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tion:7) given,mass of you 'm'= 50kgspeed of train 'v' = 108km/h= 108×5/18mls [.: 1km/h = 5/18m/s]= 6×5m/s= 30m/sOption A:as you are waiting for your friends SINCE, you are in rest so your KINETIC energy is zero..: OPTION A IS CORRECT.OPTION B:as your friends are in train , it will appear for them you are moving.: velocity of train = velocity of you = 30m/smass of you = 50kgK.E = 1/2mv² = 1/2×50×(30)²= 25×900 J= 22500 J.: OPTION B IS CORRECTOPTION C:as option b is correct it is wrong

Therefore, Kinetic ENERGY is DIMENSIONALLY REPRESENTED as [M1 L2 T-2].

Students explore the relationship between ELECTRICITY and magnetism. ... By setting up a compass through a wire carrying an electric CURRENT, Oersted showed that moving ELECTRONS can create a magnetic FIELD. The magnetic field created by the current goes in circles AROUND the wire.Explanation:Mark me as brainliest

MCB STANDS for MINIATURE CIRCUIT Breaker Explanation:hope it's help youplease mark it as BRAINLIST

mpletely ionizes as : NaOH→Na++OH− ∴[OH−]=[NaOH]=N1000=10−3N=10−3M (∵ EQ. MASS = MOL. Mass in case of NaOH) Now, as [H3O+][OH−]=10−14∴[H3O+]=10−14[OH−]=10−1410−3=10−11 ∴pH=−log[H3O+]=−log10−11=11

No because the DISPLACEMENT of an object can be either EQUAL to or less than the distance travelled by the object. EXPLANATION:hope it's help YOUPLEASE MARK it as brainlist

force =m*h 5N(5*100)=500mass=1.5kgforce =500*1.5force =750

3,108km I HOPE its HELPFUL

tion:Heat required to raise temperature of ice from −10 o Cto0 o C ISQ 1 =MS 1 θ=10×0.5×10=50calHeat required to just melt ice at 0 o C is Q 2 =mL 1 =10×80=800calHeat required to raise temperature of water from 0 o Cto100 o C isQ 3 =ms 2 θ=10×1×100=1000calHeat .required to convert water at 100 o C into steam isQ 4 =mL 2 =10×540=5400cal Totalheat=Q 1 +Q 2 +Q 3 +Q 4 =7250calplease Mark me as Brainliest ANSWER

tion:How can I know when I should use the 3 equations of motion in problems?Ad by Cue Learn Private LimitedLearn math as logic. Not rules.Get ahead at math, get ahead at everything else. Live online CLASSES for kids in grades K-10.Learn More15 Questions and AnswersPatrick Hochstenbach, Master Theoretical Physics, Radboud University, the NetherlandsUpdated 6 years ago · Author has 2.7K answers and 2.5M answer viewsHow can I know when I should use the 3 equations of motion in problems?Originally Answered: How can I know that when I should use the 3 equations of motion in problems?The three equations of motions are:1) v = v0 + aΔt2) x = x0 + v0Δt + ½aΔt^23) v^2 = v0^2 + 2a(x − x0)These are the equations you learn in the physics class at school to calculate the velocity or end position of an object GIVEN an acceleration and a time or a distance.Let me tell you a little secret: there are no 3 equations of motion. The three THINGS you see above follow DIRECTLY from the definition of a constant acceleration in one direction. But you need a bit of calculus to see that. The 3 above are an easy way to calculate things without needing calculus.To know which one you need requires a close examination of your physics problem. E.g.Equation 1) you use when the physics teacher asks you to calculate a speed, given some actions during a period of time.Equation 2) you use when the physics teacher asks you to calculate a position, given some actions during a period of time.Equation 3) you use when the physics teachers asks you to calculate a speed, given some actions over some distance.Lets try this out!Equation 1: gives you a speed as answer and it needs a time as input.What is the speed of Jan when she travels at 10 m/s without accelerating for 10 seconds?Answer:v0 = 10 m/s ; a = 0 m/s^2 (she isn't accelerating) ; Δt = 10 sSo, v = 10 + 0 * 10 = 10 m/sWhat is the speed of Jan when she travels at 10/ms and decelerates at 10 m/s^2 for 2 seconds?Answer:v0 = 10 m/s ; a = -10 m/s^2 ; Δt = 2 sSo, v = 10 + -10 * 2 = - 10 m/s (she travels in the opposite direction)Equation 2: gives you a position as answer and needs a time as input.Jan travels at 10 m/s without acceleration where is she 10 seconds later?Answer:x0 = A (some point in space) ; v0 = 10 m/s ; a = 0 ; Δt = 10 sSo, x = A + 10 * 10 + ½ * 0 * 2^ 2 = A + 100 meter.I don't know where A is but Jan is 100 meters further on her route.Jan travels at 10 m/s , decelerates at 10 m/s^s for 2 seconds, where is she now?Answer:x0 = A (some point in space) ; v0 = 10 m/s ; a = -10 m/s^2 ; Δt = 2 sSo, x = A + 10 * 2 + ½ * - 10 * 2 ^ 2 = A + 20 - 20 = AI don't know where A is but that is where Jan is now.

