Laws of MotionHard
Question
If a metallic sphere gets cooled from 62oC to 50oC in 10 minutes and in the next 10 minutes gets cooled to 42oC, then the temperature of the surroundings is :-
(Assuming Newton′s laws of cooling is valid)
(Assuming Newton′s laws of cooling is valid)
Options
A.30oC
B.36oC
C.26oC
D.20oC
More Laws of Motion Questions
The surface are frictionless, the ratio of T1 and T2 is :-...A rocket is ejecting 1 kg of gases per sec at a velocity of 60 km/s. The accelerating force on the rocket is...A particle stays at rest as seen in a frame. We can conclude that...When we kick a stone we get hurt. Due to which one of the following properties of stone it happens :-...Which of the following is not measured in units of energy :-...