Physics, 19.08.2019 09:30 sanaiajohnson56
Identical twins kate and karen are rowing their boat on a hot summer afternoon when they decide to go for
a swim. kate, whose mass is 45 kilograms, jumps off the front of the boat at a speed of 3.00 m/sec. karen
jumps off the back at a speed of 4.00 m/sec. if the 70-kilogram rowboat is moving at 1.00m/s when the girls
jump, what is the speed of the rowboat after the girls jump?
Answers: 1
Physics, 21.06.2019 17:20
The momentum of an isolated system is conserved a) only in inelastic collisions. b) only in elastic collisions. c) in both elastic and inelastic collisions
Answers: 2
Physics, 22.06.2019 07:30
30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
Answers: 1
Physics, 22.06.2019 08:40
Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?
Answers: 1
Physics, 22.06.2019 11:00
The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.
Answers: 3
Identical twins kate and karen are rowing their boat on a hot summer afternoon when they decide to g...
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