Identify which of the following forces act on the bicycle + rider system, and sort them accordingly Drag the appropriate items to their respective binsgravitynormal forcestatic fractionair resistancekinetic fractionrolling friction

Answer:

4 km/hr

Explanation:

The computation of the actual velocity is shown below:

Because the path of its paddles is opposed to the current direction, the real velocity can be determined by deducting the current velocity to its velocity while paddling

So, the actual velocity is

= Upstream - downstream

= 19 km/hr - 15 km/hr

= 4 km/hr

As we can see it is in positive, so it is an upstream direction  

Answer:

since the direction of his paddles is opposite of the the direction of the current, so the actual velocity can be calculated by subtracting the velocity of current to to his velocity when paddling

v = 19 - 15

v = 4 since the answer is positive, then the direction is upstream

Explanation:

The motion of the particles in this kind of wave will be option C that is The particles will move side to side over small areas.

A wave can be described as a disturbance that travels through a medium from one location to another location.

When Marcus plucks an outstretched coil, the coli sets into wave like motion that is oscillates to and fro. The particles of the medium do not move along the wave but just vibrate sideways about a fixed position.

The particles would move side to side over very small areas. Such type of wave is known as a mechanical wave. A Sound wave is a mechanical wave.

The particles vibrate in the direction of the motion of the wave. The wave carries forward the energy.

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Answer:

C is the correct answer. :)

Explanation:

Answer:

Explanation:

The answer to your question would be number 2 amplitude and frequency are the same so the higher the frequency the higher the amplitude. As you can see in the picture wave E has the  highest frequency. which means since A has the lowest  frequency and E has the highest frequency answer 2 would be correct the amplitude increases from A to E.

Amplitude of a wave is the strength of the wave. It is measured from the central line of the wave to the top of the crest or bottom of the trough. Thus, higher amplitude waves will gives sharp crests and troughs. Here amplitude is increasing from A to E.

Amplitude is a parameter measuring the strength of a wave. It is the maximum displacement moved by the wave from its equilibrium position. The vibrational path will be twice that of the amplitude of the wave.

As the amplitude of the wave increases its intensity increases. Both are in direct proportion with the frequency and energy of a wave. For instance the amplification of sound waves increases the intensity of waves that we hear.

The distance between two consecutive crests or troughs is the wavelength of the wave not amplitude. Amplitude is measured from the axis line to the top of the crest thus, from exact middle of the wave crest to the top or to the bottom of trough.

Thus, higher amplitude waves will gives sharp crests and troughs. Here amplitude is increasing from A to E

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Answer:

no

Explanation:

because there is nothing holding you back

Old potential energy:-

New potential energy

Option B is correct

At sea level, the thrust produced by the reciprocating engine would increase.

When an aircraft operates at higher altitudes, the air density decreases. This reduction in air density affects the performance of the engine. The thrust produced by an aircraft engine is a function of the mass flow rate of air through the engine and the velocity of the exhaust gases. At higher altitudes, the reduced air density results in a lower mass flow rate, which in turn reduces the engine's thrust output.

At sea level, where the air density is higher compared to 15,000 feet, the reciprocating engine would experience an increase in thrust. This is because the higher air density allows for a greater mass flow rate of air through the engine, leading to a more significant force being generated by the engine's exhaust gases. As a result, the thrust produced by the engine would be higher at sea level compared to the altitude of 15,000 feet.

In simpler terms, the engine would perform better at sea level due to the denser air, resulting in increased thrust output. This is why aircraft typically experience greater takeoff performance and climb rates when operating at lower altitudes.

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The acceleration of a particle is a= (-1.6 v1/2) m/s². The initial velocity of the particle is u = 8 m/s.

Now, let's use the formula: 2as = v² - u², where a = (-1.6v^(1/2)) m/s², u = 8 m/s, and v = 0 m/s 2 × (-1.6v^(1/2)) × s = 0 - 8²s = 64 / (2 × 1.6v^(1/2)) = 20v^(1/2)/4 = 5v^(1/2) meters.

This is the distance travelled by the particle before it stops.

We know that the final velocity of the particle is 0 m/s. The initial velocity of the particle is 8 m/s.

The acceleration of the particle is a = (-1.6v^(1/2)) m/s².

Let's use the formula to calculate the time it takes to stop the particle. It is:v = u + at 0 = 8 + (-1.6v^(1/2)) × t t = 8 / (1.6v^(1/2)) t = 5 / v^(1/2) seconds.

This is the time taken by the particle to come to rest.

