Physics, 07.06.2020 03:58 babbiegirl8035
Una pluma de una grúa carga 100 N, la pluma mide en total 9 m y su punto de soporte está a 5 m en el extremo contrario. Tiene un contrapeso a 4 m de distancia del punto de apoyo. Calcula: a)La magnitud del contrapeso que se debe colocar en el otro extremo para que la viga quede en equilibrio. b)La magnitud de la tensión que sostiene el soporte, sin considerar el peso de la viga.
Answers: 2
Physics, 21.06.2019 13:40
Which of the statements about waves is true? a. in longitudinal waves, particles move perpendicular to the direction the wave is traveling.b. both transverse and longitudinal waves can travel through water c. electromagnetic waves are a type of longitudinal waves.d. in a transverse wave, particles move parallel to the direction the wave is traveling.
Answers: 1
Physics, 22.06.2019 15:00
Steelhead trout migrate up stream to spawn.occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b.leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?
Answers: 2
Physics, 22.06.2019 19:10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
Physics, 22.06.2019 23:00
Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?
Answers: 1
Una pluma de una grúa carga 100 N, la pluma mide en total 9 m y su punto de soporte está a 5 m en el...
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