the measure of the average kinetic energy of individual molecules is referred to as group of answer choices none of these. thermal energy heat temperature internal energy

Answer:

y = 1

Explanation:

We need to see the equation given

y = 10/x

So we need to replace the value of x = 10 into the equation.

y = 10/10

y = 1

Answer:

whrn a human breath it absorb15 % of oxygen whereas when a bluewhale breathes it can absorb 90% and breath out 10 %

There are some similarity between some natures of blue whales and humans. Both are respring from air. Similarly the immunity systems and chewing mood of food in both have slight similarities.

Blue whales are fish like organisms living in deep oceans or seas. They are the known largest animal in the world. Blue whales are mammals and not like other small aquatic organisms.

The immunity system in blue whales are similar to those of humans. And moreover some studies shows that their tRNA genes functions similar to those in human.

Blue whales breathe from air and not from the water. Similarly they chew food sometimes similar to humans. Some studies have reported that the evolution of humans and blue whales had exhibited some common factors with respect to the survival and immunity.

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The force diagram of the player has been shown in the image attached here.

The force diagram of a player sliding to a stop depends on the specific situation and factors such as the player's mass, velocity, and the surface on which they are sliding. However, we can make some generalizations based on common assumptions and considerations.

We know that the force of kinetic friction that is sliding the player to a stop would tend to have a higher magnitude as shown by the force diagram.

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The size of the electric current is 155 Amperes.

Calculation:

I = Q / t

I = 93.0 C / 0.601 s

I = 155 C/s

I = 155 A

Electric current is the flow of charged particles such as electrons and ions, that travel through a conductor or space. It is measured as the net flux of charge to the surface or control volume. Electricity starts with atoms.

Atoms are made up of protons neutrons and electrons. Electricity is generated when electrons are moved from atom to atom by an external force. The flow of electrons is called current. Current refers to the flow of current in an electronic circuit and the amount of current that flows through the circuit.

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The magnitude of the charge is 1.05 x 10⁻¹⁰C.

The number of elementary particles needed is 6.56 x 10⁸.

The capacitance of the parallel plate capacitor is 8.8 x 10⁻¹²F.

1) The distance between the charges, r = 1 m

Electrostatic force between the charges, F = 1 N

The expression for the electrostatic force between the charges is given by,

F = (1/4πε₀)q²/r²

where ε₀ is the constant called permittivity of free space.

So,

1 = 9 x 10⁹ x q²/1²

Therefore, the magnitude of the charge,

q = √(1/9 x 10⁹)

q = 1.05 x 10⁻¹⁰C

2) The number of elementary particles needed to create this charge,

n = q/e

n = 1.05 x 10⁻¹⁰/(1.6 x 10⁻¹⁹)

n = 6.56 x 10⁸

3) potential difference between the capacitor plates, V = 12 V

Charge applied to the capacitor plate, q = 1.05 x 10⁻¹⁰C

So, the capacitance of the parallel plate capacitor,

C = q/V

C = 1.05 x 10⁻¹⁰/12

C = 8.8 x 10⁻¹²F

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Answer:

B) a leaf blown from a tree by the wind

Answer:

the answer is B A leaf being blown from a tree by the ground

Answer:

To find the required values, we can use the Manning's equation for open channel flow:

Q = (1/n) * (A * R^(2/3) * S^(1/2))

Where:

Q is the discharge (flow rate)

n is the Manning's roughness coefficient

A is the cross-sectional area of flow

R is the hydraulic radius

S is the slope of the channel

We are given:

Diameter of the culvert (d) = 3.00 ft

Depth of uniform flow (y) = 1.6200 ft

Slope of the channel (S) = 0.0012 ft/ft

Manning's roughness coefficient (n) = 0.025

We can calculate the required values as follows:

Cross-sectional area (A) of flow:

Since the culvert is circular, the cross-sectional area can be calculated using the formula:

A = (π/4) * d^2

A = (π/4) * (3.00 ft)^2

Hydraulic radius (R):

The hydraulic radius can be calculated as:

R = A / P

where P is the wetted perimeter of the flow.

For a circular culvert, the wetted perimeter is equal to the circumference of the circle:

P = π * d

Now, we can substitute the calculated values into the Manning's equation to find the discharge (Q).

Once we have the discharge (Q), we can calculate the velocity (V) using the formula:

V = Q / A

The required values are:

(a) Discharge (Q)

(b) Velocity (V)

Let's calculate these values:

(a) Discharge (Q):

A = (π/4) * (3.00 ft)^2

P = π * 3.00 ft

R = A / P

Q = (1/n) * (A * R^(2/3) * S^(1/2))

(b) Velocity (V):

V = Q / A

By substituting the calculated values into the equations, we can find the answers.

