John is traveling north at 20 meters/second and his friend betty is traveling south at 20 meters/second. if north is the positive direction, what are john and betty's speeds? -20 meters/second, 20 meters/second 20 meters/second, 20 meters/second -20 meters/second, -20 meters/second 0 meters/second, 40 meters/second done
Answers: 1
Physics, 21.06.2019 16:40
An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0
Answers: 1
Physics, 21.06.2019 17:10
An automobile of mass 2000 kg moving at 30 m/s is braked suddenly with a constant braking force of 10000 n. how far does the car travel before stopping?
Answers: 2
Physics, 22.06.2019 07:30
Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear
Answers: 2
John is traveling north at 20 meters/second and his friend betty is traveling south at 20 meters/sec...
Physics, 30.06.2020 07:01
Mathematics, 30.06.2020 07:01
Engineering, 30.06.2020 07:01
Mathematics, 30.06.2020 07:01
Mathematics, 30.06.2020 07:01
Mathematics, 30.06.2020 07:01
Geography, 30.06.2020 07:01
Mathematics, 30.06.2020 07:01