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tion:The ANGULAR speed of satellite is 0.00116 rad/s.Explanation:GIVEN that,Time t = 90 minutes = 5400 secThe angular speed is the CHANGE of the angular DISPLACEMENT with the time. The angular speed is defined as:

,● VELOCITY of boat in still water = 8km/hr● Velocity of boat w.r.t river =8km/hr =V1● Velocity of river w.r.t. ground = V2 = 4km/hrTime taken by boat to go 1 km upstream is 1 hr and 1 km DOWNSTREAM is 1 hrNow,Velocity in upstream direction = (8-4)=4kmphvelocity in downstream direction =(8+4)=12kmphTo travrl 8km upstream time taken = 8/4 =2hrTo TRAVEL 8km downstream time taken = 8/12 = 2/3hr = 2/3*60= 40min→ Tota time taken = 2hr 40 minhappy to HELP !!:)

its DISTANCE is 8 METER

र्दादारतनतकिककिदाद१गहैूैैलाल ा ा काका ा ा ातदारीवू ३काजीगीपली ीस३जदाविलादजाकि

Position – TIME graphs display the motion of a particle by showing the changes of velocity with RESPECT totime. For Example, Above position –time graph represents an object at REST at position x1, in POSITIVE direction. THANK YOU.. PLZ MARK BRAINEST ANSWER...

In a SATELLITE of the TIME of revolution is T Then PE us is PROPORTIONAL to T only

CONTACT FORCEcontact force is any force that REQUIRES contact to occur.NON CONTACT FORCEnon-contact force is a force which ACTS on an OBJECT WITHOUT coming physically in contact with it.The most familiar example of a non-contact force is GRAVITY

A pendulum oscillates 40 times in 4 SECONDS. FIND its time PERIOD and frequency. Frequency of oscillations is the number of oscillations of a vibrating object per SECOND. Therefore frequency is = 40 vibrations /4 seconds= 10 Hertz.

A TIME period is the time taken for ONE complete cycle of VIBRATION to pass a given POINT .As the FREQUENCY of a wave increases the time period wave decreases. The unit of time period is second . Frequency and time period in a reciprocal relationship that can be expressed as 1by frequency

o the PICTURE...

rainbow is a METEOROLOGICAL phenomenon that is CAUSED by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light APPEARING in the sky. It takes the form of a multicoloured circular ARC. RAINBOWS caused by sunlight always appear in the section of sky directly opposite the sun.

the greatest DISTANCE that a WAVE, especially a SOUND or radio wave, moves up and down is called amplitude. THANK YOU .. PLZZ MARK AS BRAINEST ANSWER.....

tor given by (A⃗ × B⃗ ) is always PERPENDICULAR to both the vectors (given by the RIGHT hand THUMB rule); making 90° with eachNow; (A⃗ +B⃗ ) is the resultant between two vectors which lies in the same PLANE of both A⃗ and B⃗So (A⃗ × B⃗ ) is also perpendicular to (A⃗ + B⃗ )IE; the angle between them is 90° too

tion:If Displacement TIME graph is straight line then VELOCITY is constant !Velocity time graph is curved accerleration is keep CHANGING.Displacment time graph is ZIGZAG then velocity is changing FASTLY

The ANSWER Is 10secExplanation:HOPE It Will HELP You.

ctric material gets polarized when it placed in an electric field. The field produce due to the polarization of material minimize the EFFECT of external field. Hence, the electric field INSIDE a DIELECTRIC decreases when it is placed in an external electric fieldplease mark it as a BRAINLIST please PLZ

: but where are the QUESTIONS

According to the STANDARD definition of Potential DIFFERENCE,it is the work done in moving an uni positive charge within an electric FIELD from one point to another against the direction of field. Therefore the correct answer is False

I think that it is not used EXPLANATION:as these tube is meant to MAKE IMAGES.

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It is 180° - 60° = 120°. So, if TWO vectorsof equal magnitude PRODUCE a vector of the same magnitude, then the angle between the two vectors is 120°.Explanation:PLEASE mark me as brainliest my FRIEND

v=k√g/hExplanation:

1:2Explanation:v=√u^2+2asu=0v=√2asv=√2x10x30=√600E(KINETIC)=1/2 m v^21st body=1/2 X 2 x (√600)^22ND body=1/2 x 4 x (√600)^2ratio= 600/12001:2

v is not equal to kghExplanation:the GIVEN FORMULA of velocity is not CORRECT therefore it can't be PROVED with dimensional analysis. The correct formula is v squareroot of g/h

tion:1897 when he was STUDYING the PROPERTIES of cathode ray. ... J. J. Thomson won Nobel PRIZE in 1906 for DISCOVERING the elementary particle electron.

7i+7j EXPLANATION has been POSTED PLZ MARK BRANLIEST

yes I had the song producer DUE to progression seconds to reject are hearing ISC CLASS 9 chapter 10

when the global WARMING EFFECT on SEA WATER so the the water decrease

However instead of crests and TROUGHS, LONGITUDINAL WAVES have COMPRESSIONS and rarefactions. Compression. A compression is a region in a longitudinal wave where the particles are closest together. Rarefaction. A rarefaction is a region in a longitudinal wave where the particles are furthest apart.

if it is made in a c like shape we WOULD be able to see the backside of ours, that too not properly. Explanation:this is because we will not get the 90 degree angle needed for the proper PERISCOPE HOPE IT HELPS YOUMARK THE BRAINLIEST

mass of body (m) = 10 kg INITIAL VELOCITY (u) = 0 m/s final velocity (v) = 30 m/s time taken = 10 SEC FIRST CASE :we have to find acceleration :by formula v = u + at putting values30 = 0 + 10 a30 = 10 a a = 30/10 hence , acceleration = 3 as we know , FORCE = mass . aceleration force = 10 . 3 force = 30 N SECOND CASE :AS car is MOVING with final velocity , in second case that velocity will be taken as initial .hence , initial velocity (u)= 30 m / s final velocity (v) = 0 m/s (as brakes are applied)time taken (t) = 5 secmass will be constant or same as 10 kg again , by formula v = u + at 0 = 30 + 5a 5a = - 30 a = - 30 / 5acceleration = - 6 now , force f = m.a f = 10.-6f = - 60 N hence, accelerating force = 30N stopping force = - 60 N hope it helps u !!! mark as brainliest plzz appreciate my hardwork mate ❤

Explanation:It is due to anamolous expansion.The expansion of water takes place as it is COOLED from 4°C to 0°C. ... Due to this expansion a glass bottle completely FILLED with water and TIGHTLY closed at room temperature is likely to burst when kept in a FREEZER of a refrigerator.Thanks for the QUESTION. Hope it helps you.

Hydropower, or hydroenergy, is a form of renewable energy that uses the water stored in DAMS, as well as flowing in rivers to create electricity in hydropower plants. ... The rotating blades spin a generator that CONVERTS the MECHANICAL energy of the SPINNING TURBINE into electrical energy.