Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Jaspreet Kaur Jassbrar 5 years, 3 months ago
- 0 answers
Posted by Nyra Sharma 5 years, 3 months ago
- 0 answers
Posted by Kul Bhaskar Tiwari 5 years, 3 months ago
- 0 answers
Posted by Mohammad Amaan Ansari 5 years, 3 months ago
- 2 answers
Gaurav Seth 5 years, 3 months ago
in motion of planets around the sun centripetal force is provided by the gravitational force of attraction.
A centripetal force is not a fundamental force, but a net force which causes an object to move in a circular path. It is directed towards the centre around which the body is moving. In the case of planets moving around the sun, the centripetal force is provided by the gravitational force of the sun. And in the case of satellites moving around the planets, the centripetal force is provided by the gravitational force of the planets.
Posted by Manish Nailwal 5 years, 3 months ago
- 1 answers
Meghna Thapar 5 years, 3 months ago
As you go to higher altitudes, there are less air molecules pushing down on you (lower pressure). When the pressure of a gas decreases, the temperature also decreases (the reverse is also true – when the gas pressure increases, the temperature increases). Therefore, the air temperature is lower at higher altitudes. Because as you go up from Surface level to higher altitudes the temperature decreases in atmosphere mainly in Troposphere. ... This is the reason why hill stations have low temperature.
Posted by Prakhar Singh 5 years, 3 months ago
- 2 answers
Meghna Thapar 5 years, 3 months ago
Physics tries to reach out the complete understanding of the universe and thus the various natural phenomena. It attempts to find the elementary particles that make the matter, forces that guide the phenomena and the various forms of energy. Physics has its scope in Classical physics and Modern physics.
<a data-ved="2ahUKEwiOiY3wndvqAhVQzzgGHQHSCj8Q9QEwAHoECAQQAw" href="https://www.google.com/search?q=Fully+derivation+of+scope+and+excitement+of+physics&rlz=1C1CHBD_enIN888IN888&sxsrf=ALeKk01DFfHmnsB882NMn1l4lYln1WR1Og:1595227592940&tbm=isch&source=iu&ictx=1&fir=rlCvPEghZvMuvM%252C-FHebcwRA27oQM%252C_&vet=1&usg=AI4_-kT0kAHMFBsvfQkw74rkDcK6WlrKhw&sa=X&ved=2ahUKEwiOiY3wndvqAhVQzzgGHQHSCj8Q9QEwAHoECAQQAw#imgrc=rlCvPEghZvMuvM"></a>
The scope of physics is quite vast and covers an enormous range of magnitude of physical quantities like mass, length, time, energy etc. The scope is divided into two sections, where on one side it studies about phenomena at a very small microscopic level involving and analyzing electrons, protons, and neutrons.
Meghna Thapar 5 years, 3 months ago
Physics tries to reach out the complete understanding of the universe and thus the various natural phenomena. It attempts to find the elementary particles that make the matter, forces that guide the phenomena and the various forms of energy. Physics has its scope in Classical physics and Modern physics. The scope of physics is quite vast and covers an enormous range of magnitude of physical quantities like mass, length, time, energy etc. The scope is divided into two sections, where on one side it studies about phenomena at a very small microscopic level involving and analyzing electrons, protons, and neutrons.
Posted by Harkomalpreet Kaur 5 years, 3 months ago
- 2 answers
Meghna Thapar 5 years, 3 months ago
The relation between velocity and time is a simple one during constantly accelerated, straight-line motion. ... Change in velocity is directly proportional to time when acceleration is constant. If an object already started with a certain velocity, then its new velocity would be the old velocity plus this change. Velocity is the measure of the amount of distance an object covers in a given amount of time. Here's a word equation that expresses the relationship between distance, velocity and time: Velocity equals distance travelled divided by the time it takes to get there.
