Physics, 21.01.2020 01:31, shjsmbee8177
Asled and rider, gliding over horizontal, frictionless ice at 4.7 m/s , have a combined mass of 80 kg . the sled then slides over a rough spot in the ice, slowing down to 3.4 m/s . what impulse was delivered to the sled by the friction force from the rough spot? express your answer to two significant figures and include the appropriate units.
Answers: 2
Physics, 22.06.2019 08:40, kayleewoodard
Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?
Answers: 1
Physics, 22.06.2019 16:00, Andrebutrus
The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
Asled and rider, gliding over horizontal, frictionless ice at 4.7 m/s , have a combined mass of 80 k...
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