The diagrams below show a model airplane.
propeller
propeller
rubber
number
...
Physics, 03.02.2021 22:10 sugandiwoodbine
The diagrams below show a model airplane.
propeller
propeller
rubber
number
hand
before winding
rubber band
after winding
rubber band
Which energy transformation occurs in a rubber band powered model airplane when it is flown?
Thermal energy stored in the rubber band is transformed into chemical energy used by the propeller.
Kinetic energy stored in the rubber band is transformed into thermal energy used by the propeller.
Chemical energy stored in the rubber band is transformed into potential energy used by the propeller.
ОО
Potential energy stored in the rubber band is transformed into mechanical energy used by the propeller.
Answers: 1
Physics, 21.06.2019 22:30, tladitidimatso1783
A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?
Answers: 1
Physics, 22.06.2019 12:50, angelica3752
Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom
Answers: 1
Physics, 22.06.2019 14:30, trevorhenyan51
Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
Answers: 1
Biology, 25.01.2020 12:31
Mathematics, 25.01.2020 12:31
Mathematics, 25.01.2020 12:31
Biology, 25.01.2020 12:31
History, 25.01.2020 12:31