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The particle travels approximately 12.5 meters before it comes to a stop. It takes approximately 5 seconds for the particle to reach zero velocity.

To determine the distance traveled before the particle comes to a stop, we need to integrate the velocity function over time. The given deceleration is expressed as a = -1.6√v , where v is the velocity in m/s. Since the initial velocity is 8 m/s, we can write the deceleration as a = -1.6√8. Integrating the acceleration with respect to velocity gives us the equation: ∫dv/(-1.6√v ) = ∫dt. Simplifying the integral and solving for t gives us t = 5 seconds.

To find the distance traveled, we integrate the velocity function with respect to time. The velocity function is given by dv/dt = -1.6√v. Separating variables and integrating, we get ∫dv/√v  = ∫-1.6dt. Evaluating the integral and substituting the limits (from v = 8 m/s to v = 0), we find √v = -1.6t + C. Applying the initial condition v(0) = 8, we can solve for C and obtain C = √8. Plugging in the values for t and C, we get √v = -1.6t + √8. Squaring both sides and solving for v, we find v = \((1.6t - \sqrt{8} )^{2}\). Integrating the velocity function again with respect to time, we get ∫\((1.6t - \sqrt{8} )^{2}\) dt = ∫ds. Evaluating the integral and substituting the limits, we find s = 12.5 meters.

Therefore, the particle travels approximately 12.5 meters before coming to a stop.

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Answer:

a wedge.

Explanation:

it moves when you apply force to one end of the wedge.

Answer:

any black ops i started playing crysis 3 its good and gta5

Explanation:

Answer:

Mobile Legend Bang Bang

Explanation:

:) :)

Answer:

The temperature drop in both Centigrade and Kelvin are the same:

\(19.44^o\,C\), and \(19.44\,K\)

Explanation:

Start by converting 35 F and 0 F (the ends of the temp change) into Centigrades using the formula:

\(T_C=(F-32)\,\frac{5}{9} \\T_C=(35-32)\,\frac{5}{9}\\T_C=3\,*\frac{5}{9}\\T_C= \frac{15}{9} \,C\)

For 0 F:

\(T_C=(0-32)\,\frac{5}{9} \\T_C=(-32)\,\frac{5}{9}\\T_C=-32\,*\frac{5}{9}\\T_C= -\frac{160}{9} \,C\)

now, the difference of these two values is:

\(\frac{15}{9} -(-\frac{160}{9} )=\frac{175}{9} \approx 19.44^o\,C\)

Then if the temperature was \(80^o C\), then the new temperature is:

\(80^o\,C - 19.44 ^o\,C = 60.56^o\,C\)

And since the Kelvin scale differences are the same as the differences in the Centigrade scale, the temperature change in Kelvin is of the same magnitude:

\(19.44\,K\)

Answer:

Positively charged objects attract negatively charged objects.

Explanation:

This is due to a law that states 'like forces attract while unlike forces repel. This same concept applies to magnetism. If you put two similar poles together, for example; if you place two south poles together. You feel a separating force between the two poles. But if you place two opposite poles together they attract each other. Hope i helped.

Answer:

Positively charged objects attract negatively charged objects.

Explanation:

hope this helps

Answer:

(a) 3.22 m

(b) The vertical velocity, \(v_y\), at maximum height is 0 m/s, the horizontal velocity, vₓ, is 12.72 m/s

(c) The acceleration at maximum height = g = 9.81 m/s²

(d) The time it takes for the paper to reach the balcony is 1.212 seconds

(e) The horizontal range, of the paper is 15.42 m.

Explanation:

(a) Given that we re given a projectile motion, we have the following governing equations;

y = y₀ + v₀·sin(θ₀)·t - 0.5×g·t²

\(v_y\) = v₀·sin(θ₀) - g·t

Where:

y = Height of the paper

y₀ = Initial height of the paper = Ground level = 0

v₀ = Inititial velocity of the paper = 15.0 m/s

θ₀ = Angle in which the paper is thrown = 32° above the horizontal

g = Acceleration due to gravity = 9.81 m/s²

t = Time taken to reach the height h

\(v_y\) = Vertical velocity of the paper

At maximum height, \(v_y\) = 0, therefore;

\(v_y\) = v₀·sin(θ₀)·t - g·t = 0

v₀·sin(θ₀) = g·t

t = v₀·sin(θ₀)/g = 15×sin(32°)/9.81 = 0.81 seconds

y = y₀ + v₀·sin(θ₀)·t - 0.5×g·t² = 0 + 15×sin(32°)×0.81-0.5×9.81×0.81² = 3.22 m

(b) The vertical velocity, \(v_y\), at maximum height = 0 m/s, the horizontal velocity, vₓ, = 15×cos(32°) = 12.72 m/s

