In a certain road accident a car of mass 2000 kg, travelling south at 6 m/s, collides with a 6000 kg truck, travelling SW at 5 m/s. After the collision the vehicles get tangled up and slide off the road
freely, as one unit. (30 points total)
(a) Find the momentum of the car before the collision. (3 pts)
(b) Find the momentum of the truck before the collision. (3 pts)
(c) Find the momentum of the system before the collision. (12 pts)
(d) Find the momentum of the system after the collision. (6 pts)
(e) Find the velocity of the car-truck unit (the wreckage) after the collision. (6 pts

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

In the future, people will only enjoy one sport: electrodisc. in this sport, you gain points when you cause metallic discs hovering on a field to exchange charge. you are an electrodisc player playing the popular four disc variant. the disks have charges of qa = −8.0 µc, qb = −2.0 µc, qc = +5.0 µc, and qd = +12.0 µc. (1) you bring two disks together and then separate them. you measure the resulting charge of these two disks and find that it is +5.0 µc per disk. which two disks did you bring together? (a) a and b (b) a and c (c)a and d (d)b and c(e) b and d (f) c and d. (2) you bring three disks together and then separate them. you measure the resulting charge of these three disks and find that it is +3.0 µc per disk. which three disks did you bring together? a, b, and c (a) a, b, and d (c) a, c, and d (d) b, c, and d. (3) given the resulting charge of each disk measured in (b) is +3.0 µc, how many electrons would you need to add to a disk of this charge to electrically neutralize it? electrons

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)