An object changing direction is an example of

a. acceleration
b. speed
c. velocity
d. constant rate

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic