![Calculate the temperature of 6 moles of an ideal gas at a pressure of 7.6 x 106Nm−² with a volume of 10−³m³. [R = 8.3jmol−¹K−¹]](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
Which of the following waves is both transverse and mechanical?
A. Water waves B. Radio waves C. Sound waves D. X-rays Correct Answer: Option A – Water waves
A train with an initial velocity of 20m/s¹ is subjected to a uniform deceleration of 2ms−². The time required to bring the train to a complete halt is?
A. 40s B. 10s C. 20s D. 5s Correct Answer: Option B – 10s Explanation t = v−u/a = 20−0/2 = 10s
Which of the following electromagnetic waves has the shortest wavelength?
A. Visible Light B. Ultraviolet rays C. Infrared rays D. Gamma rays Correct Answer: Option D – Gamma rays
A projectile is fired from the ground level with a velocity of 300ms−¹ at an angle of a 30o to the horizontal. Calculate the time taken to reach the maximum height? [g = 10ms−²]
A. 30s B. 20s C. 25s D. 15s Correct Answer: Option D – 15s Explanation The total time of flight is given as T=2usinθ/g Hence, time to maximum height is half of the total time of flight, t = usinθ/g = 300sin30/10 =...Products
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Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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