jerome wants to photograph runners at a track meet. he wants his photographs to show motion. which type of setting will help emphasize a blur of motion?

The sound level of 86dB when fired simultaneously will have sound level of 82.9898dB.

Theory-

According to the Beta factor model, the common cause will have an equal impact on every member of a component group that shares a common cause.

The beta factor model is simple to use, models common cause failures, and only requires one parameter to be determined.

A drawback of the beta factor model is that it is impossible to quantify the failure of k–m components within a common cause component group.

As a result of multiplying the partial beta factors, the beta factor is calculated.

Mathematics-

\(\beta =10log\frac{2I}{i} \\\\\beta 1=10log\frac{I}{i} \\\\\beta =10log2 +\beta 1\\\\\beta 1=\beta -10log2\)

Calculation-

\(\beta 1=86-10log2\\\\\beta 1=86-3.0102\\\\\beta 1= 82.9898dB\)

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50 degree is equal to 313 kelvin and 34 degrees is equal to 277 kelvin.

Temperature scale with an absolute zero below which temperatures do not exist, the Kelvin scale. The temperature at which molecular energy is at its lowest is absolute zero, or 0°K, which is equal to 273.15° on the Celsius temperature scale.

Since the Kelvin degree is the same magnitude as the Celsius degree, the freezing point of water (zero degrees Celsius) and the boiling point of water (one hundred degrees Celsius) are equivalent to 273.15°K and 373.15°K, respectively, in Celsius.

It is customary to remove the degree symbol and instead use the letter K when writing temperatures in the Kelvin scale. William Thomson Kelvin, a British mathematician and physicist, proposed the temperature scale in 1848, and it bears his name. another scale for absolute temperature.

Therefore, 50 degree is equal to 313 kelvin and 34 degrees is equal to 277 kelvin.

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The correct order of increasing impedance is:

C. PZT, gel, skin, matching layer

Impedance is a measure of the opposition to the flow of sound waves in a medium. It depends on the density and speed of sound in the material. In the given options, the order of increasing impedance can be determined by considering the properties of the materials involved.

PZT (lead zirconate titanate) has a higher impedance than gel, skin, and the matching layer. PZT is a piezoelectric material commonly used in ultrasound transducers and has a higher density and speed of sound, leading to higher impedance.

Gel has a lower impedance compared to PZT but higher impedance than skin and the matching layer. Gel is used as a coupling medium between the transducer and the skin to enhance acoustic coupling and minimize impedance mismatch.

Skin has a lower impedance than both gel and the matching layer. It is the outermost layer and acts as an interface between the transducer and the biological tissue.

The matching layer has the lowest impedance among the given options. It is designed to match the impedance of the PZT to the impedance of the tissue being imaged, facilitating efficient sound transmission.

Therefore, the correct order is C.

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Answer: Push of the ball on the earth. The reaction force is equal and opposite to the action force, according to Newton's Third Law of Motion.

Explanation: In other words, when the earth pulls the ball downward with a force, the ball pushes back on the earth with an equal and opposite force. This occurs because forces are always pairs of equal and opposite forces, known as action-reaction forces. The action force is the force that initiates the interaction, while the reaction force is the force that responds to the action force. In this case, the action force is the pull of the earth on the ball, while the reaction force is the push of the ball on the earth.

Answer:

No

Explanation:

Displacement is how far between your initial and finishing position.

If one lap around the track is 400 m and the sprinter ran 1 lap around the track. Then the sprinter's distance is 400 m and their displacement is 0 m

If the sprinter ran 400 m in a straight line however, then it would be equal.

But since the sprinter ran 1 lap around there is no displacement.

I hope this helped you...  

Hi there!

Recall the conservation of momentum:

\(\large\boxed{m_1v_1 + m_2v_2 = m_1v_1' + m_2v_2'}}\)

For this type of inelastic collision:

\(\large\boxed{m_1v_1 + m_2v_2 = v_f(m_1 + m_2)}}\)

Thus, the initial momentum equal the final momentum if there are no external forces.

We can begin by writing out this problem:

\(2 + 6 = v_f(m_1 + m_2)\)

\(8 = 2(m_1 + m_2)\\\\m_1 + m_2 = \boxed{4 kg}\)

Answer:

Television: Electricity to light Toaster: Electricity to Heat

Explanation:

ENERGYY

If I have an insulated spherical shell with an inner radius of r and an outer radius of R. Then automatically the shell has a charge + Q which is distributed evenly.

