Patru elevi au măsurat aria unui caiet şi au găsit valorile: A 1 =14,50 cm 2 , A 2 = 14,10 cm 2 , A 3= 14,40 cm 2 şi A 4 = 14,60 cm 2 . Media aritmetică a măsurătorilor este…………………………
Cea mai mică eroare de măsurare faţă de valoarea medie o are elevul…………….

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving