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A projectile of mass m is fired from the surface of the earth at an angle α=60∘ from the vertical. The initial speed υ0 is equal to root G Me / Re . How high does the projectile rise ? Neglect air resistance and the earth’s rotation.
06
Oct
A projectile of mass m is fired from the surface of the earth at an angle α=60∘ from the vertical. The initial speed υ0 is equal to root G Me / Re . How high does the projectile rise ? Neglect air resistance and the earth’s rotation. A particle of mass m is subjected to [...]
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A particle of mass m is subjected to an attractive central force of magnitude k/r 2 ,
at a distance a from the centre of force ,
if the distance of other extreme position is b. Find a/b ,
its speed is (k/2ma) ,
k being a constant. If at the instant when the particle is at an extreme position in its closed orbit ,
Gravitational acceleration on the surface of plane fo root 6 /11 g. where g is the gravitational acceleration on the surface of the earth. The average mass density of the planet is 23 times that of the earth. If the escape speed on the surface of the earth is taken to be 11 km/s the escape speed on the surface of the planet in km/swill be
06
Oct
Gravitational acceleration on the surface of plane fo root 6 /11 g. where g is the gravitational acceleration on the surface of the earth. The average mass density of the planet is 23 times that of the earth. If the escape speed on the surface of the earth is taken to be 11 km/s the [...]
Tags:
A particle of mass m is subjected to an attractive central force of magnitude k/r 2 ,
at a distance a from the centre of force ,
if the distance of other extreme position is b. Find a/b ,
its speed is (k/2ma) ,
k being a constant. If at the instant when the particle is at an extreme position in its closed orbit ,
A particle is fixed vertically upwards with a speed of 15 km/s . The speed of the particle ( in km/s ), when it goes out of the earth’s gravitational pull is 5 alpha. Find the value of alpha.
06
Oct
A particle is fixed vertically upwards with a speed of 15 km/s . The speed of the particle ( in km/s ), when it goes out of the earth’s gravitational pull is 5 alpha. Find the value of alpha. A particle is fixed vertically upwards with a speed of 15 km/s . The speed of [...]
A particle of mass m is thrown in a parabolic path towards earth having mass M and radius R. It comes to a greatest approach distance R/2 from surface of earth. Magnitude of an elliptical path having eccentricity 1/2 with the greatest approach point either aphelion or perihelion are
06
Oct
A particle of mass m is thrown in a parabolic path towards earth having mass M and radius R. It comes to a greatest approach distance R/2 from surface of earth. Magnitude of an elliptical path having eccentricity 1/2 with the greatest approach point either aphelion or perihelion are A particle of mass m is [...]
Tags:
A particle of mass m is subjected to an attractive central force of magnitude k/r 2 ,
at a distance a from the centre of force ,
if the distance of other extreme position is b. Find a/b ,
its speed is (k/2ma) ,
k being a constant. If at the instant when the particle is at an extreme position in its closed orbit ,
If trhe radius of the earth were to shrink by 2% its mass remaining the same, by how much percentage would the acceleration due to gravity on the earth’s surface would increase?
06
Oct
If trhe radius of the earth were to shrink by 2% its mass remaining the same, by how much percentage would the acceleration due to gravity on the earth’s surface would increase? by how much percentage would the acceleration due to gravity on the earth's surface would increase? If trhe radius of the earth were [...]
The sun’s mass is about 3.2 x 10^5 times the earth’s mass. The sun is about 400 times as far from the earth as the earth is from the moon. Assume that the sun – moon distance is constant and equal to sun – earth distance. The ratio of the magni9tudes of the gravitational pull of the sun on the moon ( Fms ) and of the earth on the moon ( Fem ) will be Fms/ Fme = ‘*’. Find ‘*’.
06
Oct
The sun’s mass is about 3.2 x 10^5 times the earth’s mass. The sun is about 400 times as far from the earth as the earth is from the moon. Assume that the sun – moon distance is constant and equal to sun – earth distance. The ratio of the magni9tudes of the gravitational pull [...]
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A particle of mass m is subjected to an attractive central force of magnitude k/r 2 ,
at a distance a from the centre of force ,
if the distance of other extreme position is b. Find a/b ,
its speed is (k/2ma) ,
k being a constant. If at the instant when the particle is at an extreme position in its closed orbit ,
A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O at a point Q, so that OQ=12 cm. Length of PQ is :
05
Oct
A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O at a point Q, so that OQ=12 cm. Length of PQ is : A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O [...]
2. Fill in the blanks : (1) A tangent to a circle intersects it in_________ point (s). (2) A line intersecting a circle in two points is called a _____. (3) A circle can have ________ parallel tangents at the most. (4) The common point of a tangent to a circle and the circle ______
05
Oct
2. Fill in the blanks : (1) A tangent to a circle intersects it in_________ point (s). (2) A line intersecting a circle in two points is called a _____. (3) A circle can have ________ parallel tangents at the most. (4) The common point of a tangent to a circle and the circle ______ [...]
How many tangents can a circle have ?
05
Oct
How many tangents can a circle have ? How many tangents can a circle have ? October 5, 2020 Category: Chapter 10 - Circles , Maths , NCERT Class 10 ,
A ray of light undergoes a deviation of 30 when incident on an equilateral prism of refractive index root 2. What is the angle subtended by the ray inside the prism with the base of the prism?
05
Oct
A ray of light undergoes a deviation of 30 when incident on an equilateral prism of refractive index root 2. What is the angle subtended by the ray inside the prism with the base of the prism? A ray of light undergoes a deviation of 30 when incident on an equilateral prism of refractive index [...]