(c) The acceleration at maximum height = g = 9.81 m/s²

(d) The time it takes to maximum height = 0.81 seconds

The time the paper will take to fall to 1.25 m above the ground, which is 3.22 - 1.25  = 1.97 meters below maximum height is therefore given as follows;

y = y₀ + v₀·sin(θ₀)·t - 0.5×g·t²

Where:

v₀ = 0 m/s at maximum height

y = -1.97 m downward motion

y₀ = 0 starting from maximum height downwards

1.97 = 0 + 0·sin(θ₀)·t - 0.5×9.81×t²

-1.97 =  - 0.5×9.81×t²

t = (-1.97)/(-0.5*9.81) = 0.402 seconds

The time the paper will take to fall to 1.25 m above the ground = 0.81+0.402 = 1.212 seconds

Therefore, the time it takes for the paper to reach the balcony = 1.212 seconds

(e) The horizontal range, x, is given by the relation;

x = x₀ + v₀·cos(θ₀)·\(t_{tot}\)

x₀ = Starting point of throwing the paper = 0

\(t_{tot}\) = Total time of flight of the paper

∴ x = x₀ + v₀·cos(θ₀)·\(t_{tot}\) = 0 + 15×cos(32°)×1.212 = 15.42 m

The horizontal range, of the paper = 15.42 m.

No. The set up according to the illustration does not violate the law of conservation of charge.

According to this law, the total amount of electric charge in a closed system remains constant over time. In the given circuit, the battery is not creating or destroying any charge but merely acting as a source of potential difference, which drives the flow of charges (electrons) through the circuit.

The electric current flows from the battery's positive terminal, through the lightbulb, and to the negative terminal of the battery. At the same time, an equal amount of current flows out of the negative terminal, through the external circuit, and into the positive terminal of the battery. As a result, the total amount of charge within the circuit remains constant.

The battery's chemical energy is used to maintain the potential difference, which drives the flow of charges. The charge carriers (electrons) are pushed by the battery's electric field, which applies a force on them, making them move through the circuit. The battery does not accumulate or lose any charge because it continuously replaces the charge carriers that leave one terminal with an equal number of charge carriers arriving at the other terminal.

Therefore, the law of conservation of charge is not violated in this circuit, as the total amount of charge within the closed system remains constant.

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Answer:a no net force

Explanation: google lol

Answer:

12 meters per seconds......

Explanation:

60/5=12

A  car travels from rest to 60 m/s in 5 seconds, so its acceleration is 12 m/\({s}^2\) (60-0/5), and the acceleration is calculated by subtracting the final from the initial and by diving with the time.

Acceleration is the unit that describes the change in velocity, such as the quickness or slowness of the car, and when the acceleration is very high, there is a high chance of colliding and an accident occurring, but this is important for vehicles such as sports cars and racing cars. While low acceleration is used in magnetic resonance imaging in the medical field, it is also used in the industrial sector for robotics, etc.

Hence, a car travels from rest to 60 m/s in 5 seconds, so its acceleration is 12 m/\({s}^2\) (60-0/5), and the acceleration is calculated by subtracting the final from the initial and by diving with the time.

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As a woman holding her breath swims deeper and deeper beneath the water's surface , her density increases.

The density of an object is defined as its mass per unit volume. When a woman holds her breath and dives deeper into the water, the pressure increases as the depth increases. As a result, the volume of air in her lungs decreases, which in turn decreases her overall volume. However, her mass remains constant. Since her density is defined as mass per unit volume, her density increases as her volume decreases, making it easier for her to sink to greater depths.

The density of a human body is slightly less than the density of water, which means that humans tend to float in water. However, when a person holds their breath and swims deeper, the pressure of the water increases, which compresses the person's body slightly and decreases the volume of air in the lungs. This decrease in lung volume reduces the buoyancy force acting on the person's body and makes them more dense, causing them to sink deeper in the water. Additionally, the increased pressure also compresses the body tissues and fluids, which can further increase the person's density. This is why it is important for divers to wear buoyancy compensators or carry weights to help them control their depth while diving.

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Students watched a cartoon either alone or with others and then rated how funny they found the cartoon to be.

