How many statements are correct? 0 1 2 3 4
Statement A. Increasing a moving average window will enhance noise dampening.
Statement B. Decreasing a moving average window will enhance impulse response.
Statement C. Increasing the smoothing constant in exponential smoothing will enhance impulse response.
Statement D. Decreasing the smoothing constant in exponential smoothing will enhance noise dampening.

The velocity of the canoe is  1.7 m/s.

Momentum in physics is the products of mass and velocity. Now we have to find momentum with the formula; p = mv

a) Initial momentum = (15)8 m/s + 135 = 255 Kgms-1

b) Since momentum is conserved, the total momentum after throwing the anchor is still 255 Kgms-1

c) The final velocity of the boat is obtained from;

255 Kgms-1 = (15Kg + 135 Kg) v

v = 255 Kgms-1/(15Kg + 135 Kg)

v = 1.7 m/s

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Answer:

3 meters

Explanation:

add up dum boi

Answer:

Explanation:

F = ma

m = F/a

m = 107.2/1.6 = 67 kg

so Naoki's mass must be the total mass - mass of the bike

so her mass is 67 - 9 = 58 kg...B

Answer:

3.125×10²¹ N/C

Explanation:

Electric Field: This can be defined as the force experienced per unit charge. The S.I unit of electric Field is N/C

Applying,

E = F/q.................. Equation 1

Where E = Electric Field, F = Force experienced, q = Charge of an electron.

From the question,

Given: F = 500 N, q = 1.6×10⁻¹⁹ C

Substitute these values into equation 1

E = 500/(1.6×10⁻¹⁹)

E = 312.5×10¹⁹

E = 3.125×10²¹ N/C

Answer:

It's B

Explanation:

Have a good day

The planets are placed at the same distance from each other, therefore the correct answer is option B.

It is a system that collection of all the planets and spatial bodies revolving around the sun because of the gravitational pull of the sun.

Our Solar System is based on a heliocentric model in which the Sun is assumed to reside at the central point of the planetary system.

The main problem with this model, if it were going to be used to study the dimensions of the solar system is that the planets are placed at the same distance from each other, but in our solar system all the revolving planets are at variable distances from the Sun and not equidistant from each other as shown in the figure.

Thus, the correct answer is option B.

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Answer: The answer is B) False

Explanation: There are only three muscle types in the exercise physiology.

Skeletal Muscle

Smooth Muscle

Cardiac Muscle

Option A and B are correct.

We have a spinning satellite which begins to unfold two solar panels as shown in the figure.

We have to investigate which of the given statements are true.

The relation the linear velocity (v) and angular velocity (ω) of a body undergoing circular motion in the circle of radius r is -

v = rω

According to the question - two solar panels unfolded themselves. The key point to understand here is that initially when the panels were folded, each and every individual particle inside the panel were closer to the rotational axis. However, when they unfolded, each and every particle inside the panels went away from the rotational axis. In a general sense, for a individual particle inside the panel, assume that initially the its distance from center was 'r' and after unfolding it became 'R' such that R > r. Therefore, using the formula -

v = rω

ω = \(\frac{v}{r}\)

Now, ω \(\alpha\) \(\frac{1}{r}\) ,

As r increased to R, the angular velocity decreases.

Now, we know that the angular momentum (L) is given by -

L = mvr

As r increases, L increases.

Therefore, the angular momentum increases.

Hence, Option A and B are correct.

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Answer:

Average speed is calculated by dividing the total distance that something has traveled by the total amount of time it took it to travel that distance.

Speed is how fast something is going at a particular moment. Average speed measures the average rate of speed over the extent of a trip. Average speed is usually applied to vehicles like cars, trains, and airplanes. It is often measured in miles per hour (mph) or kilometers per hour (kph).

Average speed is used in all kinds of fields, including physics, astronomy, and transportation.

Let’s slow down and start with an example. If you were to drive 200 miles in two hours, you could calculate your average speed by dividing the total distance (200 miles) by the total amount of time it took (two hours), giving an average speed of 100 miles per hour. (Which means the next thing you’re going to have to calculate is how to pay the speeding ticket.)

Average speed might seem like a basic, obvious concept, but for much of history, people didn’t have much of a practical need for such a calculation (plus there were no speedometers on horses). In the 1600s, physicist and astronomer Galileo Galilei tried to calculate the speed of light by measuring how long it would take a person to see a light from across a field. It didn’t work (light is way too fast to be measured this way), but Galileo did come up with the formula distance/time = average speed. (Others probably discussed the concept before that, but Galileo usually gets the credit.)

Average speed should not be confused with instantaneous speed, which measures the speed of an object at a specific instant in time. Instantaneous speed is a physics term. In everyday life, we just call this speed, which is what the speedometer in your car tells you—exactly how fast you’re going at that moment. Speed is sometimes confused with velocity, but they are not the same. In physics, velocity measures something’s speed relative to its direction of motion.

