Consider a system of an 85.0 kg man, his 21.0-kg dog, and the earth. the gravitational potential energy of the system increases by 2.40 103 j when the man climbs a spiral staircase from the first to the second floor of an apartment building. if his dog climbs a normal staircase from the same first floor to the second floor, by how much does the potential energy of the system increase (in j)?
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Physics, 21.06.2019 22:00
Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?
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Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?
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Physics, 22.06.2019 12:00
Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?
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Consider a system of an 85.0 kg man, his 21.0-kg dog, and the earth. the gravitational potential ene...
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