Doors of a dam are 20m below the surface of water in the dam. If one door is opened what will be the speed of the water that flows out of the door ?
The given can be listed as, h= 20m g = 9.8m/s² To find, v = ? Solution -��…
Showing posts with the label Class 10 Science I GravitationShow All
The mass of the earth is 6 x 10²⁴ kg. The distance between the earth and the Sun is 1.5x 10¹¹ m. If the gravitational force between the two is 3.5 x 10²² N, what is the mass of the Sun?
the given can be listed as mass of earth , m = 6 x 10²⁴ kg. distance between sun and…
The masses of the earth and moon are 6 x 10²⁴ kg and 7.4x10²² kg, respectively. The distance between them is 3.84 x 10⁵ km. Calculate the gravitational force of attraction between the two?
the data can be listed as mass of earth , M = 6 x 10²⁴ kg mass of moon , m = 7.4 x 10²…
A ball falls off a table and reaches the ground in 1s. Assuming g = 10 m/s², calculate its speed on reaching the ground and the height of the table.
we can list the given data as, initial velocity , u = 0m/s time t = 1s g = 10m/s² To f…
An object thrown vertically upwards reaches a height of 500 m. What was its initial velocity? How long will the object take to come back to the earth? Assume g = 10 m/s²
We can list the data as, height covered or distance covered, s = 500m g = 10m/s² To fi…
The mass and weight of an object on earth are 5 kg and 49 N respectively. What will be their values on the moon? Assume that the acceleration due to gravity on the moon is 1/6th of that on the earth.
As per the given data, we can list the data as, mass on earth , m = 5kg Weight on ear…
The radius of planet A is half the radius of planet B. If the mass of A is MA, what must be the mass of B so that the value of g on B is half that of its value on A?
As per the question we can list the data as To find - Solution - Using the formula …
An object takes 5 s to reach the ground from a height of 5 m on a planet. What is the value of g on the planet?
The given in the question can be listed as time t = 5s height h = 5m initial velocity…
Calculate the viscous force acting on a rain drop of diameter 1 mm, falling with a uniform velocity 2 m/s through air. The coefficient of viscosity of air is 1.8 × 10^-5 Ns/m².
As per the question we can list some data as, diameter d = 1mm velocity v…
A light bulb is rated 100W for 220 V AC supply of 50 Hz. Calculate (a) resistance of the bulb. (b) the rms current through the bulb.
the given can be listed as Power P = 100W To Find , Resistance R = ? …