A bicyclist travels the first 1600 m of a trip at an average speed of 8 m/s, travels the next 1200 m in 90 s and spends the last 50 s at a speed of 15 m/s. Find the average speed of the bicyclist for this trip.

a. 10.44m/s
b. 15 m/s
c. 30 m/s
d. none of the above

Answer:

the heating method in here is conventional heating due to the warn air goes to the top bunk whereas the cold air sinks down

Answer:

Damp Proofing:

Explanation:

The presence of damp proofing is very necessary to maintain the health of a structure. DPC plays an important role in all types of buildings and it should be necessary to know about the importance, requirements, and properties of DPC. In many of the buildings all over the world, the rising damp may be due to a damaged damp-proof course, or sometimes, there may be not any damp proof course in a building.

The two objects that will  have the greatest gravitational force between them are:

Mass of object 1 = 22 kg

Mass of object 2 = 16 kg

Distance between objects = 28 m

Gravitational force- It is an appealing power that exists between all items with mass; an article with mass draws in one more particle with mass; the size of the power is straightforwardly corresponding to the majority of the two articles and is contrarily relative to the square of the distance between the two particles.

It is given by:

F = Gm1m2/r2

So, for the highest value of gravitational force, there must be greater mass and lesser distance.

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Answer:

one fourth of accelerattion, its obvious

Explanation:

A specific net force is applied to an object, and it causes a certain acceleration. If the same net force is applied to a new object with four times the mass, the acceleration of the more massive object would be one-fourth of the initial acceleration.

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

The mathematical expression for Newton's second law is as follows

F = m × a

As given in the problem statement if a specific net force is applied to an object, it causes a certain acceleration. If the same net force is applied to a new object with four times the mass,

Since the force is the same and the mass is four times the initial mass, the acceleration would be one-fourth of the initial acceleration.

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X rays and gamma rays have so much energy that they cannot be reflected in the same way as visible light.

Gamma rays are a type of electromagnetic radiation with the highest frequency and energy in the electromagnetic spectrum. They are produced by the decay of atomic nuclei and are extremely penetrating, meaning they can easily pass through many materials including human tissue. Gamma rays have no charge and no mass, and travel at the speed of light. They are emitted from a variety of natural and artificial sources, such as cosmic explosions, nuclear reactors, and medical imaging equipment.

Gamma rays are used in many applications, including medical diagnostics and treatments, food irradiation, and materials testing. They can also be used to sterilize medical equipment, prevent spoilage of fruits and vegetables, and improve the performance of electronic devices.

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Answer:

Explanation:

ANSWER

2304 mg

EXPLANATION

The rate is given in mg per minute. To find how much the brain's mass increases in one day we have to find how many minutes are in a day.

Assuming that a day has 24 hours and 1 hour has 60 minutes:

One day has 1440 minutes. Then, in one day the brain's mass increases:

The newborn baby's brain's mass increases 2304 mg in one day.

Answer:

You can describe the motion of an object by its position, speed, direction, and acceleration. An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move.

Explanation:

The probability of error (Pe) can be computed for a digital signal with white Gaussian noise and a matched filter, based on the signal's characteristics and the power spectral density of the noise.

To calculate the probability of error (Pe) for a digital signal with white Gaussian noise and a matched filter, we need to consider the signal's characteristics and the power spectral density of the noise. In this case, the signal is a unipolar non-return to zero (NRZ) signal with two levels: s0₁ = +1 volt and s0₂ = 0 volt. The bit rate is 1 Mbps.

The matched filter is used at the receiver to maximize the signal-to-noise ratio (SNR). It helps in detecting the signal by correlating it with the received waveform. By using the matched filter, we can improve the receiver's ability to discriminate between the signal and noise.

The power spectral density of the white Gaussian noise, denoted as N0/2, is given as \(10^(^-^8^)\) Watt/Hz. This represents the average noise power per unit bandwidth. The thermal noise assumption implies that the noise is due to random thermal fluctuations in the receiver's components.

To calculate the probability of error, we can use the Q function, which represents the area under the tail of the Gaussian distribution. The Q function can be implemented in Matlab to obtain the Pe for the given signal and noise characteristics. Using the Q function, we can determine the likelihood of an error occurring in the received signal.

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Answer:

action and reaction forces.

Explanation:

Newton's first law of motion states that "An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." Objects tend to "keep on doing what they're doing." In fact, it is the natural tendency of objects to resist changes ...

Answer:

It looks like its moving north.

Explanation:

Each capacitor in the series combination would have a charge of 2.5 μC. This is because, in a series combination of capacitors, the charge on each capacitor is the same.

In a series combination of capacitors, the same amount of charge is stored on each capacitor. This is because capacitors in a series combination have the same potential difference (voltage) across them. Therefore, the charge on each capacitor is directly proportional to the capacitance of that capacitor. In this case, since the total charge supplied by the battery is 5.0 μC and there are two identical capacitors in series, each capacitor would have a charge of 2.5 μC.

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Answer: Down below is the answer in complete sentences!

Explanation:

PART A:

Gravity and Acceleration are two additional forces acting upon the sled.