The first eqn will be used,

x = x0 + v0t + 1/2at²

where, x = distance

a = uniform acceleration

t = time

12 = 1/2*9.8 *t²

24 = 9.8 * t²

t = 1.56 s.

The balloon will hit the ground after 1.0s of falling.

The 1st eqn was used because of the values provided which were the distance and the acceleration due to gravity. The 2nd eqn has final velocity and initial velocity which couldn't be compared from the data given.

Answer:

Mitochondria and chloroplast are organelles found in a plant cell. However, chloroplast is absent in an animal but mitochondria is found in both. Mitochondria generates energy for the cell in the form of ATP using oxygen and nutrients. Chloroplast is the site for photosynthesis in a plant cell.

We will have the following:

First, we remember that:

So:

So, the change in length of the rod is approximately 4.41 mm.

The motion of the Soyuz capsule after it breaks free of the ISS but before the panicked astronaut retrieves it can be described as an initial state of zero velocity and a free-fall motion caused by gravity.

When the Soyuz capsule breaks free of the ISS, it has an initial velocity of zero relative to the ISS. Since there is no air resistance in space, the only force acting on the capsule is gravity, which causes it to fall towards the Earth. The motion of the capsule can be described as a free-fall motion until some other force, such as atmospheric drag, slows it down or stops it.

Option B. The mechanical advantage of a handle on a water well that requires 5 newtons of force to lift a 40-Newton bucket of water is 8.

Mechanical advantage is a measure of the force amplification completed by means of the usage of a device, mechanical tool or gadget device. The device trades off input forces towards motion to gain a preferred amplification in the output pressure.

The version for this is the regulation of the lever. The mechanical advantage is the degree how which tons of force is increased with the aid of using a device or gadget. it is equal to the pressure exerted with the aid of the tool or system divided via the carried-out effort.

calculation:-

Mechanical advantage = load/effort

                                       = 40/5

                                       = 8

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Answer:light

Explanation:

Answer:

Eye function renders you the sense of sight. They convert light into electrical signals. Afterwards, the brain deciphers these electrical signals into images. Properly working healthy eyes are able to perform the following functions.

Explanation:

The volume of the sprinkler for the given water supply is V1 = 0.32m/s, by using Bernoulli's equation.

According to Bernoulli's principle of fluid dynamics, a fluid's speed increases at the same time as its static pressure or potential energy decreases. The Bernoulli equation is regarded as the definition of energy conservation for flowing fluids. This is thought to be the qualitative behaviour that reduces pressure in high-velocity zones. Also, referred to as the Bernoulli effect.

Calculations:

Using continuity equation, Bernoulli's equation.

A1×V1 = A2×V2

Where,

A1 = area of the supply pipe

V1 = volume of supply pipe

A2 = area of sprinkler

V2 = volume of sprinkler

Given,

Diameter of supply pipe = 2.5cm therefore radius = 1.25cm.

Diameter of sprinkler = 0.5cm therefore radius = 0.25cm.

V1 = (A2×V2) /A1

V1 = (π \(r_{2}\)²× V2) / (π \(r_{1}\)²)

V1 = {π (0.25) ² × 8} / { π (1.25) ²}

V1 = 0.32m/s.

Hence, the volume of the sprinkler for the given water supply is V1 = 0.32m/s, by using Bernoulli's equation.

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When performing the egg-toss game, moving your hand forward to meet the egg will be more likely to break the egg than moving your hand backward.

When the hand forward to meet the egg and it will be more likely to break because the forward motion creates a sudden stop when your hand meets the egg, causing a greater force of impact on the egg. Moving your hand backward, on the other hand, creates a smoother motion and reduces the force of impact on the egg. Therefore, it is recommended to move your hand backward when catching the egg in the egg-toss game to decrease the likelihood of the egg breaking.

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Answer: D

Rocket engine igniting is chemical energy when he in turn makes it launch and move which is kinetic energy

The wavelength of the wave moving with speed of 0.5 m/s and frequency of 50 Hz is 0.01 m.

Wavelength represents the distance between two successive crests or troughs of the wave.

Wavelength is calculated as follows:

λ = v / f

where λ, v, and f represent the wavelength, velocity, and frequency of the wave respectively.

v = 0.5 m/s

f = 50 Hz

Calculating the wavelength based on the above data:

λ = 0.5 / 50 = 0.01 m

Hence, the wavelength of the wave moving with speed of 0.5 m/s and frequency of 50 Hz is 0.01 m.

