Physics, 26.06.2019 15:30 destanybrunson
What process takes solid co2 from a solid to a gas? a) boiling b) melting c) sublimation d) vaporization
Answers: 1
Physics, 22.06.2019 14:00
Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car
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Physics, 23.06.2019 04:31
The radioactive isotope of lead, pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. if 1 gram of this isotope is present initially, how long will it take for 80% of the lead to decay? (round your answer to two decimal places.)
Answers: 2
Physics, 23.06.2019 05:30
Aman jogs at a velocity of 2.5 m/s west for 1,200 s. he then walks at a velocity 1.0 m/s east for 500 s and then stops to rest . what is the displacement of man when he stops to rest?
Answers: 3
Physics, 23.06.2019 08:00
Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano. the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? a.positive force, balanced force, negative force b.negative force, balanced force, positive force c.positive force, unbalanced force, negative force d. negative force, unbalanced force, positive force
Answers: 1
What process takes solid co2 from a solid to a gas? a) boiling b) melting c) sublimation d) vaporiz...
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