PART B:

Gravity will affect the sled by pulling it down, since the slope of the hill is negative.

Acceleration will affect the sled by gradually increasing it's speed, since the slope is downwards, which in addition to the initial force exerted plus gravity increases the speed, thus the sled accelerates.

There are four aspects of waves that only pertain to specific types of waves. Peaks and troughs are used to describe transverse waves. Compressions and rarefactions are used to describe longitudinal waves. Medium, wavelength, amplitude, and frequency are the four qualities that both types of waves have in common.

In addition to longitudinal waves, which also move in the direction of the medium, there is another type of wave that does so: the transverse wave. While longitudinal waves are made up of compressions and rarefactions, transverse waves are made up of crests and troughs.

In longitudinal waves, localized compression and rarefaction are observed. Compressions are regions of extremely high pressure because of the near proximity of the particles. Rarefactions are regions of low pressure because to the particles' enhanced dispersion.

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Answer:

attract the magnetic ratio engine light of rock level

volume is already given man i.e 3.4 cm cube .question might be typed wrong.There should be mass instead of volume

density=mass/volume

0.845g/cmcube=m/3.4cm cube

or m=0.845*3.4=2.873cm

The rock has travelled a distance of 180 meters in 6 seconds.

To find the distance travelled by the rock, we can use the equation for displacement in a uniform gravitational field:

d = 1/2 * a * t^2

Where d is the distance travelled, a is the acceleration, and t is the time elapsed. Plugging in the given values for acceleration (10 m/s^2) and time (6 seconds), we get:

d = 1/2 * 10 * 6^2

Simplifying the equation, we get:

d = 180

Therefore, the rock has travelled a distance of 180 meters in 6 seconds.

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Answer: The angle of incidence equals the ray of reflection. So this law states that any ray of light that strikes an object will reflect off the object such that the striking or incident angle is identical to the reflecting angle (as measured from the normal).

Explanation:

Answer:

The correct answer is B. Algae and fungi are biotic; temperature and rainfall are abiotic.. FURTHER EXPLANATION. An ecosystem consists of all living and non-living factors in an environment that interact and that are interdependent with each other.. All living things or factors in an ecosystem are called biotic factors.Examples include organisms like plants, animals, humans, etc.

Explanation:

Answer:

This must be harder than it appears or I'm missing something, but as far as I know y=5

Explanation:

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

Answer:

Which eye structure has the greatest effect on light refraction? ... They are the ciliary muscle, which controls the shape of the lens for accommodation, and the iris, the pigmented ring of muscles that regulates the amount of light entering the eye.

Explanation:

The main answer is:The volume of water displacement of the floating oil rig is 339,394 cubic feet.Explanation:A floating oil rig is anchored in the seabed with cables giving a net pull of 2,250,000 lbf down. Here is how to determine how large a water displacement volume that leads to:

Let us recall the principle of Archimedes: It states that "when an object is fully or partially immersed in a liquid, it experiences an upward force that is equal to the weight of the liquid displaced."The upward force exerted on the floating oil rig is equal to the weight of the water displaced by it, which can be determined using the following formula:Upward force = Weight of water displacedThe formula for the weight of water displaced is:Weight of water displaced = Volume of water displaced × Density of waterwhere

:Volume of water displaced = VDensity of water = ρWe know that the upward force exerted on the oil rig is equal to the net pull of the cables, which is 2,250,000 lbf down. This is also the weight of the oil rig. Therefore, we can say that:Upward force = Weight of water displaced2,250,000 lbf = V × ρ × gwhere:g = acceleration due to gravity = 32.2 ft/s² (this is the value used in the United States)ρ = density of water = 62.4 lb/ft³ (this is the value used in the United States)Solving for V:V = 2,250,000 lbf / (ρ × g)V = 2,250,000 lbf / (62.4 lb/ft³ × 32.2 ft/s²)V ≈ 339,394 ft³Therefore, the volume of water displaced by the floating oil rig is 339,394 cubic feet.

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The tension in the string is 3.51 x 10^-8 N.

The equation for the gravitational force between two masses m1 and m2 separated by a distance r is given as:

Fg = Gm1m2/r²

where G is the gravitational constant equal to 6.67 x 10^-11 N m²/kg²

To find the tension in the string, we need to find the gravitational force between the two boxes.

Since each box has 1.00 g of protons, the mass of each box is equal to the mass of the protons in each box, which is equal to 1.00 g or 0.001 kg.

The total mass of the system is 2m = 0.002 kg, where m is the mass of one box.

The distance between the two boxes is the sum of their distances from the center of the earth, which is

3.84 x 10^8 m + 384,400 m = 3.84 x 10^8 m + 3.844 x 10^5 m = 3.84 x 10^8 m (to three significant figures).

Therefore, the tension in the string is given as:

T = Fg = Gm1m2/r² = (6.67 x 10^-11 N m²/kg²)(0.001 kg)(0.001 kg)/(3.84 x 10^8 m)²= 3.51 x 10^-8 N (to three significant figures)

Therefore, the tension in the string is 3.51 x 10^-8 N.

