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No. Explanation: As MERCURY is a pure liquid metal it conducts the electricity, but it is not an ELECTROLYTE, because an electrolyte is defined as a compound that ionizes when DISSOLVED in suitable IONIZING solvents such as water, Where Mercury is a metal ELEMENT not a compound.

To TAKE the boat away from the bank of a river, the boatman PUSHES the bank with an oar - as he pushes the bank with his oar he creates an ACTION FORCE ,in return to this action force the bank of the river gives a reaction force(according to Newton's THIRD law)thus the equal but opposite force causes the boat to move away from the bank

s unbalanced force : unbalanced force is able to give motion to the body. because it acceleration the body in a specific direction by which body starts to move WITHOUT changing their SHAPE. (b) Y is balanced force : ACCORDING to Newton's 3rd law, “action and reaction are of equal in MAGNITUDE and directed in opposite directions. ” if two equal FORCES applied on a body are directed in opposites then body can't change its motion. but this force is able to change their shape.

The two FORCES are Friction by the ROAD and Resistance from the air. Out of these two frictional FORCE has a higher contrubution towards stopping the moving VEHICLE

A) silver B) CARBON C) rubber D) SILICONE

-5kg.m/sExplanation:mass=500/1000=0.5 velocity=-10m/s because it is THROWN UPWARDS MOMENTUM =mass×velocity momentum=0.5×-10=5kg .m/s

(a) The resistance will be lower in the case of a metal because it has free electrons, unlike non-metals who show more resistance and are BAD conductors. Even metals LIKE lead show higher resistance due to lower presence of free electrons but metals like silver have higher presesnce of free electrons so they show lesser resistance.(b) The resistance in a CONDUCTOR of CROSS sectional area (A) and length (L) can be FOUND by the formula where rho is the resistivity, l is the length and a, is the area. Further the calculations can be made by the app "photomath". Note: first change all units to the same SI unit.

Explanation:H = u²(sinФ)²/2g    = (50)²(3/5)²/20    = 2500*9/500 = 45After REACHING maximum height, the object should have a free fall .V²=u²+2*G*H'    = 0 + 20*65 =1300So, v =√1300 = 10√13

7.3852573754 is LOG 24284086

1/2(F1^2+F2^2)EXPLANATION: F1+F2=P AND F1-F2=Q (AS F2 IS REVERSED , So -F2)Now, P^2+q^2=1/2[(P+Q)^2+(P-Q)^2]=1/2[ 4F1^2+4F2^2]= 1/2(F1^2+F2^2)

(A) - 30 m/sExplanation:LETS assume the initial velocity to be u.s = 25, u =u, a = -gv² - u² = 2as v² = u² - 50G -------- (1)After 25 m is crossed, the TIME of flight to return BACK to the same point is T = 2v/g 4 = 2v/10 ,  v = 20Substitute v in equation 120² = u² - 50(10)  900 = u² u = 30

•♫•.ENERGY of the INCIDENT Photon is given by ,E = hc/ lemda = 1242eV / 300nm = 4.14 eV in HYDROGEN atom the electron can be excited to the first excited STATE if it absorbs energy equal to - 13.6eV/2^2-(-13.6/1^2) eV - 13.6/4+13.6= 10.2eV тℏᾰℵкṧ

n: - ANSWER:EXPLANATION:Given:To Find: The ratio of the time taken by them to  reach the ground.​Let time taken by the two BODIES be respectively.Let assume that both bodies were initially at rest.Using 2nd equation of motion:For a FREE falling body, a = gDividing equation (1) by equation (2)

tion:HEY bro This will help USEE 11 OK

Resistivity or specific RESISTANCE of a body is a characteristic by which one can judge the electrical property of a SUBSTANCE. ... Resistivity quantifies how strongly a MATERIAL opposes the flow of electrons through it. If a material has low resistivity, it means it OFFERS less resistance to the ELECTRIC current. Follow me guysmark this as a brainlist answer

YOUR ANSWER :-Coils of electric irons and electric TOASTERS are made of an ALLOY rather than a pure METAL because alloys have more resistance and high melting point as compared to pure metal as they are mixture of different METALS due to which they didn't melt even at very high temperature.Please mark brainliest.THANKS.

the karate player moves his hand very ,very FAST .In doing so ,the large MOMENTUM of the fast moving hand is reflected to ZERO in a very,very short time. This exerts a very large force on the PILE of tiles which is sufficient to break them apartExplanation:

Out of balanced force and imbalanced force , shape of an object is changed by applying balanced force as it ACTS on all the surface of the object equally. One EXAMPLE to illustrate the above statement is: SQUEEZING of a BALLOON. When a balloon is being squeezed with TWO hands from two sides, the shape of the balloon changes. Because of the resultant force being equal, the balloon doesn't move but its shape is changed.

e/2Explanation:kinetic energy range is always MAXIMUM so U can TAKE positive SIGN so the maximum height will bee/2

re can be PENETRATED from the VELOCITY of 100 m/s, then 0.5 m can be penetrated from the velocity of 100*0.5=50therefore velocity is 50m/s.I HOPE it HELPS you.

