Physics, 29.06.2019 15:10 bbyjean9974
No sistema de corpos da figura a aceleração da gravidade vale 10 m/s², a massa a vale 4 kg e a massa b vale 6 kg. se o atrito entre o plano e a superfície de apoio é desprezível então a aceleração do conjunto é : a. 1 m/s² b. 4 m/s² c. 6 m/s² d. 0,25 m/s² e. 10 m/s²
Answers: 1
Physics, 22.06.2019 05:20
Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.
Answers: 2
Physics, 22.06.2019 05:30
A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?
Answers: 3
Physics, 22.06.2019 19:20
The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?
Answers: 1
No sistema de corpos da figura a aceleração da gravidade vale 10 m/s², a massa a vale 4 kg e a massa...
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