So the answer is :

The steps :

3Q / 4pi (R^3) 3Q / 4 pi (R^3 - r^3) 3Q / 4 pi (r^3 - R^3) 3Q / 4 pi (r^3) [5 points] Suppose I have a conducting sphere of radius R. I place a net charge of +Q on the sphere. What is the charge density inside the sphere? Zeros.

The charge density is the number of electric charges per unit volume. The charge density is the sum of the length per unit length of an electric charge, which includes the surface area or volume of the object. with the formula:

σ = Q/V

Where :

V = ³/₄πR³ - ³/₄πr³

V = ³/₄π(R³ - r³)

Charge density = Q/V

                         = ³/₄ x πQ(R³ - r³)

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Answer:

the mass of the car is very big

Explanation:

its heavy

Answer:

\(118\; \rm Hz\).

Explanation:

The frequency \(f\) of a wave is equal to the number of wave cycles that go through a point on its path in unit time (where "unit time" is typically equal to one second.)

The wave in this question travels at a speed of \(v= 295\; \rm m\cdot s^{-1}\). In other words, the wave would have traveled \(295\; \rm m\) in each second. Consider a point on the path of this wave. If a peak was initially at that point, in one second that peak would be

How many wave cycles can fit into that \(295\; \rm m\)? The wavelength of this wave\(\lambda = 2.50\; \rm m\) gives the length of one wave cycle. Therefore:

\(\displaystyle \frac{295\;\rm m}{2.50\; \rm m} = 118\).

That is: there are \(118\) wave cycles in \(295\; \rm m\) of this wave.

On the other hand, Because that \(295\; \rm m\) of this wave goes through that point in each second, that \(118\) wave cycles will go through that point in the same amount of time. Hence, the frequency of this wave would be

Because one wave cycle per second is equivalent to one Hertz, the frequency of this wave can be written as:

\(f = 118\; \rm s^{-1} = 118\; \rm Hz\).

The calculations above can be expressed with the formula:

\(\displaystyle f = \frac{v}{\lambda}\),

where

Answer:

118

Explanation:

The rotational inertia of the rod with a mass of the rod is 1.6 grams and the length of the rod is 2m is 0.0533×10⁻⁶ kg/m².

From the given,

the rotational inertial of rod I,

I = I₁+I₂+I₃

mass of the one rod = 1.6 gram = 1.6×10⁻³kg

length of the rod = 2 cm = 0.02m

I = I₁+I₂+I₃

= (mL²/12)+(mL²/12)+0

= mL²/6

I =mL²/6

 = (1.6×10⁻³kg)×(0.02)²/6

 = (1.6×10⁻⁷)/3

 = 0.533 ×10⁻⁷

= 0.0533 ×10⁻⁶ kg/m²

Thus the rotational inertia of the rod is 0.0533×10⁻⁶ kg/m².

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Answer:

normal force= 480.2 x component=477.4  y component= 110.4

Explanation:

I'm sorry I just did this today in class but i think normal force has to be equal to mg or the mass * gravity of the person and that would be 480.2 newtons. I multiplied 9.8 (gravity) by the mass of 49g

I think for the x and y components you can make a triangle with the angled string and then use sohcahtoa to solve for the tension. I used cos(13) = x/490 to solve for x component and then I used the pythagoran theroem to get the remaining side which would be : a^2 + 477.4^2 = 490^2

hope this can help and that it is correct. good luck

The magnitudes of the x- and y- components of the tension is 477.44N and 110.23N

The normal force acting on the skier is 480.2N

The magnitude of the x- and y- components of the tension is expressed as:

Given the following

Tension T = 490N

x = 490 cos13° = 477.44N

y = 490sin13° =  110.23N

Hence the magnitudes of the x- and y- components of the tension is 477.44N and 110.23N

The normal force acting on the skier is equal to the weight.

N = W = mg

N = W = 49 * 9.8

N = W = 480.2N

Hence the normal force acting on the skier is 480.2N

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The acceleration of the object is 5 m/s^2 while the speed is 160 m

Let us note that we have to know that the acceleration of the car is the rate of the change of the velocity of the  car with timer and so we can then be able to write for this problem that;

a = v - u/t

a = acceleration

v = final velocity

u = initial velocity

t = time taken

a = 40 - 0/8

= 5 m/s^2

Then we have that;

v^2 = u^2 + 2as

s = v^2- u^2/2a

s = (40^2 - (0)^2/2 * 5

s = 160 m

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A ball attached to a string is being swung in a clockwise circular path as shown in Figure 3-1. direction will the acceleration on the ball be when the ball passes point A is direction a. Hence option A is correct.

Angular velocity is "rate of change of angular displacement with respect to time". i.e. ω= dθ/dt. it is also defined as angular displacement over time. i.e. ω = angular displacement/Time.

