Physics, 18.02.2021 17:40 ShlomoShekelstein
14. The study of Earth's surface, and everything on it. a) Geography b)Geology c)Geometry d) Trigonometry
Answers: 3
Physics, 22.06.2019 06:30
Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
Answers: 1
Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
Answers: 3
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 14:40
14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is
Answers: 1
14. The study of Earth's surface, and everything on it.
a) Geography b)Geology c)Geometry d) Trigon...
Mathematics, 05.07.2019 14:00
Mathematics, 05.07.2019 14:00
Mathematics, 05.07.2019 14:00
Physics, 05.07.2019 14:00
Biology, 05.07.2019 14:00
English, 05.07.2019 14:00
History, 05.07.2019 14:00
Computers and Technology, 05.07.2019 14:00
Mathematics, 05.07.2019 14:00
History, 05.07.2019 14:00
Mathematics, 05.07.2019 14:00
Mathematics, 05.07.2019 14:00