Calculate the gravitational force of attraction betweentwo 55 kg people who are standing 0.25 m apart.

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

What energy transformations occur each time the skateboarder rolls up the ramp?

Aforce of 6 n acts on a 33 kg object for 9 seconds. what is the objects change in velocity?