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The magnitude and direction of the average collision force exerted on the object depend on the type of object and the type of force it experiences.

For example, if the object experiences a constant force, the magnitude of the force will be equal to the force applied and the direction will be the same as the direction of the applied force.

On the other hand, if the object is subjected to a variable force, the magnitude of the force will vary depending on the magnitude and direction of the applied force, and the direction will be the same as the direction of the applied force. In either case, the magnitude and direction of the average collision force can be determined using the equation F = ma, where F is the force, m is the mass of the object, and a is the acceleration of the object.

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Groundwater is a part of the geosphere realm, which refers to the solid Earth.

The geosphere includes all of the land, rocks, and minerals that make up the Earth's crust, mantle, and core. Groundwater is water that is stored beneath the Earth's surface in rock formations called aquifers, which are part of the geosphere.

Groundwater is an important resource for drinking water, irrigation, and industrial use, and it plays a critical role in many natural systems, such as the water cycle and the formation of landscapes such as caves, sinkholes, and canyons.

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The intensity reflection coefficient (irc) is 1.

The ratio of the intensity of the reflected wave to the incident (transmitted) wave is known as the intensity reflection coefficient.

Intensity of incident (transmitted) sound wave = 50 W/cm².

As it  is totally reflected,  intensity of the reflected sound  wave = 50 W/cm².

Hence,  intensity reflection coefficient =

intensity of the reflected sound wave ÷ Intensity of incident sound wave

= 50  W/cm² /  50 W/cm².

= 1.

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The electrical insulator is harmed by the heat.

Electrical insulation is essential as well as important. Electrical insulation is primarily used to ensure safety and prevent electric shock. During an electric shock, involuntary movement might result in fatal consequences.

A few typical insulators include wood, rubber, plastic, glass, and air.

Silicone is a widely popular all-purpose insulating material for wiring. Depending on the quality, silicone is frequently used for high-temperature applications up to 150 or 250 degrees Celsius.

Rubber is one of the best electrical insulators for forming a barrier between conductors and controlling electric currents.

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Answer:

Explanation:

Equipment manufactured by LECO(8 Corporation, St. Joseph, Michigan is warranted free from defect in material

and workmanship for a period of six months from the date of purchase. Equipment not manufactured by LECO is

covered to the extent of warranty provided by the original manufacturer and this warranty does not cover any

equipment, new or used, purchased from anyone other than the LECO Corporation. All replacement parts shall

be covered under warranty for a period of thirt days from date of purchase. LECO MAKES NO OTHER

REPRESENTATION OR WARRANTY OF ANY OTHER KIND, EXPRESSED OR IMPLIED, WITH RESPECT TO

THE GOODS SOLD HEREUNDER, WHETHER AS TO MERCHANTABILITY, FITNESS FOR PURPOSE, OR

OTHERWISE.

Expendable items such as crucibles, combustion tubes, chemicals and items of like nature are not covered by

this warranty.

LECO's sole obligation under this warranty shall be to repair or replace any part or parts which, to our

satisfaction, prove to be defective upon return prepaid to LECO Corporation, St. Joseph, Michigan. This

obligation does not include labor to install replacement parts, nor does it cover any failure due to accident, abuse,

neglect, or use in disregard of instructions furnished by LECO. In no event shall damages for defective goods

exceed the purchase price of the goods, and LECO SHALL NOT BE LIABLE FOR INCIDENTAL OR

CONSEQUENTIAL DAMAGES WHATSOEVER.

All claims in regard to the parts or equipment must be made within ten (10) days after Purchaser learns of the

facts upon which the claim is based. Authorization must be obtained from LECO prior to returning any other

parts. This warranty is voided by failure to comply with these notice requirements.

NOTICE

The warranty on LECO equipment remains valid only when genuine LECO replacernent parts are employed.

Since LECO has no control over the quality or purity of consumable products not manufactured by LECO, the

specifications for accuracy of results using LECO instruments are not guaranteed unless genuine LECO

consumables are employed in conjunction with LECO instruments. If purchaser defaults in making payment for

any parts or equipment, this warranty shall be void and shall not apply to such parts and equipment. No late

payment or cure of default in payment shall extend the warranty period provided herein.

LECO Corporation is not responsible for damage to any associated instruments, equipment or apparatus nor wil

LECO be held liable for loss of profit or other special damages resulting from abuse, neglect, or use in disregard

of instructions. The Buyer, their employees, agents and successors in interest assume all risks and liabilities for

the operation, use and/or misuse of the product(s) described herein and agree to indemnify, hold harmless and

defend the seller from any and all claims and actions arising from any cause whatsoever, including seller's

negligence for personal injury incurred in connection with the use of said product(s) and any and all damages

proximately resulting therefrom.

CAUTION

The instrument should be operated only by technically qualified individuals who have fully read and understand

these instructions. The instrument should be operated only in accordance with these instructions.

The operator should follow all ,of the warnings and cautions set forth in the manual and the operator should follow

and employ all applicable standard laboratory safety procedures.

LECO'" is a registered trademark of the LECO Corporatio