The English unit of force is the “pound”. The SI (metric) unit of force is the (Whoever answers this is gonna get crowned brainiest thx)

Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?