Question
Distinguish between longitudinal and transverse waves.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
A girl of mass 50kg jumps out of a rowing boat of mass 300kg on to the bank, with a horizontal velocity of 3m/s. With what velocity does the boat begin to move backwards?
| Species Property | H2O | CO2 | Na atom | MgCl2 |
| No. of moles | 2 | — | — | 0.5 |
| No. of particles | — | 3.011 × 1023 | — | — |
| Mass | 36g | — | 115g | — |
Two objects having equal masses are moving with uniform velocities of 2m/s and 6m/s respectively. Calculate the ratio of their kinetic energies.