if identical bullets are shot from a pistol and a rifle a bullet shot from the rifle will travel at a higher speed than a bullet from thr pistol why?

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.