A pendulum clock is taken to the moon (g = 1.6 N/kg). How long must the pendulum be in order for the clock to continue keeping accurate time (1 second cycle)?
3.2 m
7.9 m
0 0.25 m
0.041 m

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

Work = force × a. work b. energy c. distance d. momentum

What’s #16 asking and how do i solve it?