rutherford described the atom as consisting of a tiny positive mass surrounded by a cloud of negative electrons. Bohr thought that electrons orbited the nucleus in quantised orbits.

Explanation: also rutherfords was just a hypothesis while Bhor took the time to make his an experiment