For energy दिइएको चित्रको अध्ययन गरी सोधिएको प्रश्नहरूको उत्तर दिनुहोस्:
10N
Spring
balance
stone
Study the given diagram and answer the follwing questions.
उक्त ढुङ्गाको तौल हावामा कति हुन्छ ? What is the weight of stone in air?
di) उक्त ढुङ्गामा पानीले कति उर्ध्वचाप दिन्छ ?
How much upthrust is exerted by water on that stone?
(i) उक्त ढुङ्गाको पिण्ड हावामा कति हुन्छ ? What is the mass of that stone in air?
[Ans : 1.53 kg]
(iv) यो प्रयोग कुन सिद्धान्तमा आधारित छ ?
In which princiiple is the experiment based on?
फ दिनहोस?
Water
5N​

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?

Which substance partical has negligible massand travels around outsidethe nucleus