A high-fidelity sound system may have a frequency range that extends up to or beyond 20,000 hertz. What is the purpose of this extended range

Answer:

potential

Explanation:

Answer:

hello and thank you

Explanation:

The existence of coal beds in Antarctica is evidence that the region once experienced significant warming and was home to vast amounts of plant life.

One of the earliest hypotheses put up by geologists for how continents might migrate through time is called continental drift. The science of plate tectonics has now supplanted the theory of continental drift.

The scientist Alfred Wegener is most closely connected with the concept of continental drift. Wegener wrote a paper outlining his notion that the continents were "drifting" across the Earth, occasionally crashing through oceans and into one another, in the early 20th century. He referred to it as continental drift.

What is known about Antarctica's changing climate is that it didn't begin to cool until roughly 34 million years ago, when the continent was severed from the others which supports Continental Drift theory.

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Explanation:

W = 2940 J

m = 150 kg

t = 5 s

find P =?

P = W/t = 2940/5 = 588 watts

Power Is how much you need to work for every second, power formula is:

\(\huge \boxed{ {\sf P = \frac{W}{t} }}\)

With:

P = Power (watts)

W = Work (joule)

t = times (secon)

_________

Data Given:

Work = 2940 Joule

t = 5 Second

______

Power = ?

______

Answer:

= W/t

= 2940/5

= 2940 ÷ 5

The Power he exert is 588 watts

The displacement of the race car beyond its initial position when its velocity is 12.9 m/s is approximately 16.83 meters.

To find the displacement of the race car beyond its initial position when its velocity is 12.9 m/s, we need to integrate the given velocity function over the time interval from 0 to t, where t is the time at which the velocity reaches 12.9 m/s.

The velocity function is given by:

v(t) = 0.860 m/s^3 * t^2

To find the displacement, we integrate the velocity function with respect to time:

∫[0 to t] v(t) dt = ∫[0 to t] (0.860 m/s^3 * t^2) dt

Using the power rule of integration:

∫[0 to t] v(t) dt = 0.860 m/s^3 * (∫[0 to t] t^2 dt)

Integrating t^2 with respect to t:

∫[0 to t] t^2 dt = (1/3) * t^3

Substituting back into the displacement equation:

∫[0 to t] v(t) dt = 0.860 m/s^3 * (1/3) * t^3

To find the time (t) at which the velocity is 12.9 m/s, we can set v(t) equal to 12.9 m/s:

12.9 m/s = 0.860 m/s^3 * t^2

Rearranging the equation to solve for t:

t^2 = 12.9 m/s / (0.860 m/s^3)

t^2 ≈ 15

Taking the square root of both sides:

t ≈ √15

Now we can substitute the value of t into the displacement equation:

Displacement = 0.860 m/s^3 * (1/3) * (√15)^3

Calculating the displacement:

Displacement ≈ 0.860 m/s^3 * (1/3) * 15^(3/2)

Displacement ≈ 16.83 meters

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If a thin thread is placed between a screen and a bright source of light, a pattern of of parallel light and dark strips appears on the screen. This phenomenon is called the diffraction of light.

When a thin thread comes in the path of light waves, it obstructs the upfront of the light wave causing the change in the phase difference of the wave. Overlapping of these different waves of different phase differences cause the dark and light pattern appearance on the wall.  On the other hand, thin thread also cast a thin shadow due to the obstruction in the path of light. Pattern on the wall depends on the phase difference in the wave-upfront.

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Answer:

12000gram

Explanation:

1kg=1000gram

so, 12kg=12x1000

12kg=12000gram

Given amount=12kg

\(\boxed{\sf 1kg=1000g}\)

\(\\ \sf\longmapsto 12kg=12(1000)\)

\(\\ \sf\longmapsto 12kg=12000g\)

Answer: Most likely purple

Explanation:

Answer:

Purple?

Explanation:

I'm confused what you are asking.

Answer:

The answer is Muscular endurance

Explanation:

It is this because your seeing how long your muscles can with stand. I answered by guessing lol.

Answer:

5

Explanation:

melsun slemalawkew melsun asawkecn

The maximum height reached by the stone is approximately 60.91 meters. To determine the maximum height reached by a stone thrown straight up with an initial speed of 34 m/s, we can use the kinematic equation:

v² = u² + 2as

where v is the final velocity (which is 0 m/s at maximum height), u is the initial velocity (34 m/s), a is the acceleration due to gravity (-9.8 m/s²), and s is the displacement (maximum height).

Rearranging the equation, we get:

s = (v² - u²) / 2a

Substituting the given values, we get:

s = (0 - 34²) / (2 * -9.8)

s = 60.91 m

Therefore, the maximum height reached by the stone is approximately 60.91 meters.

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\(Option \: (b)\)

Explanation:

Second STATEMENT SAYS REGARDING TO THE CHEMICAL poison

Answer:

what does it mean for a plate to subduct?

