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A PERISCOPE is a useful example of the law of reflection at work. ... In a periscope, LIGHT from an object strikes the top MIRROR at 45° and BOUNCES off at the same ANGLE. This sends light directly down the tube and onto the lower mirror. This mirror, also at a 45° angle, reflects light directly to your eye.

liquid exerts equal pressure at the same depth. ... All the liquids exert pressure on the BASE or bottom and WALLS of their container. All the liquid have WEIGHT. When we pour liquid into a vessel, then the weight of liquid PUSHES down on the base of the vessel PRODUCING a pressure.

ation is a vector QUANTITY that is defined as the RATE at which an object changes its velocity. An object is ACCELERATING if it is CHANGING its velocity.

Brazil is covered by Highlands, it is ONE of the extensive geographical REGIONS and it is also covering most of the eastern, CENTRAL and southern portions of Brazil. The approximately half of the COUNTRY's land area covered by HighlandsExplanation:(◕︿◕✿ )

Ohm's Law is a formula used to calculate the relationship between VOLTAGE, current and RESISTANCE in an electrical circuit. To students of electronics, Ohm's Law (E = IR) is as FUNDAMENTALLY IMPORTANT as Einstein's Relativity equation (E = mc²) is to physicists.Hi Will you LIKE to be my friendItz Harsh

i HOPE it will HELP uExplanation:have a NICE day it not TAKING whole page

The WATER rises, cools, and condenses. A cloud is formed! CLOUDS form when warm WET air rises and condenses in COLD air. ... The second reason that clouds can float in the air is that there is a constant flow of warm air rising to meet the cloud: the warm air pushes up on the cloud and keeps it afloat.please mark me as brain liest

make a CIRCUIT DIAGRAM with the HELP of ameater, VOLTEMETER , resistst, battery,bulbExplanation:make a circuit diagram with the help of ameater, voltemeter , resistst, battery,BULB

Conservation of momentum, GENERAL LAW of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a SYSTEM remains constant.

ucuxtstcibpbicysyckvkbuztxkblExplanation:The Interim Government of India, also known as the Provisional Government of India, formed on 2 SEPTEMBER 1946 from the newly elected CONSTITUENT Assembly of India, had the task of assisting the transition of British India to independence.

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Translatory motion MatterTranslatory motion or translational motion OCCURS when all points in a BODY MOVE the same distance in the same amount of time. The translatory motion does not ALWAYS require that the object move in a straight line. We can use the term translational motion when the object is moving in 2- or 3-dimensional bodies.

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tion: (a) 9 cm3 ---2. Volume 3.(B) m² ---1. Area(C)--(c) MS1 ---4. Speed

inal velocity = 7.5 m/s.Distance travelled by the bicycle = 31.25 METERS. GivenInitial velocity of bicycle = 5 m/s.Acceleration = 0.5 m/s².Time taken = 5 seconds.To FindFinal velocity of the bicycle. Distance COVERED by the bicycle. Step By Step ExplanationFirst we need to find the final velocity of the bicycle. So let's do it !!USING FIRST equation of motion. v = u + at Substituting the values :Therefore, final velocity of the bicycle = 7.5 m/s.Now, we need to find the distance travelled by the CAR. So let's do it !!Using third equation of motion. v² - u² = 2asSubstituting the values :Therefore, distance travelled by the bicycle = 31.25 meters. __________________________

this PICTURE AREA can't be calculated as no VALUE has been GIVEN but we can count the number of boxes to calculate areaExplanation:hope it HELPS

Evaporation is a type of VAPORIZATION that occurs on the surface of a liquid as it changes into the GAS PHASE. The surrounding gas must not be SATURATED with the evaporating substance. When the molecules of the liquid collide, they TRANSFER energy to each other based on how they collide with each other.

while pulling UPWARD gravity friction and human FORCE is acting which is contact as well as non contactwhile downwards gravity friction AIR resistance is acting which is ALSO both contact and non contact force

- Fertilization6 - Internal7 - Buds8 - OvaryDown2 - Testes3 - Zygote4 - Oviparous5 - Binarymake me BRILLIANT

down is your answerexplanition Trace the Banyan LEAF on the graph PAPER and count the number of FULL squares as 1 eg: there are 26 full squares the area of it is 26sq.cm. Half squares should be taken as 1/2 eg: there are 20 half squares the area of it is 10sq.cm.thank you mark BRAINLIST

Solution:DISTANCE = 160 kmTime taken = 4hSpeed = ?speed= distance COVERED/ time taken= 160km/ 4H= 40 km\ h^{-1}km h −1Explanation:here's your answer

Marie Curie was one of the most accomplished scientists in history. Together with her husband, PIERRE Curie, she discovered radlum, an element widely used for treating cancer, and studied uranium and other radioactive substances, Pierre and Marie's COLLABORATION LATER helped them to unlock the secrets of the ATOM. Marie was born in Warsaw, Poland, where her father was a professor of physics. Determined to receive a higher education, she left Poland, and in 1891 ENTERED the Sorbonne, a French university, where she earned her master's degree and doctorate in physics. She married to Pierre in 1895 and spent many productive years working together.

