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the CAR is at UNIFORM OK .

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Explanation:Given,INITIAL velocity of the MOTORCYCLE, u = 54 km/h = 54 × 5/18 = 15 m/sFinal velocity of the motorcycle, v = 0 m/s (As brakes applied)Time taken by the motorcycle, t = 5 secondsTo Find,Distance covered by the motorcycle, s = ?Formula to be used,1st equation of motion, v = u + at3rd equation of motion, v² - u² = 2asSolution,At 1st we will find acceleration,Putting all the VALUES, we getv = u + at⇒ 0 = 15 + a × 5⇒ - 15 = 5a⇒ - 15/5 = a⇒ a = - 3 m/s²Here, the acceleration is - 3 m/s².Now, the distance covered,v² - u² = 2as⇒ (0)² - (15)² = 2 × (- 3) × s⇒ 225 = - 6s⇒ 225/6 = s⇒ s = 37.5 mHence, the Distance covered by the motorcycle is 37.5 m.

its easyExplanation:1)Density of sea WATER is more than that of river water. Consequently, as per LAW of FLOTATION, in order to BALANCE the weight of the ship, more volume of water is required for the river water having lower density to displace it. 2)in gases convection currents take place.

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ematics, the Pythagorean theorem, or Pythagoras's theorem, is a FUNDAMENTAL relation in Euclidean geometry among the THREE sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the SQUARES on the other two sides.

Vibration is a mechanical phenomenon whereby oscillations occur about an EQUILIBRIUM point. The word comes from LATIN vibrationem. The oscillations may be periodic, such as the motion of a pendulum—or random, such as the movement of a TIRE on a gravel road. EffectsVibration can cause changes in tendons, muscles, bones and joints, and can affect the nervous system. Collectively, these effects are known as Hand-Arm Vibration Syndrome (HAVS). Workers affected by HAVS commonly report: ATTACKS of whitening (blanching) of ONE or more fingers when exposed to cold.hope it helpful for you

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tion:=>Cellulose fibres, like COTTON, LINEN and viscose, easily catch fire, and the flames spread rapidly if the TEXTILE has not been impregnated with a flame retardant. The thinner the fabric, the more easily it burns. Thin fabrics made from cellulose fibres can actually be compared to PAPER, which is also cellulose-based.

The IRRIGATION system during CHOLA rule was much IMPROVED. A variety of methods were applied for it. Many wells were dug; huge tanks were constructed to COLLECT water. The kings themselves took an interest in ORGANIZING labor and resources and extensive planning was done.

Rest and MOTION are the relative terms because they depend on the observer's FRAME of reference. So if TWO different OBSERVERS are not at rest with RESPECT to each other, then they too get different results when they observe the motion or rest of a body.

ics, $ \sf \red{DECIBEL~ (dB)}$ is a unit USED to express the $ \sf \green{ratio~ of ~TWO~ values}$ of a PHYSICAL quantity.

The nature of the graph shows that velocity changes by equal amounts in equal intervals of TIME. FORA uniformly accelerated motion, velocity-time graph is always a STRAIGHT line.As we know, acceleration is equal to the slope of the graph

t SoundPleasant Sound can be defined as the sound which is feel happy . the examples of pleasant sound can be. sound of a RIVER FLOWING , WATER FALL sound , sound of birds like cuckoo ETC. Unpleasant soundUnpleasant sound can be defined as the sound which irritate us and can cause hadeche.

tion:regular vibrations MAKE a PLEASENT SOUND and are pleasent to HEAR. But irregular vibrations make noisy sounds and are not pleasent to hear.●Here ur answer!●HAVE A gr8 DAT

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eed is constant distance will VARY as time Car A moves for 2 hours @ 25kmph ---------> d = s X t -------> 50 = 25 X 2 Car B moves for 3 hours @ 25kmph ---------> d = s X t --------> 75 = 25 X 3 Here (tA / tB) = (dA / dB) -----> time ratio = distance ratio = 2 : 3 If time of two bodies or MOTION is constant, then distance will vary as speed Here (S1 / S2) = (D1 / d2) If two cars START simultaneously from opposite ends towards each other. They meet at point ‘C’ In this case distance covered by each car will vary as their speeds since they travelled for equal period. Suppose the distance AB = 900 km Speed A = 25kmph Speed B = 20kmph In this case their meeting point (C) will be (S1 / S2) = (d1 / d2) ------> 25/20 ----> 5/4 = 500 / 400 i.e. 500 kms from A