In practical situations, average speed usually comes up in the context of transportation, such as the average speed of a train

Explanation:

hope i helped

-Zylynn

Answer: Average speed is calculated by dividing the total distance that something has traveled by the total amount of time it took it to travel that distance

Explanation:

Answer:

its A Weathering breaks down rocks; deposition leaves them in new places

Explanation:

Answer:

1. Pioneer

2. Primary

Explanation:

Pioneer Species are the first organisms to colonize barren environments.

Primary Succession is the development of an ecosystem of a barren environments!

I hope this helped! :)

Answer:

The first answer is Pioneer and I think the second is Primary

Explanation:

Answer:

The upper fixed point, or steam point, is the temperature of pure boiling water at normal atmospheric pressure. Note that the fixed points are defined using common physical phenomena so that they can be easily reproduced.

Answer:

Steam point

Explanation:

The upper fixed point, or steam point, is the temperature of pure boiling water at normal atmospheric pressure.

Answer:

P = 5880  J

Explanation:

Given that,

The mass of the block, m = 30 kg

The block is sitting at a height of 20 m.

The block will have gravitational potential energy. The formula for gravitational potential energy is given by :

\(P=mgh\\\\=30\times 9.8\times 20\\\\=5880\ J\)

So, the required potential energy is equal to 5880  J.

Answer:

c

Explanation:

A standard 1-kilogram weight is a cylinder 42.0 mm in height and 44.5 mm in diameter. The density of the material is approx \(30,368.75 kg/m^3\)

For calculating the density of the material, need to find the mass and volume of the weight. The mass of the weight is given as 1 kilogram.

For finding the volume, need to use the dimensions of the weight. The weight is in the shape of a cylinder, so use the formula for the volume of a cylinder:

\(V = \pi * r^2 * h\)

where r is the radius and h is the height.

The given diameter is 44.5 mm, which means the radius is half of that, so

r = 44.5 mm / 2 = 22.25 mm.

Convert the radius to meters by dividing it by 1000:

r = 22.25 mm / 1000 = 0.02225 m.

The height is given as 42.0 mm, which is equivalent to 0.0420 m.

Now  calculate the volume:

\(V = \pi * (0.02225 m)^2 * 0.0420 m = 0.0000329 m^3\)

Finally, calculate the density by dividing the mass by the volume:

\(density = 1 kg / 0.0000329 m^3 \approx 30,395.1365 kg/m^3\).

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Answer:

\(e.p.e = \frac{1}{2} k {x}^{2} \\ = \frac{1}{2} \times 25 \times (0.015m)^{2} \\ = 0.0028125\)

0.0028125N

The soil strength is estimated to be low, as the reinforcing rod can only penetrate 30 cm into the sand soil. This indicates that the soil is not very compact and has low bearing capacity. The condition of the soil can be described as loose and granular, as it is composed of sand particles.

Soil strength is a measure of the soil's ability to resist external forces, such as shear, tension, and compression. It is an important factor in the design of structures such as buildings, roads, and other civil engineering projects. Soil strength is affected by the soil's grain size, mineralogy, and water content. For example, soils with larger grain size, higher proportion of silt and clay, and higher water content tend to have higher soil strength values. Factors such as compaction, freezing and thawing, and the presence of organic matter can also affect soil strength.

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The star is moving away from Earth at a velocity of 1.8 x 106 m/s.

The Doppler Effect describes the shift in wavelength of a wave when the source is moving in relation to the observer. The shift can be observed in sound waves, light waves, and other waves.

The Doppler Effect can be used to determine the velocity of objects moving away from an observer, as in the case of stars moving away from Earth.

The velocity of a star moving away from Earth can be determined using the equation:

v = Δλ/λ x c, Where v is the velocity of the star, Δλ is the shift in wavelength of the spectral line, λ is the wavelength of the spectral line measured in the lab on Earth, and c is the speed of light (3.00 x 108 m/s).

In this case, the shift in wavelength of the spectral line is Δλ = 500.3 nm - 500 nm = 0.3 nm.

The wavelength of the spectral line measured in the lab on Earth is λ = 500 nm.

Plugging in these values to the equation above: v = Δλ/λ x cv = (0.3 nm / 500 nm) x (3.00 x 108 m/s) = 1.8 x 106 m/s.

Therefore, velocity of star 1.8 x 106 m/s.

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Answer:

Explanation:

Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is, the central object (right figure). It may also describe other motions such as precession or nutation of an object's rotational axis. Prograde or direct motion is more normal motion in the same direction as the primary rotates. However, "retrograde" and "prograde" can also refer to an object other than the primary if so described. The direction of rotation is determined by an inertial frame of reference, such as distant fixed stars.

Retrograde motion occurs when a planet far from another planet and from which it is seen rotates at lower speed, creating the impression that it is "retrograding" with respect to the other planet.

Early astronomers get confused as they viewed the motion in the sky because they tried to explain it in terms of the geocentric theory.

