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Kanupriya Kaur ,.
Subject: Physics
, asked on 11/10/20
Why star fall?
Answer
7
Saumya
Subject: Physics
, asked on 9/10/20
A ship is at a distance of 560 m from a fort defending the harbour entrance of an island. A defence cannon, located at sea level, fires balls at initial speed u 82 m/s.
(a) At what angle 0 from the horizontal, must a ball be fired to hit the ship?
(b) How far should the ship be from the cannon, if it is to be beyond the maximum range of the cannon balls?
Answer
1
Kanupriya Kaur ,.
Subject: Physics
, asked on 6/10/20
Why we should conserve water?
Answer
20
Saumya
Subject: Physics
, asked on 4/10/20
An object is dropped from a PSLV(Polar
satellite Launching Vehicle) when it was going upwards at a height of 10 KM with a speed of 400 m/s. Find the time the ball will take to reach the ground
Answer
1
Saumya
Subject: Physics
, asked on 2/10/20
There are 10 cities in the Fatland. Two airlines control all of the flights
between the cities. Each pair of cities is connected by exactly one flight (in
both directions). Prove that one airline can provide two traveling cycles with
each cycle passing through an odd number of cities and with no common
cities shared by the two cycles.
Answer
1
Saumya
Subject: Physics
, asked on 27/9/20
What is physics? Explain with real life example??
Answer
1
Saumya
Subject: Physics
, asked on 26/9/20
According to the Newton third law every action has an equal and opposite reaction. So my doubt is when we lift a box we extract a force on it. So according to the Newton's third law the box have to be extract equal and opposite force on us then the force become balanced force So how we lift the box?
Answer
3
Saumya
Subject: Physics
, asked on 23/9/20
A boy walks to his school at a distance of 6 kilometre with constant speed of 25 KM walk back with a constant speed of 75 kilometre per hour. His average speed for round trip expressed in kilometre per hour??
Answer
1
Harsh Sharma
Subject: Physics
, asked on 23/9/20
Where is the end of the world? how its look like
Answer
1
Kanupriya Kaur ,.
Subject: Physics
, asked on 23/9/20
Explain mee the functioning of an inverter
Answer
3
Kanupriya Kaur ,.
Subject: Physics
, asked on 22/9/20
What is inside black hole ....I hv listened that time stops there ?...is it true??
Answer
3
Saumya
Subject: Physics
, asked on 21/9/20
If a body has achieved its highest speed and travelling in Straight line.Then why the acceleration becomes zero?
Answer
1
Saumya
Subject: Physics
, asked on 8/9/20
As loudness is directly proportional to density of medium so as water is more denser than air so why magnitude of sound is less in water as compared to magnitude of sound in air when we speak??
Answer
1
Saumya
Subject: Physics
, asked on 8/9/20
The elevation of a hill from a point P due east of it is ? and at a place Q due south of P, the elevation is ?. If the distance PQ be d, find the height of the hill.
Answer
2
Saumya
Subject: Physics
, asked on 8/9/20
In physics how we know the acceleration is constant or not?So that we apply Newton's laws.
Answer
1
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What are you looking for?

(a) At what angle 0 from the horizontal, must a ball be fired to hit the ship?

(b) How far should the ship be from the cannon, if it is to be beyond the maximum range of the cannon balls?

satellite Launching Vehicle) when it was going upwards at a height of 10 KM with a speed of 400 m/s. Find the time the ball will take to reach the ground

between the cities. Each pair of cities is connected by exactly one flight (in

both directions). Prove that one airline can provide two traveling cycles with

each cycle passing through an odd number of cities and with no common

cities shared by the two cycles.