¿Qué describe la ley de Coulomb propuesta por el fisico francés Charles Augustin de Coulomb para el año de 1785 ?

Calculate the following: 1.1.1 The resultant velocity in magnitudo and direction 1.1 .2 The distance the ship will cruise in 5 hours

9. A 0.13 kg puck is moving in a circular path on a horizontal air table where friction is negligible. The centripetal force is provided by a cord 0.68 m long attached in the centre of the air table. If the tension in the cord is 2.5 N , what is the speed of the puck?

QUESTION 5: HYDRAULICS 5.1 The data below refer to a single-acting hydraulic press. Diameter of the ram piston \( \quad=450 \mathrm{~mm} \) Diameter of the plunger piston \( \quad=100 \mathrm{~mm} \) Stroke length of the plunger \( =120 \mathrm{~mm} \) Mechanical advantage of the plunger \( =20 \)

3.1 A truck with a mass of 1 ton is moving at \( 80 \mathrm{~km} / \mathrm{h} \) on a horizontal plane and braked to rest over 40 m . Calculate the following: 3.1.1 The deceleration 3.1.2 The braking force

A 63 kg student is on a 15 m diameter Ferris wheel rotating at a constant rate with a period of 18 s . What force does the seat exert on the student at the bottom of the circle?