Explanation:

Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle.

Answer:

2100 m

2804 g

4 '2 mm squares'

20,000 photos

Explanation:

1.5 km = 1500 m

1500 m + 600 m = 2100 m

2.8 kg = 2800 g

2800 g + 4 g = 2804 g

8mm tube / 2 mm squares

4 can fit

1 Gb = 1000 mb

40 Gb = 40,000 mb

40,000 mb / 2 mb = 20,000 photos

Here's all the help you need:

1).  1 km  =  1,000- m

2).  1 kg  =  1,000 g

3).  Freebie.  2 fits into 8 four times.

4).  1 mega...  =  1,000 kilo...

5).  1 Giga...  =  1,000 Mega...

Answer:

Sonic boom.

When something breaks the sound barrier. (Moves faster than sound, like lighting)

Explanation:

Try flying a plane.

Based on the distance from the Sun at which they are presumed to have formed, the objects can be ranked as follows (from nearest to farthest):

1. A typical asteroid in the asteroid belt
2. A typical Kuiper belt object
3. A typical Oort cloud object

A typical asteroid in the asteroid belt: The asteroid belt is a region of the solar system between the orbits of Mars and Jupiter, and most asteroids are thought to have formed in this region.

A typical Kuiper belt object: The Kuiper belt is a region of the solar system beyond the orbit of Neptune that contains many small icy bodies, including dwarf planets like Pluto.

A typical Oort cloud object: The Oort cloud is a hypothetical region of the solar system far beyond the Kuiper belt, where many comets are thought to originate. Oort cloud objects are believed to have formed at the very edges of the early solar system and to have been scattered to their current positions by the gravitational influence of the gas giants.

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Answer:

B

Explanation:

An attractive force will occur between the plastic rod and nearby object.

An object is placed near the plastic rod, and an attractive force is detected then the object react when near the glass rod due to presence of attractive force between them. Attraction occurs between two bodies or objects when there is presence of opposite charges on both objects.

So we can conclude that an attractive force will occur between the plastic rod and nearby object.

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A night watchman enters the local aquarium where the lights are out, and he uses his high-power flashlight to look for the fish inside.

The parallel beam of light illuminates a fish when the angle of the beam with respect to the horizontal base of the aquarium is 0 degrees.Aquariums are often used to house fish in commercial and residential settings. Aquariums can come in a variety of shapes and sizes. Aquariums are used for displaying marine and freshwater fish, as well as a variety of other aquatic life forms.The light coming from the watchman's flashlight is parallel to the horizontal base of the aquarium. It will, therefore, shine directly on the fish at a 0-degree angle. The light beam will illuminate the fish, and the fish will be visible in the dark aquarium to the night watchman. The angle between the light beam and the horizontal base of the aquarium is 0 degrees. This is the answer to the question posed.

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Plates moving at 7.3 cm/year are approximately 5.615 times faster than those moving at 1.3 cm/year.

The speed at which plates move is determined by the relative motion between tectonic plates along their boundaries. To compare the speeds of plates moving at different rates, we can calculate the ratio between their velocities.Let's consider plates moving at 7.3 cm/year and 1.3 cm/year. To find the factor by which the faster plates are moving compared to the slower plates, we divide their velocities:

7.3 cm/year / 1.3 cm/year = 5.615

In other words, for every unit of time, the faster plates cover approximately 5.615 times the distance covered by the slower plates. This difference in speed can have significant implications for geological processes such as the accumulation of strain along plate boundaries, the occurrence of earthquakes, and the formation of mountain ranges. It highlights the dynamic nature of tectonic plate movements and their influence on Earth's geology and surface features.

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Observation: The chimpanzee climbed the tall tree.

Inference: The chimpanzee must be very strong,

Explanation:

An inference differs from an observation because an inference is a guess or possible explanation about a phenomenon. On the other hand, an observation is a statement based on evidence gathered through the senses. In this context, the sentence that is an observation is "The chimpanzee climbed the tall tree" because this statement is based on visual evidence. Moreover, the inference is "The chimpanzee must be very strong" because this is just a guess to explain how the chimpanzee climbed up the tree.

Heating and cooling are the kind of energy.  The most important energy when considering the heating and cooling of a building is thermal energy. The correct option is A.

Energy is the ability to do work.

The temperature of building is increased or decreased due to the season changes. This heating or cooling is a  type of energy related to thermal.

Thus, the most important energy when considering the heating and cooling of a building is thermal energy.  The correct option is A.

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Answer:

Velocity, V = 33.33 m/s

Explanation:

Given the following data;

Mass = 180grams to kilograms = 180/1000 = 0.18 kg

Kinetic energy = 100J

To find the speed;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

\( K.E = \frac{1}{2}MV^{2}\)

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Substituting into the equation, we have;

100 = ½*0.18*V²

Cross-multiplying, we have;

200 = 0.18*V²

V² = 200/0.18

V² = 1111.11

Taking the square root of both sides, we have;

Velocity, V = 33.33 m/s

\( \bold{\underline{\underline{\underbrace{Answer}}}} \)

5 images

Explanation:

⠀

⠀

What is reflection of light?