is UNAFFECTED by the MAGNET

u=0 v=72km/ph or 72*5/18 =20m/sd=40 metres So by third EQUATION of MOTION we get 2as=v^2+u^22*a*40=(20)^2 + 0^280a=400+080a=400a=400/80a=5m/s^2Explanation:

I don't UNDERSTOOD what U have ASKED

tion:The motion from O to A represents a UNIFORM acceleration. The CONSTANT rate of acceleration is derived from the constant increase in speed at a particular time.The motion from A to B has a Constant speed. This is because speed remains constant for the time.Uniform retardation is represented by BC. This is because there’s a steady rate of decrease in speed PER unit time. The acceleration of a car is .The acceleration of the car from point A to B is Zero. This is because there’s no change in velocity at this moment.The retardation of the car from point B to C is

125VExplanation:Since by the HELP of Ohm's law we can CONCLUDE that V=IRso 10V and 0.02 A gives 500 ohm resistance250 mA and 500ohm will give 125 VV=250/1000*500=1/4*500=125V

tudents,◆ Answers -(a) The ratio of potential DIFFERENCE and current known as RESISTANCE.(b) Question is incomplete.(c) Ohm's law is illustrated by V-I graph.(d) Relationship between VOLTAGE, current and resistance is GIVEN by formula V = RI.(e) Resistance of electronic IRON is given by R = V/I = 240/5 = 48 ohmThanks dear...

i1v1=i2v2 APPLY itExplanation:UR ANSWER will COME 6by5

graph dal do TAB n ANSWER dunga

1. Graph c2. Graph aExplanation:(i) Graph (c): The speedof the ball GOES on decreasing uniformly as it moves upward ZERO at the highest point, and then increases uniformly as it moves DOWNWARD.(ii) Grap(a): The SPEED of the trolley decreases uniformly, then it moves at a CONSTANT speed, and then the speed increases uniformly.

r,Corresponding diagram is missing from the question. I'll ADD that in image.◆ ANSWERS -Velocity at C, v = 40 km/hBetween A and B, a = 6.67 km/h²Between B and C, a = 0 km/h²◆ Explanation -(i) Velocity of the BODY at point C -From the graph, velocity of the body at point C is 40 km/h.v = 40 km/h(ii) Acceleration acting on the body between A and B -a = (v-u)/TA = (40-20)/3a = 6.67 km/h²(iii) Acceleration acting on the body between B and C -a = (v-u)/ta = (40-40)/3a = 0 km/h²Thanks dear...

(i) Speed from A to B = 1 cm/s(ii) Speed from B to C = 0(iii) Speed from C to D = 2 cm/sExplanation:The graph is attachedFrom A to B the graph is a straight LINE, from B to C it is a horizontal line parallel to the time AXIS and from C to D it is again a straight lineDistance COVERED from A to B = 3-0 = 3 cmTime taken from A to B = 5-2 = 3 secondsTherefore speed from A to B = Distance/ Time = 3/3 = 1 cm/sDistance covered from B to C = 3-3 = 0 cmTime taken from B to C = 7-5 = 2 secondsTherefore speed from B to C = Distance/ Time = 0/2 = 0Distance covered from C to D = 7-3 = 4 cmTime taken from C to D = 9-7 = 2 secondsTherefore speed from C to D = Distance/ Time = 4/2 = 2 cm/s

.p.d. = 230 V, I = 8 A(a) from the formula....I = Q/tQ = I × tQ=  8 × 1 = 8Ccharge FLOWS around the circuit each second is 8C(b) p.d. = 230 VI = 8 Awe KNOW.. ENERGY transferred = work doneso from the formula...p.d. = work done/CHARGE movedwork done = p.d. × charge movedwork done = 230 × 8 = 1840Jso the energy transferred is 1840J

lamps are in series combination, in series combination, EVERY device must FUNCTION for the circuit to be complete. also in series combination, current through each device is same. (B) here, student connected an ammeter in parallel combination with the lamps but we know ammeter is always connected in series combination.(c) SEE figure,

a. rmelectric current is defined as the rate of flow of electric charge...s.i units....AMPERE (A)b.One coulomb is nearly equal to 6 x 1018 electrons. SI unit of electric current is ampere (A). Ampere is the flow of electric charges through a surface at the rate of one coulomb per second. This means if 1 coulomb of electric charge flows through a cross section for 1 second, it would be equal to 1 ampere.C.ampere meter...or ammeterd.The particles that carry charge through wires in a circuit are mobile electrons. The electric field DIRECTION within a circuit is by definition the direction that positive test charges are pushed. THUS, these negatively CHARGED electrons move in the direction opposite the electric field.e.Q=10 c,t=0.01 sI=Q/T=10/0.01=1000Ap.d=W/Q=W=p.d×Q =10x10^6x10 =100MJ