Independent Variable:  student alone or with others

Dependent Variable:   how funny student thought the cartoon was

Answer:

Independent Variable: Watching cartoon alone or with others

Dependent Variable: how funny they found the cartoon to be

Explanation:

A dependent variable is the variable being tested. The change in the value of dependent variable depends on the independent variable.

An independent variable is used to test the effects on dependent variable and its does not depend on any variable.

In the above example the dependent variable is how funny the cartoon was. This is being tested and it is tested by independent variable i.e. Students watching cartoon either alone or with others. So the cartoon is funny or not depends on watching cartoon alone or with friends.

Answer:

Current-voltage (I-V) characteristics for components

The relationship between current through, and voltage across, a component is called the current-voltage (I-V) characteristic.

Resistor at constant temperature

For a fixed resistor, the voltage is directly proportional to the current. Doubling the amount of energy into the resistor results in a current twice as fast through the resistor. This relationship is called Ohm's Law and is true because the resistance of the resistor is fixed (because the temperature does not change).

Answer:

Inertia

Explanation:

Part of Newton's Laws of Motion

The radius of Jupiter is 11.37 × 10^6 km (approx).

The correct answer to the given question is option D.

Jupiter is a giant planet in our solar system and takes 9.9259 hours to rotate on its axis. The tangential speed of Jupiter is given to be 12,293 m/s. We are required to find out the radius of Jupiter.

Given Data:

Rotation period of Jupiter, T = 9.9259 hours

Tangential speed of Jupiter, v = 12,293 m/s

Formula Used:

Radius of Jupiter, r = v × T / (2π)

Calculation:

We can find the radius of Jupiter using the above formula.

Substituting the given values in the formula, we get:

r = 12,293 × 9.9259 × 60 × 60 / (2π)r = 71,492,602.68 / (2π)r = 11,371,641.26 km ≈ 11.37 × 10^6 km.

Therefore, the radius of Jupiter is 11.37 × 10^6 km (approx).

Hence, the correct option is 69,912 km.

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Yes, the information that the sprinter's mass is 60.0 kg is needed to find the normal force and to determine the maximum acceleration.

To determine the maximum acceleration that the sprinter can achieve, we need to know the coefficient of static friction between the soles of her shoes and the track surface, as well as her weight (force of gravity acting on her).

The coefficient of static friction can be used to calculate the maximum force of friction (friction force = coefficient of static friction x normal force).

The normal force is equal to the weight of the object, which is given as 60.0 kg. So the normal force is : 60.0 kg x 9.8 m/s^2 = 588 N.

The maximum force of friction is: friction force = coefficient of static friction x normal force

= 0.754 x 588 N

= 445.5 N

The maximum acceleration can be determined by dividing the force acting on an object by its mass.

a = F / m

= 445.5 N / 60.0 kg

= 7.4 m/s^2

So the maximum acceleration the sprinter can achieve is 7.4 m/s^2

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Answer:

But if you place a clear container filled with hydrogen gas between the flashlight and the prism, gaps appear in the smooth rainbow of colors, places where the light literally goes missing. The dark absorption lines of a star at rest (left) get shifted towards red if the star is moving away from Earth (right)

Explanation:

Answer:

She took it as priority and got to work

Answer:If you mean how much heat it can transfer as a thermal mass - in order to move heat from one place to another:

Typically the relationships are given by specific heat capacity (at different temperatures) and latent heats, plus the end-point temperatures to determine which of these conversion factors are relevant.

If time comes into it, you are looking at including shape and thermal conductivity at the minimum, so you really would need to be more specific

Explanation:

Answer:

Electrons move in specific orbits in the modern model.

Explanation:

I'm still learning so, and D is not the answer.

The main difference between the cloud model of the atom and the modern model is that electrons exist in a cloud around the nucleus in the cloud model.

New theories usually don’t start “from scratch.” For example, the modern model of the atom is the result of new information added to the cloud model.

What is the main difference between the cloud model of the atom and the modern model?

The main difference between the cloud model of the atom and the modern model is that electrons exist in a cloud around the nucleus in the cloud model.

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Answer:

C. 4.0 J

Explanation:

Work is equal to the change in kinetic energy or kinetic energy final - kinetic energy initial. 1/2 mv^2 is the equation for kinetic energy. SInce the mass is the same, you don't have to include it when solving. 1/2 times 1^2 = 1/2. 1/2 times 3^2 = 4.5. 4.5 - 0.5 = 4 J

Answer: B

Explanation: it is perpendicular to a surface

Answer:

it is perpendicular to a surface

Explanation: