The velocity of rocket with respect to ground is v1 and velocity of gases ejecting from rocket with respect to ground is v2 Then velocity of gases

Monjur Alahi

The velocity of rocket with respect to ground is v1 and velocity of gases ejecting from rocket with respect to ground is v2 Then velocity of gases with respect to rocket is given by

(A) v2

(B) v1 + v2

(C) v1 × v2

(D) v1


0 like 0 dislike
4 views
Share with your friends

2 Answers

Salim Ahmed Kawsar

Call

Correct option is: (B) \(v_2 - v_1\)

Then velocity of gases with respect is

\(v = v_2 - v_1\)

0 like 0 dislike
4 views
Talk Doctor Online in Bissoy App
Salim Ahmed Kawsar

Call

Correct option is: (B) v1 + v2

0 like 0 dislike
4 views
Talk Doctor Online in Bissoy App
A hydrogen atom in ground state is moving with a kinetic energy of 30 eV. It collides with a deuterium atom in ground state at rest. The hydrogen atom

Correct Answer - `20 eV, 13.2 eV`

2 Answers 1 views
Do all pure gases and mixtures of gases obey the gas laws?

Yes, the gas laws are also applicable to the mixtures of gases. The measurable properties of a mixture of the gases such as pressure, temperature, volume, and amount of gaseous...

2 Answers 1 views
A rocket of mass 20000 kg is ejecting the gases at the rate of 50 kg/sec with speed of 20 m/sec in gravity free space. Find the acceleration of rocket

Correct Answer - `a=(10)/(19)m//s^(2)`

2 Answers 1 views
20. A coconut of mass \( 2 Kg \) is falling from a coconut free of height \( 10 m \). Find the potential energy, kinetic energy and total energy at the following points. \( \left( g =10 m / s ^{2}\right) \) a) Before falling from the coconut tree. b) Just before hilting the ground. c) At a height \( 4 m \) from the ground. d) Which law is evident from this example?

(a) Given m = 2 kg h = 10 m Potential energy at before falling from the coconut tree. u = mgh u = 2 x 10 x 10 u = 200 joule Kinetic energy will...

2 Answers 1 views
The velocity of rocket with respect to ground is v1 and velocity of gases ejecting from rocket with respect to ground is v2 Then velocity of gases 2 Answers 2 views
Why, according to kinetic theory of gases, gases have neither definite volume nor shape?

As per kinetic theory of gases, for an ideal gas, there are no forces between the molecules of a gas. Hence, gases neither have a definite volume nor shape.

2 Answers 2 views
The refractive index of glass with respect to air is 3/2 and the refractive index of water with respect to air is 3/2.

Correct option is  D) 8/9

2 Answers 1 views
Rainbow is seen only for a definite angle range with respect to the ground. Justify.

i. For clear visibility of rainbow, a beam must have enough intensity. ii. The curve for angle of deviation and angle of incidence is almost parallel to X-axis near minimum deviation...

2 Answers 3 views
The velocity of a small object that has separated from a rocket moving in free space with velocity of 11 km/s is 

Correct option is B) 11 km/s

2 Answers 1 views
Equimolar mixture of two gases \( A_{2} \) and \( B_{2} \) is taken in a rigid vessel at temperature \( 300 K \). The gases reacts according to given equations : \[ \begin{array}{ll} A_{2}(g) \rightleftharpoons 2 A(g) & K_{P_{1}}=? \\ B_{2}(g) \rightleftharpoons & K_{P_{2}}=? \\ A_{2}(g)+B_{2}(g) & \rightleftharpoons 2 A B(g) & K_{P_{3}}=2 \end{array} \] If the initial pressure in the container was 2 atm and final pressure developed at equilibrium is \( 2.75 atm \). in which equilibrium partial pressure of gas \( A B \) was \( 0.5 atm \), calculate the ratio of \( \frac{ K _{ p _{2}}}{ K _{ p _{1}}} \). [Given : Degree of dissociation of \( B_{2} \) is greateı than \( A _{2} \) ].

this is the solution!!!! 

2 Answers 1 views
X