Physics, 12.03.2021 14:40 knownperson233
A man uses a rod of length 5.0m to lift a 700 kg marble. The fulcrum is 0.50m from the end of the bar that is under the marble. Calculate the mechanical advantage and minimum effort required to lift the load. If the efficiency of this system is 90% determine it's velocity ratio.​
Answers: 1
Physics, 22.06.2019 13:00
The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot
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Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
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Physics, 22.06.2019 18:30
En un laboratorio, nakisha mezcla una solución de hidróxido de sodio con un indicador llamado fenolftaleÃna. cuando se combinan, crean una solución de color rosa. nakisha se pregunta si la mezcla de otras soluciones con fenolftaleÃna también creará este color rosa. ? cómo podrÃa nakisha utilizar el proceso de investigación cientÃfica para determinar si la mezcla de otras soluciones con fenolftaleÃna también creará un color rosa? marque las que correspondan.
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Physics, 22.06.2019 20:00
Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?
Answers: 1
A man uses a rod of length 5.0m to lift a 700 kg marble. The fulcrum is 0.50m from the end of the ba...
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