Bir taş, 75 m yükseklikli bir uçurumun kenarından 12.5 m/s süratle düşey olarak yukarı doğru atılıyor

What is the length x of the side of the triangle below? (hint: use the cosine function)

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j