Related Questions

পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
A 36 N and 81 N
B 36 N and 40.5 N
C 36 N and 20.25 N
D 98 and 40.5 N
E 81 N and 81 N
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . A fly crawls around the outside of a circle once.A second fly crawls around the outside of a square once.Which fly travels further ? (1) The diagonal of the square is equal to the diagonal of the circle.(2) The fly crawling around the circle took more time to complete has journey than the fly cawing around the square.
A A
B B
C C
D D
The gravitational force makes a satellite go round the earth in a circular orbit, if it is projected with an initial velocity of
A 8.04 km/sec at a height of 285 km
B 11.11 km/sec at a height of 37,400 km
C 11.26 km/sec, the satellite escapes the pull of the earth
D All the above
If Bashar can run around a ground four times in 20 minutes and Rahim can run around the same ground three times in 12 minutes, who can run around that ground more times in an hour, and how many times more can he run around ?
A Bashar, three times more
B Rahim , three times more
C They both go around 12 times
D Bashar, eight times more
The size of a rectangular room is 48 square feet. If the long decreases 2 feet and wide increase 2 feet then the size of the room remain unchanged. What is width of the in feet?
A 4
B 12
C 8
D 16
Costs that are unavoidable and remain unchanged no matter what done are classified as
A sunk costs
B bunked costs
C unrecorded costs
D recorded costs
Why is weightlessness experienced while orbiting the earth in space ships ?
A Inertia
B Acceleration
C Zero gravity
D Orbital motion
Why is weightlessness experienced while orbiting the earth in space ships?
A Inertia
B Acceleration
C Zero gravity
D Orbital motion
A satellite signal transmitted from a satellite transponder to earth’s station.
A Uplink
B Downlink
C Terrestrial
D Earthbound
For interpolation of satellite data used for monitoring dynamic changes that occurs on the earth surface, the most suitable orbit for the satellite is:
A Circular orbit
B Sun-synchronous orbit
C Near polar orbit
D None of these

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