Question 2 (10 points)
a truck with a mass of 1390 kg is approaching a downed tree in the middle of the road ahead. the truck slows from 21.9 m/s to 11.5 m/s over a
time period of 2.88 s in order to avoid the tree. what force was required to slow the truck?

-4000 n
4000 n
-5020 n
-134 n
-483 n
5020 n
134 n
483 n

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element