Sub ce presiune se găsește o bulă de aer în apă la adâncimea de 2m? Presiunea atmosferică se va considera egală cu 100kPa.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?

Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?

An object has a weight of 500 on earth what is the mass of this object