Let suppose that we have a planetary system formed by a star and two planets rotating uniformly around the star. Besides, we assume that both planets are rotating at different velocities, and that planet A is more far away from the star than planet B, then the velocity of the planet A relative to planet B is:

\(\vec v_{A/B} = \vec {v}_{A}- \vec {v}_{B}\) (1)

A retrograde motion of planet A occurs when \(\|\vec v_{A/B}\|\ne 0\) and if \(\|\vec v_{A}\| < \|v_{B}\|\) at least. In other words, retrograde motion exists when speed of planet A is less than speed of planet B, creating the impression that planet A is "retrograding" with respect to planet B.  This question is easy to solve and to explain by considering the star as an inertial framework, base of the heliocentrical model.

Early astronomers were confused and unable to explain the phenomenon due to their adherence to geocentrical model, which assumed the Earth was the center of the solar system.

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Answer:

Polonium(Po)

Explanation:

Answer:

B. polonium (Po)

Explanation:

i took the test

The resistive torque that slows the turntable is 6.92 × 10^−1 Nm.

We can use the equation:

torque = (final angular velocity - initial angular velocity) / time / rotational inertia

Where:

final angular velocity = 0 rad/s (since the turntable stops)

initial angular velocity = (33 rpm) x (2π/60) rad/s = 3.46 rad/s (convert rpm to rad/s)

time = 50 s

rotational inertia = 1.0 × 10^−2 kg m^2

Plugging in the values:

torque = (0 - 3.46) / 50 / 1.0 × 10^−2 = -6.92 × 10^−1 Nm

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The treatment most likely to use is Superficial External bean Radiation Therapy. Then the correct option is B.

The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is a packet of energy that travels and spreads out.

It has radio waves, infrared waves, visible light waves, ultraviolet rays, and microwaves.

They possess high energy even to penetrate deep within the material. the electromagnetic spectrum has a longer wavelength and less frequency.

Haley noticed a small spot on her skin that turned out to be skin cancer.

Surgery, radiation, chemotherapy, and hormone therapy can all be used to relieve signs and symptoms.

Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used.

The treatment most likely to use is Superficial External bean Radiation Therapy.

Then the correct option is B.

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Answer:

No the statement is incorrect.

Explanation:

Mathematically, force F experience of a charge particle of magnitude q in an uniform electric field E is given as

F = E/q

In uniform electric field is where the intensity of electric field remains same throughout. However, from the above equation it is clear that force experience by the charge particle also depends upon the magnitude of charge particle as well. So, with change in charge particles the force experienced by it also changes.

Answer:

Gravity,

I hope this correct

Answer:

Rust occurs when iron or its alloys, such as steel, corrode. The surface of a piece of iron will corrode first in the presence of oxygen and water.The process of rusting is a combustion reaction, similar to fire. Left in contact with oxygen, iron will react with the oxygen to form rust.

Hope this helps!!

Answer:

iron is oxidation reaction

Explanation:

it occurs when iron reacts with water and oxygen to form hydrated iron(iii) oxide

The magnitude of the maximum acceleration for the given simple harmonic motion is 200 m/s². In simple harmonic motion, the acceleration is given by the second derivative of the displacement function.

In simple harmonic motion, the acceleration is given by the second derivative of the displacement function with respect to time. Taking the derivative of x(t) = 0.5 cos(20t + φ) twice, we get the acceleration function a(t) = -20² * 0.5 cos(20t + φ), where -20² represents the angular frequency squared. The maximum acceleration occurs at the extreme points of the cosine function, which have a magnitude of 20² * 0.5 = 200 m/s². The magnitude of the maximum acceleration for the given simple harmonic motion is 200 m/s². In simple harmonic motion, the acceleration is given by the second derivative of the displacement function.

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Answer:

D.) Heat the jar in a microwave oven.

Explanation:

To increase the total energy of a system consisting of a jar full of water heat the jar in a microwave oven.

When heat is transferred to the environment, the full energy content material of the system decreases. The device loses part of power in the form of warmth. When paintings is finished on the system, the energy content of the device increases.

Whilst remember receives warmer, the atoms or molecules inside the be counted move quicker. It is easy to growth the kinetic electricity in depend. You can warm a penny by using hanging it with a hammer—the blow reasons the molecules within the penny to jostle faster. In case you positioned a flame to a liquid, the liquid also will become warmer.

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Answer:

it is the questions of campus level

They have a limited supply in nature, therefore if they are used excessively, they will become exhausted.

Today, we recognise that using fossil fuels has a negative impact on the environment. Fossil fuels produce and utilise local pollutants, and their continued use permanently alters the temperature of our entire world.

Wastes from combustion sources are those that result from carbon pollution (i.e., coal, oil, natural gas). Included in this are all ash and particles taken out of the flue gas.

The fossile fuel is limited in nature. So, it should not waste energy from fossil fuels.

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