8. Una fuerza de 100 N actúa sobre un cuerpo que se desplaza a lo largo de
un plano horizontal en la misma dirección del movimiento. Si el cuerpo se
desplaza 20 m. (Recuerda que si es en un plano horizontal el ángulo es cero)
¿Cuál es el trabajo realizado por dicha fuerza?

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.