Angular velocity shows how much angle can be covered in unit time. It's SI unit rad/s. direction of the Agular velocity is given by right hand thumb rule.

Angular acceleration is rate of change of Angular velocity with respect to time.

i.e. α = dω/dt if an object changes its angular velocity in short time, we can say that it has greater angular acceleration. It is expressed in rad/s².

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Answer:

Gravity always pulls the ball toward the center of earth (the ground).

Explanation:

The frequency of light affects the release of photons because light photons have energy, which is directly proportional to the frequency of the light. When a photon is emitted or absorbed, it gains or loses energy that is directly proportional to the frequency of the light wave. Therefore, the greater the frequency of light, the greater the energy of photons.

When atoms or molecules absorb photons, they gain energy, and if that energy is sufficient, the electrons inside the atom or molecule may become excited, leading to their release. As a result, the energy of the photon and the frequency of the light determines whether or not photons will be released or absorbed by the atom.Light can either be absorbed or emitted by atoms and molecules, and the frequency of light determines the energy of photons.

Photons have energy directly proportional to the frequency of the light wave. If atoms or molecules absorb photons and gain energy, they may release electrons if the energy is sufficient. Therefore, the frequency of light determines whether or not photons are absorbed or emitted by the atom.

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The sounds emitting from Ross' car can be characterized as low frequency, high amplitude.

The question states that pedestrians often stare at Ross' car due to the loud, low-pitched booming sound they hear. From this description, we can infer certain characteristics of the sound.

Low frequency refers to sounds with a lower pitch, such as deep bass notes. These low-pitched sounds are associated with lower frequencies on the sound spectrum.

High amplitude refers to the intensity or loudness of the sound. When a sound is described as loud, it indicates a high amplitude or a greater magnitude of sound waves.

Therefore, the sounds emitting from Ross' car can be characterized as low frequency (low-pitched) and high amplitude (loud). This combination of characteristics results in the loud, low-pitched booming sound that draws the attention of pedestrians.

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No, the acceleration of a fluid particle is not necessarily zero in steady flow. In steady flow, the fluid properties at any point in the fluid remain constant over time, meaning that the fluid flow rate, velocity, and pressure do not change with time.

However, this does not necessarily mean that the acceleration of individual fluid particles within the flow is zero. According to the continuity equation of fluid mechanics, the rate of fluid flow through any given area in the flow must remain constant in steady flow.

This means that if the cross-sectional area of a pipe carrying fluid decreases, the fluid velocity must increase to maintain a constant flow rate. As the fluid velocity changes, the acceleration of individual fluid particles can also change in response to the changing velocity.

In addition, the Navier-Stokes equations, which describe the motion of fluid particles, include terms for acceleration, which can be non-zero in steady flow if the fluid velocity is changing at a given point.

Therefore, even in steady flow, the acceleration of a fluid particle can be non-zero if there is a change in the fluid velocity at a given point. In summary, while steady flow implies that the fluid properties do not change over time.

It does not necessarily mean that the acceleration of individual fluid particles within the flow is zero. The acceleration can be non-zero if there is a change in the fluid velocity at a given point.

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Answer:

I think a Kinetic energy of an object is the measure of the work an object can do by the virtue of its motion.”

Hope this help!:)

Two factors. The independent variable is the light colour and the dependent variable is the mood. The ambient colour is not a factor as it is being controlled in each room.

A within-subjects experiment is used to assess the effect of light colour on mood. The experiment has a single light bulb with three different ambient colour schemes. The experiment features three rooms each with a different light bulb, there are factors in this experiment.
In this within-subjects experiment designed to assess the effect of light colour on mood, there is 1 factor being manipulated, which is the ambient colour of the light bulb.

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In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Answer:

kilograms and m²/s²

Explanation:

The SI units combined to describe energy is kilograms and m²/s² ;

  Energy can be derived from;

Potential energy  = mgh

   Units               = kg x m/s² x m

                          = kg m²/s²

Even if we use kinetic energy, we still get kg m²/s²

Answer:

5524.8 m/s

Explanation:

Given that,

Altitude above the surface of earth is 6679 km, the Space Station can complete one orbit in 1.5 hours. We need to find the average speed of the ISS. The average speed of its orbit is given by :

\(v=\sqrt{\dfrac{GM}{R}}\)

R is distance from Earth

R = r + d, r is the radius of Earth

R = 6371  + 6679

R = 13050 km

So,

\(v=\sqrt{\dfrac{6.67\times 10^{-11}\times 5.972 \times 10^{24}}{13050\times 10^3}}\\\\v=5524.8\ m/s\)

or

Hence, the average speed of ISS is 5524.8 m/s.

