Physics, 07.06.2020 21:57 dtbrooks4792
Na figura, um bloco de massa igual a 5Kg é abandonado em repouso em um plano inclinado. Supondo que os coeficientes de atrito estático e dinâmico sejam idênticos e valem µe = µd = 0,90 e sendo θ=36,8°, determine: a) a intensidade da componente P em x b) a intensidade da força Normal c) a intensidade da força de atrito d) a aceleração do bloco (justifique sua resposta)
Answers: 1
Physics, 21.06.2019 18:30
A10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. they are then released so that the spring pushes the two carts apart. the 10.0 kg cart is moving at 4.5 m/s afterward. how fast is the 15kg cart moving? 3.0 m/s 2.0 m/s 4.5 m/s 5.0 m/s
Answers: 1
Physics, 22.06.2019 07:30
Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?
Answers: 1
Physics, 22.06.2019 09:00
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
Answers: 1
Physics, 22.06.2019 10:30
Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.
Answers: 1
Na figura, um bloco de massa igual a 5Kg é abandonado em repouso em um plano inclinado. Supondo que...
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