Posted by Aaron Chacko 5 years, 3 months ago
- 1 answers
Manish Nailwal 5 years, 3 months ago
Posted by Madhu Jha 5 years, 3 months ago
- 2 answers
Kavyanjali Singh 5 years, 3 months ago
Khushi Tripathi 5 years, 3 months ago
Posted by Class 12 5 years, 3 months ago
- 5 answers
Aaron Chacko 5 years, 3 months ago
Posted by Vatsal Lad 5 years, 3 months ago
- 0 answers
Posted by Yash Sharma 5 years, 3 months ago
- 1 answers
Gaurav Seth 5 years, 3 months ago
given that,
Two vectors p and q are the sum of 18 and resultant is 12
here,
we have,
sum of magnitude of vector = 18
so,
p + q = 18 ... (1)
and sum of both vectors I. e. resultant = 12
so,
p^-> + q^-> = 12 = R
Now,
ACCORDING TO THE FIGURE,
R² = p² + q² + 2pq cosθ
given R = 12
so,
12² = p² + q² + 2pq cosθ .... (2)
now,
here, since the resultant is perpendicular
so,
value of α = 90°
so,
tanα =
so,
tan90.=
so,
p + qcosθ = 0
qcosθ = -p
now,
putting the value of qcosθ on (2)
12² = p² + q² + 2pqcosθ
144 = p² + q² + 2p(-p)
144 = p² + q² - 2p²
q² - p² = = 144
using algebraic identity
a² - b² = (a + b)(a - b)
so,
(q + p)(q - p) = 144
now
from eqn (1)
p + q = 18
putting the values,
18(q - p) = 144
q - p = 144/18
q - p = 8 .....(3)
now,
we have,
q + p = 18 ..(1)
q - p = 8 ...(3)
adding of both equations
q + p + q - p = 18 + 8
2q = 26
q = 26/2
q = 13
now,
putting the value of q in (1)
p + q = 18
p + 13 = 18
p = 18 - 13
p = 5
q = 13
now,
putting the value of p and q on (2)
p² + q² + 2pqcosθ = 144
(5)² + (13)³ + 2(5)(13)cosθ = 144
25 + 169 + 130cosθ = 144
194 + 130cosθ = 144
130cosθ = 144 - 194
130cosθ = -50
cosθ = -50/130
cosθ = -5/13
Posted by Shashi Kumar Suman 5 years, 3 months ago
- 1 answers
Yogita Ingle 5 years, 3 months ago
Dynamics, branch of physical science and subdivision of mechanics that is concerned with the motion of material objects in relation to the physical factors that affect them: force, mass, momentum, energy.
Posted by Nyra Sharma 5 years, 3 months ago
- 2 answers
Gaurav Seth 5 years, 3 months ago
▶ Given : x = (t - 2)
At t = 0 : x = xo = (0-2)^2 = 4m
At t = 1s : x = x1 = (1-2)^2 = 1m
At t = 2s : x = x2 = (2-2)^2 = 0m
At t = 3s : x = x3 = (3-2)^2 = 1m
At t = 4s : x = x4 = (4-2)^2 = 4m
Posted by Harkomal Pannu 5 years, 3 months ago
- 3 answers
Yogita Ingle 5 years, 3 months ago
The given quantity is 0.007 m2.
If the number is less than one, then all zeros on the right of the decimal point (but left to the first non-zero) are insignificant. This means that here, two zeros after the decimal are not significant. Hence, only 7 is a significant figure in this quantity.
Posted by Honey Yadav 5 years, 3 months ago
- 0 answers
Posted by Yash Sharma 5 years, 3 months ago
- 1 answers
Ishita Verma 5 years, 3 months ago
Posted by Rudra Nayak 5 years, 3 months ago
- 1 answers
Posted by M. Ramachandran 5 years, 3 months ago
- 1 answers
Posted by Isha Sharma 5 years, 3 months ago
- 1 answers
Posted by Saumya Singh 5 years, 3 months ago
- 2 answers
Posted by Gorgeous? Girl Is Back ?❤❤ 5 years, 3 months ago
- 0 answers
Posted by ꧁༺★ṖŕīᑎƇɛ {Ƭĥɛ Ŀ❤Ѵɛ Ɠʊŕʊ}★༺꧂ ?? 5 years, 3 months ago
- 5 answers
꧁༺★ṖŕīᑎƇɛ {Ƭĥɛ Ŀ❤Ѵɛ Ɠʊŕʊ}★༺꧂ ?? 5 years, 3 months ago
Posted by Sahil Singh 5 years, 3 months ago
- 5 answers
Posted by Gorgeous? Girl Is Back ?❤❤ 5 years, 3 months ago
- 5 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