The reflection of light is the phenomenon in which the rays of light falls on the object and change it's path.

⠀

How image is formed in plane mirror?

When you look at the mirror the image is formed behind the mirror and it is virtual. The light from the object which reaches the mirror gets reflected back.

⠀

⠀

The formula to find the no. of images between the 2 plane mirror at any angle θ.

\( \sf No. \: of \: images = \frac{360 \degree}{ \theta} - 1\)

According to the question the plane mirror is inclined at 60° angle.

Substituting the required values.

\( \sf \large \frac{ \cancel{360} \small \: \: 6}{ \cancel{60}} - 1 \\ \\ \sf \large 6 - 1 \\ \\ \boxed{ \frak{ \implies 5} }\)

The 2 plane mirror will form 5 images inclined at 60° angle.

Answer:

h = 30.61 m

Explanation:

In this problem they indicate the pressure at the bottom of the lake and the density of the water, for which they must ask what is the depth of the lake.

The pressure is given by the expression

           P = \(P_{atm}\) + rho g h

           P - P_{atm} = rho g h

The gauge pressure value is P- P_{atm} = 3 105 N / m²

          h = \(\frac{P - P_{atm}}{ \rho \ g}\)

let's calculate

          h = \(\frac{3 \ 10^5}{1000 \ 9.8}\)

          h = 30.61 m

Answer:

Levi did not apply any fertilizer to one of his plants..

Explanation:

In an experiment, there are two major groups namely: control group and experimental group. Control group is the group in an experiment that does not receive the experimental treatment i.e. the group which the independent variable is not applied to.

In this case, Levi is trying to examine the effect of fertilizer on the growth of tomato plants where he used varying amounts of fertilizer on three of the four plants he used for the experiment. The fourth plant did not receive any amount of fertilizer, which is the independent variable (variable being manipulated or changed). This means that Levi prepared the control group in his experiment by NOT APPLYING ANY FERTILIZER TO ONE OF HIS PLANTS.

Pressing a lever in the box's corner is the sole method to get rid of the shocks. The rat picks up pressing the lever quite quickly. This is an illustration of negative reinforcement.

The technique of negative reinforcement can be applied to aid in teaching particular actions.

When something unpleasant or uncomfortable is taken away in response to a stimulus, this is known as negative reinforcement.

Target behavior should gradually grow better with the hope that the unpleasant item will go away.

A rat is placed in an environment where the floor gives the rat small electric shocks. The only way to get rid of the shocks is to press a lever in the corner of the box.

The rat quickly learns to press the lever. This is an example of  negative reinforcement

Hence the given condition is an example of negative reinforcement.

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Answer:

c) A series of RC circuits.

(a) The charge of the ion is determined as 2.76 x 10⁻¹³C.

(b) The potential difference between the oil droplet’s starting point and end point is 16.28 V.

The charge of the ion is calculated as follows;

W = Fdsinθ

F = W/dsinθ

F = (3.9 × 10⁻¹²)/(0.022 x sin120)

F = 2.046 x 10⁻¹⁰ N

E = F/q

q = F/E

q = (2.046 x 10⁻¹⁰)/(740)

q = 2.76 x 10⁻¹³C

E = V/d

V = Ed

V = 740 x 0.022

V = 16.28 V

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Answer:

To calculate the initial speed of the train, we can use the principle of conservation of energy. At the beginning, the train has kinetic energy due to its motion. When the train is stopped, this kinetic energy is converted into potential energy stored in the compressed spring. We can equate the initial kinetic energy of the train with the energy stored in the spring, as follows:

(1/2) * m * v^2 = 0.48 J

where m is the mass of the train and v is the initial speed of the train.

Solving for v, we get:

v = sqrt((2 * 0.48 J) / m)

Substituting the given values, we get:

v = sqrt((2 * 0.48 J) / 2.5 kg) = 0.98 m/s

Therefore, the initial speed of the train was 0.98 m/s

The initial speed of the train can be calculated by equating the potential energy stored in the spring to the initial kinetic energy of the train.

To calculate the initial speed of the train, we can use the principle of conservation of energy. The compressed spring contains the potential energy that was converted from the kinetic energy of the moving train. Therefore, we can equate the potential energy of the spring to the initial kinetic energy of the train.

Using the formula for potential energy of a spring,  PE = (1/2)kx^2, where PE is the potential energy, k is the spring constant, and x is the displacement of the spring, we can rearrange the formula to solve for k.

The formula for kinetic energy is KE = (1/2)mv^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object. Set the potential energy of the spring equal to the initial kinetic energy of the train and solve for v. Substitute the given values and calculate the initial speed.

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