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The wavelength of the wave is 0.01m.

Given,

Speed of the wave, c  = 0.5m/s.

Frequency of the wave, u = 50Hz.

Frequency is the number of complete vibration cycles of a medium in one second. And wavelength is the distance over which the waveshape repeats .

Now we have an equation frequency of an electromagnetic wave u  = c/l. Wher u is the frequency of the waveform, c is the speed at which the wave is propagating and l is the wavelength.

Thus we can obtain wavelength l = c/ u = 0.5/50 = 0.01 meter.

Similarly, time period T can be obtained from this.

T= 1/u.

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(a) Capacitance is =  1.10 x 10^-9 C (b) Magnitude is 2.75 x 10^-7 (c) Energy stored is 3.13 x 10^-6 J (d) New Capacitance is 2.95 x 10^-8 C (e) Charge on each plate is 7.38 x 10^-7 C (f) Energy is  3.70 x 10^-6 J (g) Max. voltage is 8.17 KV.

(a) The capacitance C of a parallel plate capacitor is given by the formula:

C = ε0 x A / d

where ε0 is the vacuum permittivity (8.854 x 10^-12 F/m), A is the area of the plates (0.80 m^2), and d is the separation between the plates (0.040 mm = 0.040 x 10^-3 m).

C = 8.854 x 10^-12 F/m x 0.80 m^2 / (0.040 x 10^-3 m) = 1.10 x 10^-9 F

So, the capacitance of the capacitor is 1.10 x 10^-9 F.

(b) The charge on each plate Q can be found using the formula:

Q = C x V

where V is the voltage applied to the capacitor (25 V).

Q = 1.10 x 10^-9 F x 25 V

= 2.75 x 10^-7 C

So, the magnitude of the charge on each plate is 2.75 x 10^-7 C.

(c) The energy stored in the capacitor can be calculated using the formula:

Energy = (1/2) x C x V^2

Energy = (1/2) x 1.10 x 10^-9 F x 25 V^2

= 3.13 x 10^-6 J

So, the energy stored in the capacitor is 3.13 x 10^-6 J.

(d) The new value of capacitance can be calculated using the formula:

C = εr x ε0 x A / d

where εr is the relative permittivity (310).

C = 310 x 8.854 x 10^-12 F/m x 0.80 m^2 / (0.040 x 10^-3 m)

= 2.95 x 10^-8 F

So, the new value of capacitance is 2.95 x 10^-8 F.

(e) For a voltage of 25 V, the charge on each plate can be found using the formula:

Q = C x V

Q = 2.95 x 10^-8 F x 25 V = 7.38 x 10^-7 C

So, the charge on each plate is 7.38 x 10^-7 C.

(f) The energy stored in the capacitor can be calculated using the formula:

Energy = (1/2) x C x V^2

Energy = (1/2) x 2.95 x 10^-8 F x 25 V^2

= 3.70 x 10^-6 J

So, the energy stored in the capacitor is 3.70 x 10^-6 J.

(g) The maximum voltage that can be placed across the capacitor can be calculated using the formula:

Vmax = d x ε x E / ε0

where ε is the dielectric constant (310), E is the electric field strength (8.0 kV/mm), and d is the separation between the plates (0.040 mm = 0.040 x 10^-3 m).

Vmax = 0.040 x 10^-3 m x 310 x 8.0 kV/mm / (8.854 x 10^-12 F/m)

= 8.17 kV

So, the maximum voltage that can be placed across the capacitor is 8.17 kV.

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Answer:

D. All bulbs will go out

Explanation:

This is a series circuit. If one bulb goes out, all the other bulbs will not light since it is now an incomplete circuit. The circuit cannot flow to the other bulbs since one bulb is out which will prevent current from flowing to the rest of the circuit.

Based on the given information, mild steel requires the greatest load to cause it to extend when behaving elastically. This is because mild steel has the highest Young's modulus of elasticity among the three materials listed.

Young's modulus of elasticity is a measure of the stiffness of a material and indicates how much the material will deform under a given load. The greater the modulus, the stiffer the material, and the more load it can withstand before it begins to deform.

Cast iron is the first material to display inelastic behavior. This is because cast iron has a lower yield strength than mild steel or concrete. Yield strength is the maximum stress that a material can withstand before it begins to deform plastically (in a non-recoverable way). Since cast iron has the lowest yield strength among the three materials listed, it will be the first to exhibit inelastic behavior under load.