A perpendicular line drawn at the REFERENCE POINT to the SURFACE is CALLED a normal .

f incidence: The POINT at which the incident RAY falls on the mirror surface is called point of incidence. Reflected ray: The ray of LIGHT which is sent back by the mirror from the point of incidence is called reflected ray

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Most vines are flowering plants. These may be divided into WOODY vines or LIANAS, such as wisteria, KIWIFRUIT, and common ivy, and herbaceous (nonwoody) vines, such as morning glory. One odd group of vining plants is the fern GENUS Lygodium, CALLED climbing ferns.

In electronics and electrical engineering, a FUSE is an electrical safety device that operates to provide overcurrent protection of an electrical CIRCUIT. Its ESSENTIAL component is a METAL wire or strip that melts when too much current flows through it, thereby STOPPING or interrupting the current.HOPE IT'LL HELP

e slightest gust of wind CATCHES the ELABORATE crown of plumose hairs, raising and PROPELLING each seed-bearing achene into the air like a parachute. This successful weed THRIVES in a wide range of CLIMATES and has become naturalized throughout North America.

1.वायु 2. जल 3. मिट्टी (पृथ्वी) 4. अग्नि 5.आकाशExplanation:

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ure EXERTED by one feet = 240 paForce by feet on the land = 60NArea occupied by the feet = 0.25 m² _______________________As we know that , ☞ PRESSURE = Force ÷ AREA By the given INFORMATION ,♦ Force on each feet = 60/2 = 30N ♦ Area occupied by one feet = 0.25/2 = 0.125m²So , ⇒ Pressure = 30 ÷ 0.125 ⇒ Pressure = 30 ÷ 125/1000 ⇒ Pressure = 30 ÷ 25/200 ⇒ Pressure = 30 ÷ 5/40 ⇒ Pressure = 30 ÷ 1/8 ⇒ Pressure = 30 × 8 ⇒ Pressure = 240 N/m² or pa

MARK AS BRAINLIESTExplanation:Bestsellers in Mechanics#1. QUANTUM Mechanics: The Theoretical Minimum… ...#2. Basic and APPLIED Soil Mechanics. ...#3. Chaos. ...#4. STORM in a Teacup: The Physics of Everyday Life. ...#5. Theory Of Mechanicsms Machines. ...#6. Heat Thermodynamics and Statistical Physics. ...#7. Classical Mechanics: The Theoretical Minimum… ...#8.

the velocity of the electron in the FIRST Bohr orbit of the hydrogen atom is 2.18×106m/sec.Explanation:GIVEN parametersn=1h=6.626×10−26m=9.1×10−31kgThe velocity of an electron in the first Bohr orbit of H- atommvr = nh/2πv = nh/2πmr∴ v = (1 × 6.626×10−26)/ (2 × 3.14 × 91 × 0−31 × 0.529 × 0−10)v = 2.18×106ms−1.

the TIME PERIOD of A 40HZ WAVE is 0.025 s

the FORCE APPLIED when you make force TOWARDS any object .Pull is the force applied when you make force against any object.

MARK AS BRAINLIESTExplanation:(a)Length: Resistance is directly proportional to the length of the conductor. So as the length INCREASES the value of resistance increases. Cross-sectional AREA: Resistance is inversely proportional to the cross-sectional area of the conductor.(B) Length: Resistance is directly proportional to the length of the conductor. So as the length increases the value of resistance increases. Cross-sectional area: Resistance is inversely proportional to the cross-sectional area of the conductor. So as the cross-sectional area increases the value of resistance decreases.(c) Since the resistance of some conductor, such as a PIECE of wire, depends on collisions within the wire itself, the resistance depends on TEMPERATURE. With increasing temperature, the resistance of the wire increases as collisions within the wire increase and "slow" the FLOW of current.

Haber process, “the atmospheric NITROGEN (N2) is CONVERTED to ammonia (NH3) by reacting it with HYDROGEN (H2)”. Here a metal catalyst is used and high temperatures and pressures are MAINTAINED. Air, which supplies the nitrogen.

(B) Smalleris the CORRECT ANSWER

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answer is 16 as it will be multiplied by 2 and then divided by 4

plz MARK me as a brainlist,...hope it helpsExplanation:TIME period is defined as a vibrating PARTICLE to complete one vibration oscillation. It is denoted by T. It's S.I UNIT is second. While period is MEASURED in second per cycle, frequency is measured in seconds per cycles , consider our wave with a period of 2 second .

(d) A IMPLIES B and B implies A..

Shorter trees can be measured using a LONG pole extended vertically to the top of the tree. Larger trees can be climbed and a TAPE measurement made from the highest POINT of the CLIMB to the base of the tree. The DISTANCE to the top of the tree can be measured from that point, if needed, using a pole.Explanation:

Persistence of sound (after the SOURCE stops PRODUCING sound) due to the repeated reflection is called REVERBERATION. Reverberation can be reduced by absorbing the sound using some materials as it reaches the WALL and ceiling of the room and thus prevent the sound from getting REFLECTED.