What is an organelle that assembles a cells protein into larger proteins

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.