Physics, 26.11.2020 22:10 juansebas35
Calcular la aceleración (en m/s2) que se aplica para que un móvil que se desplaza en línea recta a 90 km/h reduzca su velocidad a 50.0 km/h en 25 segundos.
Answers: 1
![90[\frac{km}{h} ]*[\frac{1h}{3600s} ]*[\frac{1000m}{km} ]=25[m/s]\\50[\frac{km}{h} ]*[\frac{1h}{3600s} ]*[\frac{1000m}{km} ]=13.88[m/s]](/tpl/images/0930/3078/d3084.png)
![13.88=25-a*25\\25-13.88 = 25*a\\25*a=11.11\\a=0.44[m/s^{2} ]](/tpl/images/0930/3078/24b25.png)
Another question on Physics
Physics, 22.06.2019 12:50
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 17:10
Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up
Answers: 2
Physics, 23.06.2019 00:20
When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve
Answers: 1
You know the right answer?
Calcular la aceleración (en m/s2) que se aplica para que un móvil que se desplaza en línea recta a 9...
Questions
Mathematics, 04.03.2020 08:43
Mathematics, 04.03.2020 08:43
Biology, 04.03.2020 08:44
Social Studies, 04.03.2020 08:44
Chemistry, 04.03.2020 08:45
Mathematics, 04.03.2020 08:45
Mathematics, 04.03.2020 08:46
English, 04.03.2020 08:50
Mathematics, 04.03.2020 08:52
Biology, 04.03.2020 08:52
World Languages, 04.03.2020 08:52
English, 04.03.2020 08:52
Biology, 04.03.2020 08:52