ksnjsjdjsjsjjsjsjsbhsjdjsjdhsExplanation:keiejejrurjfnsjdndjjsjshdhrhdh

No, a CLINICAL thermometer cannot be used to measure the TEMPERATURE ofboiling WATER because it has a small range and might BREAK due to extreme HEAT.

a step by step solution to your query:-Initial velocity u= 72 km/hr, final velocity v= 18 km/hr (convert km/hr into m/s by multiplying it by begin mathsize 12px STYLE 5 over 18 end style), this change in velocity OCCURS within the distance of s = 40 m.-As the velocity of the motion is decreasing, the acceleration is called retardation, which is numerically equal to the calculated acceleration 'a' but has a negative sign due to acceleration in opposite direction.-We get the value of retardation (in m/s2) on substituting the above VALUES in the formula,v2=u2+2as and write retardation in the negative terms of 'a'.-Further, on substituting the value of above calculated 'a', and the given values of 'u' and 'v' in the formula,v=u+at, (the value of 'a' will be in negative terms as it is retardation)we obtain the time 't' in SECONDS for which the brakes were applied by the given car.Hope this was helpful! Mark me brainiest

According to the question let's first write down the given data,Car at rest means the initial velocity of the car is given as, u= 0 km/hrThen the final velocity, v = 72 km/hr after converting to m/s we have,v = 72 × (5/18) = 20 m/s and the time taken,t = 1/4 (60 sec) i.e. t = 15 secNow for us to calculate the distance covered by the car from above data, we should make use of one of the equations of motion,To calculate the distance with constant ACCELERATION and varying velocity we have the formula,s = ut + 1/2 (at^2)Now we have all the values EXCEPT a,To find a i.e. acceleration we have formula,a = change in velocity/ timei.e. a = (v-u)/t, a = (20–0)/15 = 1.33 m/sNow, substituting the values in above equationWe get, s = (0) × (15) + 1/2 (1.33) × (15)^2S = 150mSo, the distance covered by the car is 150m.

there were increasing regional variations under the British rule. There was a decline in the workforce on agriculture in the parts of the then Madras Presidency, West Bengal and MAHARASHTRA coupled with an increase in the workforce on manufacturing and services SECTOR.

m, product of the mass of a PARTICLE and its velocity. Momentum is a VECTOR quantity; i.e., it has both magnitude and direction. Isaac Newton's SECOND law of motion STATES that the time rate of change of momentum is equal to the FORCE acting on the particle

, property of a BODY by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the MAGNITUDE or DIRECTION of its VELOCITY. Inertia is a PASSIVE property and does not enable a body to do anything except oppose such active agents as forces and torques.

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14°F= -10°C100°C=212°F12K= -261.15°CExplanation:(14°F − 32) × 5/9 = -10°C(100°C × 9/5) + 32 = 212°F12K − 273.15 = -261.1°C

(-3)³ × (-3)⁴ = [(-3) × (-3) × (-3)] × [(-3) × (-3) × (-3) × (-3)] = (-3)3+4 = (-3)⁷4. m⁵ × m³ = (m × m × m × m × m) × (m × m × m) = m5+3 = m⁸From the above examples, we can generalize that during MULTIPLICATION when the bases are same then the exponents are ADDED.

rOpen in answr app(a) Invelocity of the truck, u = 0Acceleration, a = 2 m/s2Time, t = 10 sAs per the first equation of MOTION, final VELOCITY is given as:v = u + at= 0 + 2 x 10 = 20 m/sThe final velocity of the truck and HENCE, of the STONE is 20 m/s.At t = 11 s, the horizontal component (vx) of velocity, in the absence of AIR resistance, remains unchanged,so the option is1)1/2

s first law STATES that, if a body is at REST or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is ACTED upon by a force. This POSTULATE is KNOWN as the law of inertia.

Replenishment of Nutrients In The Soil•How Nutrients are replenished in the Soil. 1.1 (1) Nutrients are replenished in the Soil by adding Fertilisers and MANURES. 1.2 (2) NITROGEN Can be Replenished in the Soil by Growing Leguminous Crops.•Cells. 2.1 Animal cell. 2.2 PLANT cell.•Functions of all the parts of a cell.

tion:Distance formula, Algebraic expression that gives the distances between pairs of POINTS in terms of their coordinates (see coordinate system). ... The distance between the points (a,B) and (c,d) is given by SQUARE ROOT of√(a − c)2 + (b − d)2.

The hot AIR rises and creates an area of low PRESSURE. SEA water does not GET heated so rapidly, so air above the sea is RELATIVELY cool. A high pressure area forms above sea water as compared to air over land. Therefore, cooler air over the sea, flows towards the land, where low pressure area exists.