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Tulsi Mehta
Subject: Physics
, asked on 17/1/18
NO LINKS PLZ
If it is safe to jump from a height of 2m on surface of earth , what is its value on surface of moon ?
Answer
2
Pragati Gupta
Subject: Physics
, asked on 16/1/18
When a body of mass
m
is undergoing a circular motion of radius
r
around a body of mass
M
, the variation of the force of gravitation (
F
) with distance (
r
) is given as F = GMmrn
Then, the variation of the time period (
T
) with orbital distance (
R
) for a circular orbit will be
(A)
T
∝
R
n
(B)
T
∝
R
–n
(C)
T∝R
(
n
+ 1)/2
(D)
T∝R
(
n
– 1)/2
Answer
1
Amitesh Kumar
Subject: Physics
, asked on 12/1/18
Plz fast exam tomorrow
Answer
1
Rajib
Subject: Physics
, asked on 10/1/18
Q.4. A spherical symmetric gravitational system of particles has a mass density
ρ
=
ρ
0
f
o
r
r
≤
R
0
f
o
r
r
>
R
, where
ρ
0
is a constant. A test mass can undergo circular motion under the influence of the gravitational field of particles. Its speed v as a function of distance r from the centre of the system is represented by
(a)
(b)
(c)
(d)
Answer
1
Rajib
Subject: Physics
, asked on 10/1/18
A spherically symmetric gravitational system of particles has a mass density?p={p0for r≤R0for r>R" role="presentation" open sans"; font-weight: normal; display: inline; font-style: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">p={p00for r?Rfor r>Rp={p0for r?R0for r>Rwhere?p0" role="presentation" open sans"; font-weight: normal; display: inline; font-style: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">p0p0?is a constant. A test mass can undergo circular motion under the influence of the gravitational field of particles. Its speed V as a function of distance r (0
Answer
1
Tulsi Mehta
Subject: Physics
, asked on 9/1/18
Answer is -5.05 x 10^15 J. How minus sign ? NO LINKS PLZ
a satellite of mass 200kg revolves around a planet of mass 5?10^30 kg. in a circular orbit of radius 6.6?10^6 m. binding energy of satellite ia
Answer
1
Tulsi Mehta
Subject: Physics
, asked on 9/1/18
NO LINKS PLZ. ANSWER IN LINKS WAS NOT SATISFYING. (answer 2 root 2 u)
Let escape velocity of a body kept at surface of a planet is u. if it is projected at a speed of 200% more than escape speed , then its speed in interstellar space will be
Answer
1
Vanshika Sharma
Subject: Physics
, asked on 7/1/18
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-
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(
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(
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)
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sin
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5
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(
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)
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.
Answer
1
Tulsi Mehta
Subject: Physics
, asked on 6/1/18
Answer is R.
An object is projecyed vertically upwards with speed root gR where R is radiua of earth and g is acceleration due to gravity. Find max. height attained by it.
Answer
2
Nura Mohammad
Subject: Physics
, asked on 6/1/18
How to find the experimental and actual length of the pendulum
Answer
1
Nura Mohammad
Subject: Physics
, asked on 6/1/18
Can any1 help me out. See the graph says thatit it has been plotted for LT but looking on the table on the lhs it's clear that it is plotted using L and T square still it gives a parabola how come? Pintu sir i didnt understand your explaination ... U said that we r plotting l^2 against T and hence it becomes y^2=4ax but l is along x axis and T along y axis and also we r not plotting l^2 its just T dat is squared. Can someone plz give me a detailed explaination.
Answer
1
Nura Mohammad
Subject: Physics
, asked on 5/1/18
Can any1 help me out. See the graph says thatit it has been plotted for LT but looking on the table on the lhs it's clear that it is plotted using L and T square still it gives a parabola how come?
Answer
1
Tulsi Mehta
Subject: Physics
, asked on 5/1/18
NO LINKS PLZ. ANSWER IS 1:1
an object of mass M is divided into two parts , which are placed at distance d. if gravitational force of attraction is max between parts, then find the ratio of mass of both parts.
Answer
1
Tulsi Mehta
Subject: Physics
, asked on 5/1/18
12. Four particles of equal mass are moving around a circle of radius r due to their mutual gravitational attraction. Find angular velocity. Answer in the picture.
w
=
G
M
r
3
4
+
2
4
2
Answer
1
Tulsi Mehta
Subject: Physics
, asked on 5/1/18
Plz explain how j sin 30 is written here
Answer
1
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What are you looking for?
If it is safe to jump from a height of 2m on surface of earth , what is its value on surface of moon ?
Then, the variation of the time period (T) with orbital distance (R) for a circular orbit will be
(A) T∝Rn (B) T∝R–n (C) T∝R(n + 1)/2 (D) T∝R(n – 1)/2
(a)
(b)
(c)
(d)
a satellite of mass 200kg revolves around a planet of mass 5?10^30 kg. in a circular orbit of radius 6.6?10^6 m. binding energy of satellite ia
Let escape velocity of a body kept at surface of a planet is u. if it is projected at a speed of 200% more than escape speed , then its speed in interstellar space will be
An object is projecyed vertically upwards with speed root gR where R is radiua of earth and g is acceleration due to gravity. Find max. height attained by it.
an object of mass M is divided into two parts , which are placed at distance d. if gravitational force of attraction is max between parts, then find the ratio of mass of both parts.