The material with the highest spring constant is mild steel. Spring constant is a measure of the stiffness of a spring and indicates how much force is required to compress or stretch it by a given distance. Since mild steel has the highest Young's modulus of elasticity, it will also have the highest spring constant.

The energy stored by cast iron at its maximum extension is greater than the energy stored by concrete at its maximum extension. This is because the area under the stress-strain curve (which represents the amount of energy absorbed by the material) is greater for cast iron than for concrete. This means that cast iron can absorb more energy before reaching its maximum extension, and therefore store more energy overall.

In a distance-time graph, the vertical axis represents distance traveled, and the horizontal axis represents time taken. The slope of the graph represents the speed of the object. A steeper slope indicates a higher speed, while a flatter slope indicates a lower speed.

The speed of a moving object is rarely constant. When an object is in motion, its speed can change due to various factors such as acceleration, deceleration, and changes in direction.

The typical speeds of walking, running, and cycling depend on various factors such as the terrain, fitness level, and distance traveled. When measuring the speed of an object, it is important to distinguish between average speed and instantaneous speed. Average speed is the total distance traveled divided by the total time taken. Instantaneous speed, on the other hand, is the speed at a particular instant in time. .

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Answer:

1714N

Explanation:

The change in momentum of an object is the product of mass and the change in velocity

The magnitude of the netforce can be calculated using 12kg/7.0ms

But we can convert 7ms to "s" = 7× 10^-3s

F= Force = 12/7×10^-3= 1714N

Hence, the magnitude of the net force on the punching bag is 1714N

This is because at 10 Pa, the boiling point of water is significantly lower than 100°C, and as the temperature is decreased, the water vapor would condense into liquid water before freezing into solid ice.

The boiling point is the temperature at which a substance changes from its liquid state to its gaseous state. At the boiling point, the pressure of the vapor above the liquid is equal to the pressure of the surrounding atmosphere. The boiling point is a physical property of a substance and varies depending on the chemical composition of the substance, the surrounding pressure, and other factors.

The boiling point is an important parameter in many industrial and laboratory processes, as it can determine the conditions under which a substance can be purified, distilled, or separated from other substances. It is also a critical factor in cooking, as the boiling point of water determines how quickly food cooks and at what temperature it can be sterilized.

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Answer: I think we need scale because everything else that is relavent in our lives would just Vanish

Explanation: I said it in the answer

Scale factor is the proportion of an original object's scale to a new one that is a representation of it but is a different size (bigger or smaller).

It is important to specify how much the shape has grown when describing expansion. For instance, a scale factor of 3 indicates that the new shape is three times as large as the original. The shape will be smaller if the scaling factor is a fraction. Reduction is the term for this. So, a scaling factor of 1/2 indicates that the new shape is equal to half of the old shape.

A fantastic approach to perceive enormous real-world things in a tiny space or enlarge small ones to make them easier to see is by scaling them. The following is accomplished using the scale factor: In geometry, create a figure like this. Make a scale replica. Make scale models and drawings for equipment and buildings. Reduce huge areas to tiny specks

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Metals have shiny apperances

The wavelength of light is 62.8nm.

Wavelength:

The wavelength is the spatial period of a periodic wave- the distance over which the wave's shape repeats.

Formula to calculate Energy:

E = hc/λ

E = energy = 1.91 × \(10^{6}\) J

h = 6.626 ×\(10^{-34}\)

c = 3 × \(10^{6}\)

Here we have to find the value of wavelength:

Putting the values in the equation,

λ = hc/ E

  = ( 6.626 ×\(10^{-34}\)) ( 3× \(10^{8}\)) / 1.91 \(10^{6}\)

  = 62.8 nanometer

Therefore the wavelength of light is 62.8nm.

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The correct answer to this question is: C. A negative feedback system capable of correcting 3/4 of the initial disturbance to the system

Explanation: The feedback gain of a control system is calculated as the amount of correction divided by the remaining error of the system. A feedback gain of −3.0 means that 3/4 of the initial error was corrected by the system. For example, if the initial error was 4 units and 1 unit of error remains after correction, then the amount of correction is −3 (from 4 to 1 ), the remaining error is 1 , and the feedback gain is -3.0.

A feedback gain of -3.0 indicates that the control system is a negative feedback system and is capable of correcting 3/4 of the initial disturbance to the system. A negative feedback system is a type of system that is self-regulating. It works by comparing the output of a system to the desired output, and using the difference to make adjustments to the system. The adjustments are made in such a way as to reduce the difference between the desired output and the actual output.

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