Which of the following is not a source of renewable energy? MCQ with Answer and Explanation

Explanation:
d = v × t / 2 = 340 × 3 / 2 = 510 m.

Explanation:
Density = 80/100 = 0.8 g/cc. Water density 1 g/cc. Fraction submerged = 0.8, so 80 cc submerged, 20 cc above. So option B correct.

Explanation:
Hydraulic brakes operate on Pascal's Law. It states that an external pressure applied to an enclosed, incompressible fluid is transmitted undiminished equally in all directions throughout the fluid volume. When force is applied to the small brake pedal cylinder, it exerts a large pressure that is transmitted to the larger wheel cylinders, amplifying the force.