The type of two-stroke engine that uses a spinning plate with a hole in it to control the flow of fuel to the cylinder is called a a. plate-port engine. b. rotary-valve engine. c. reed-valve engine. d. piston-port engine.

When describing down syndrome, it's important to note that a. it can be classified as a single-gene disorder b. it is caused when red blood cells cannot properly form hemoglobin c. it causes infected males to have low testosterone levels d. it is usually caused by three copies of chromosome 21 select the best answer from the choices provided. a b

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

Acar travels 40m in 8 seconds find the car speed