Physics, 08.11.2020 16:40 naimareiad
A ball thrown up vertically returns to the thrower after 6 s. Find
(a)the velocity with which it was thrown up,
(b)the maximum height it reaches, and
(c)its position after 4 s.
Answers: 3
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Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg • what must the total momentum of the system be after the train cars collide? kg •
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Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same
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In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
Answers: 2
A ball thrown up vertically returns to the thrower after 6 s. Find
(a)the velocity with which it wa...
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