Un fir, de sectiune S = 5 mm patrati si lungime L0 = 32 cm, este intins de o forta. Stiind ca E = 3 * 10 la put 7 N/m patrat, sa se calculeze constanta elastica k a firului.

What part of the body are involved in voluntary movement?

What part of an atom is responsible for producing magnetic fields

At an uncontrolled intersection, when must the car on the right yield to the car on the left?

A homogenous mixture of two or more substances is known as a (n) element compound solution atom

N 1958 a large earthquake in Alaska produced a tsunami. What was the approximate height of the tsunami?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.

A boat floats with 25% of its volume under water. a. What is the boatâs density? b. If the boat was made from 500 kg of metal, what is the volume of the boat? (Assume the air in the boat has negligible mass and density) c.

Why does each mineral have their own property, different from every other mineral?

Earth's tallest mountain ranges are found at plate boundaries

Is a lung a living organism, why or why not?