In a question about a spacecraft in orbit, a student writes: “The gravitational pull of the Earth is balanced by the centripetal force of the space craft
and so it stays in orbit."

Explain why this statement and is incorrect and write a corrected version​

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

If y gets smaller as x gets bigger and y have an relationship?

In science and physics what is the standard unit of measure for speed?