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Naveen
Questions and answers by visitors named
Naveen
Questions (17)
The diameter of a ball bearing is to have an average of 2.0 Cm. A random sample of 10 bearings is selected every hour to check
2 answers
481 views
Eight coins are tossed at a time,256 times Number of heads observed at each throw is recorded and the results are given below.
3 answers
2,102 views
How many litres of water are produced when 3.3 litres of hydrogen is burnt in excess of oxygen at 25degree centigrade?
1 answer
489 views
The mass of silver produced by thermal decomposition of 5.52g Ag2CO3
2 answers
551 views
The area of a rectangular park is 4800 Sq me if the ratio of the length and breadth is 3:4,find its length and breadth
3 answers
1,056 views
A train travels 30m/s then breaks are suddenly applied producing a retarding force equal to 1/10 of the weight of the train runs
4 answers
2,460 views
There are 27 apples, 23 oranges, and 15 pears in a bag. What is the probability of randomly getting an orange when you grab one
1 answer
383 views
What is the Wow! signal? A) A UV signal, recorded by the International Ultraviolet Explorer in 1975 B) A strong narrow-band
1 answer
198 views
What is the accepted explanation for the Wow! signal? A) One-time radiative burst B) Rotating light-house event, similar to a
1 answer
208 views
The 1420 MHz signal associated with the Wow! event is known to resemble A) a spectral line of hydrogen, the most common element
1 answer
277 views
What do we know about the dimensions and the origin of the Oumuamua object? A) It is several miles across; it originated from
1 answer
188 views
Apparently, what is the place of origin of the Oumuamua object? A) Asteroid belt B) Kuiper belt C) Interstellar region D) Close
1 answer
181 views
Which natural explanation (as of February 2021) has been forwarded about the Oumuamua object? A) A miniture black hole B) An
1 answer
203 views
According to the Kardashev scale, what is a Type I civilization? A) They tend to utilize the energy of colliding planets in
1 answer
199 views
Regarding the Kardashev scale, which type of modification has been offered by Carl Sagan? A) A numerical expansion, based on the
1 answer
229 views
Following Michio Kaku, when is humanity by expected to reach Type II status? A) In 100-200 years B) In a few thousand years C)
1 answer
186 views
Which of the following questions best represents the Fermi paradox? A) Why can't we travel faster than the speed of light? B)
1 answer
290 views
Answers (1)
9.8 joules