Here is full paragraph for you ☺️Explanation:Sound waves travel through the outer ear, are modulated by the middle ear, and are transmitted to the vestibulocochlear nerve in the inner ear. This nerve transmits information to the temporal lobe of the brain, where it is registered as sound.Sound that travels through the outer ear impacts on the eardrum, and causes it to vibrate. The three ossicles bones transmit this sound to a second window (the oval window) which protects the fluid-filled inner ear. In detail, the pinna of the outer ear helps to focus a sound, which impacts on the eardrum. The malleus rests on the membrane, and receives the vibration. This vibration is transmitted along the incus and stapes to the oval window. Two small muscles, the TENSOR tympani and stapedius, also help modulate noise. The two muscles reflexively contract to dampen excessive vibrations. Vibration of the oval window causes vibration of the endolymph within the vestibule and the cochlea.[9]The inner ear houses the apparatus NECESSARY to change the vibrations transmitted from the outside world via the middle ear into signals passed along the vestibulocochlear nerve to the brain. The hollow channels of the inner ear are filled with LIQUID, and contain a sensory epithelium that is studded with hair CELLS. The microscopic "hairs" of these cells are structural protein filaments that PROJECT out into the fluid. The hair cells are mechanoreceptors that release a chemical neurotransmitter when stimulated. Sound waves moving through fluid flows against the receptor cells of the organ of Corti. The fluid pushes the filaments of individual cells; movement of the filaments causes receptor cells to become open to receive the potassium-rich endolymph. This causes the cell to depolarise, and creates an action potential that is transmitted along the spiral ganglion, which sends information through the auditory portion of the vestibulocochlear nerve to the temporal lobe of the brain.[9]The human ear can generally hear sounds with frequencies between 20 Hz and 20 kHz (the audio range). Sounds outside this range are considered infrasound (below 20 Hz)[10] or ultrasound (above 20 kHz)[11] Although hearing requires an intact and functioning auditory portion of the central nervous system as well as a working ear, human deafness (extreme insensitivity to sound) most commonly occurs because of abnormalities of the inner ear, rather than in the nerves or tracts of the central auditory system.

Chemistry is the scientific STUDY of the PROPERTIES and behavior of matter. It is a natural science that covers the elements that make up matter to the COMPOUNDS composed of ATOMS, molecules and ions: Explanation:GUD mrng♥️#queen♥️

Newton’s FIRST law of motion is undeniable and applies all kinds of forces. It must also apply on magnetic force. When an electromagnet interacts with a permanent magnet, force of permanent magnet is also present in the system. In ACCORDANCE with the first law motion, we must calculate magnetic forces of both of the electromagnet and permanent magnet to DEDUCT “potential amount of resultant force”. If the same quantity of the potential resultant force does not appear as output power, we must investigate about the lost part of the potential resultant force. If a fraction of potential amount of resultant force disappears, there must be sufficient reason of the DISAPPEARANCE. Once the reason is explored, it must be INVESTIGATED whether the elimination of the reason is possible or not.

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tion:1. total FORCE EQUALS 2000 N in the OPPOSITE direction

Given :- Mass of a car, m = 480 kg Initial velocity of the car, u = 54 km/h = 5/18 × 54 = 15m/s Final velocity = 0 m/s Time = 10 seconds To Find :- Force applied by the brakes Formula to be USED :- 1.  ACCELERATION = Final velocity - Initial velocity/Time 2. Force = mass × acceleration Solution :- Putting all the values, we get ⇒ Acceleration = v - u/t ⇒ Acceleration = (0-15)/10 ⇒ Acceleration =  15/10 ⇒ Acceleration = 1.5 m/s² We have to find Force, So putting Acceleration VALUE on 2nd formula. ⇒ Force = mass × acceleration ⇒ Force = (480 × 1.5) Newton ⇒ Force = 720 Newton. Hence, the force applied by the brakes is 720 Newton.Explanation:

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0.045 km/hr HOPE it will be HELPFUL

what to findExplanation:

Physical properties: Matter has mass and volume, as demonstrated by this concrete block. You can observe its mass by feeling how heavy it is when you try to pick it up; you can observe its volume by looking at it and NOTICING its size. Mass and volume are both examples of extensive physical properties.CHEMICAL PropertiesRemember, the definition of a chemical PROPERTY is that measuring that property must lead to a change in the SUBSTANCE’s chemical structure. Here are several examples of chemical properties:

re 2 TYPES of FRICTION STATIC Friction DYNAMIC Friction