Physics, 27.11.2019 22:31 uchapman6286
Afireworks rocket is fired vertically up. at its maximum height of 60.0m, it explodes and breaks into two
pieces, one with mass 1.20kg and the other with mass 0.30kg, both with horizontal initial velocities. in the
explosion, 0.960kj of chemical energy is converted to the kinetic energy of the two fragments.
what is the speed of each fragment just after the explosion? it is observed that the two fragments hit the
ground at the same time. what is the distance between the points on the ground where they land?
Answers: 2
Physics, 22.06.2019 03:30
When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy
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Physics, 22.06.2019 17:30
The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element
Answers: 1
Physics, 23.06.2019 02:30
Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.
Answers: 2
Afireworks rocket is fired vertically up. at its maximum height of 60.0m, it explodes and breaks int...
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