The inductor can store up to 7.50 uJ of energy.

The inductor's maximum current is 0.0207 A.

The capacitor's maximum voltage is 20.7 V.

1.08 V is the voltage across the capacitor.

(a) The maximum energy stored in the inductor can be calculated using the formula for the energy stored in an inductor:

E = (1/2) * L * I²

where L is the inductance and I is the maximum current in the inductor. Substituting the given values, we get:

E = (1/2) * 60.0 mH * (0.500 mA)² = 7.50 uJ

Therefore, the maximum energy stored in the inductor is 7.50 uJ.

(b) The maximum current in the inductor can be calculated using the formula

I = Q / C

where Q is the charge on the capacitor and C is the capacitance. Substituting the given values, we get:

I = 6.00 uC / 290 uF = 0.0207 A

Therefore, the maximum current in the inductor is 0.0207 A.

(c) The maximum voltage across the capacitor can be calculated using the formula:

V = Q / C

Substituting the given values, we get:

V = 6.00 uC / 290 uF = 20.7 V

Therefore, the maximum voltage across the capacitor is 20.7 V.

(d) When the current in the inductor has half its maximum value, the energy stored in the inductor and the voltage across the capacitor can be calculated using the formulas:

E = (1/2) * L * I²

V = I / (C * ω)

where ω is the angular frequency of the circuit, given by:

ω = 1 / √(LC)

Substituting the given values, we get:

ω = 1 / √((60.0 mH)(290 uF)) = 800 rad/s

I = (1/2) * 0.500 mA = 0.250 mA

E = (1/2) * 60.0 mH * (0.250 mA)² = 0.937 uJ

V = (0.250 mA) / (290 uF * 800 rad/s) = 1.08 V

Therefore, when the current in the inductor has half its maximum value, the energy stored in the inductor is 0.937 uJ and the voltage across the capacitor is 1.08 V.

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The latitude and longitude coordinates for Location C are given as 50S, 68W. Therefore, the correct answer is 4) Cannot discern from the information provided.

Latitude and longitudinal lines are shown on a globe of Earth as parallel and vertical lines. To determine which distance is farther, we need to compare the distance between Location B and the Equator with the distance between Location C and the Equator.

However, the latitude and longitude coordinates for Location B and the specific direction or coordinates of the Equator are not provided. Without this information, it is not possible to determine which distance is farther between Location B and the Equator or Location C and the Equator.

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To find the velocity of the particle, we need to find the derivative of the equation of motion, s = f(t), with respect to time t.

Let's denote the velocity as v(t):
v(t) = f'(t)
Given that the equation of motion is s = f(t), we need to differentiate it with respect to t:
ds/dt = f'(t)
Now, let's substitute the given values. When t = 4, we can evaluate the derivative at that point:
v(4) = f'(4)

To find the speed at t = 4, we need to find the magnitude of the velocity. The speed is always positive, regardless of the direction of motion.

Therefore, we can take the absolute value of the velocity:
speed = |v(4)|

Please note that without the specific equation of motion, it is not possible to provide the exact values for velocity and speed at t = 4.

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The average pressure does this wave exert on a totally reflecting surface is 5.13*10^-12 pa.

As a result of the momentum transfer between the electromagnetic field and the object, the idea of radiation pressure is created. Since electromagnetic waves carry transport momentum, this force can be observed.

The mechanical pressure that is applied to any surface as a result of the electromagnetic field and the object exchanging momentum is known as radiation pressure. When photons hit the object's surface in this instance, momentum is transferred.

The composition of the surface and the level of light intensity employed determine the radiation pressure on any given surface.

Given,

power=777Kw

r=4.50 Km

According to the condition given, we get

I = Pav/ A

I = 777000 w/2π(4000m)^2

I = 7.7 *10^-3 w/m²

Average pressure is given by

PaV = 2I/c

Pav = 2* 7.7 x 10^-3/3*10^8

Pav = 5.13*10^-12 pa.

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Answer:

A wedge can split an object apart

A  lever is the seesaw

inclined plane is a ramp

a pulley can reduce the amount of friction

wheel and axle is the rope one

Explanation:

Following are the matches:

Simple machines are basic mechanical devices that can help make work easier by reducing the amount of force or effort needed to do a task. They are usually the most basic forms of machines, often made up of only one or two parts, and are used to change the direction or magnitude of a force.

There are six types of simple machines:

Simple machines are the building blocks for more complex machines, and they are used in many everyday devices and equipment to make work easier and more efficient.

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