Question
An astronaut inside a small space ship orbiting around the earth cannot detect gravity. If the space station orbiting around the earth has a large size, can he hope to detect gravity?

Answer

In case the size of the space-station becomes large, the forces of gravity will become appreciable, and the astronaut can hope to detect it.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A girl is swinging in the sitting position. How will the period of the swing be changed if she stands up?
A disc rotates about its axis with a constant angular acceleration of $4\text{rad/s}^2$. Find the radial and tangential accelerations of a particle at a distance of 1cm from the axis at the end of the first second after the disc starts rotating.
A liquid drop breaks into 27 small drops. If surface tension of the liquid is S, then find the energy released.
The frequency of a tunning fork is given by $n=\frac{1}{2 l} \sqrt{\frac{T}{m}}$. Here resonance length is $l$, tension generated due to weight is $T$ and mass of unit length of wire is $m$. Check the correctness of this formula by dimensional method.
Draw a graph showing the variation of potential energy and kinetic energy with respect to height of a free fall under gravitational force.
A manometer reads the pressure of a gas in an enclosure as shown in Fig.$(a)$ When a pump removes some of the gas, the manometer reads as in Fig. $(b)$ The liquid used in the manometers is mercury and the atmospheric pressure is $76\ cm$ of mercury. Give the absolute and gauge pressure of the gas in the enclosure for cases $(i)$ and $(ii)$ in units of cm of mercury. How would the levels change in case $(i)$ if $13.6\ cm$ of water $($immiscible with mercury$)$ are poured into the right limb of the manometer? $($Ignore the small change in volume of the gas.$)$
List any two characteristics of simple harmonic motion.
2 cm from a horizontal pipe of unequal bore. At a point of pressure equal to Hg column, water is flowing out at a velocity of $40 cm / sec$. Calculate the pressure at the point where the velocity of water flow is $60 cm / sec$.
Find the binding energy of a hydrogen atom in the state n = 2.
Explain why: A body with large reflectivity is a poor emitter.