Un bloque de 3.00 kg inicia en la parte superior de una plano inclinado 30.0 y se desliza 2.00 m hacia abajo sobre el plano en 1.50 s. determine a) la aceleración del bloque, b) el coeficiente de fricción cinética entre el bloque y el plano inclinado, c) la fuerza de fricción que actúa sobre el bloque y d) la rapidez del bloque después de que se deslizó 2.00 m.

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Which is not true about oxygen-17 and oxygen-18?

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely