Un bloque de 4 kg es desplazado hacia arriba por una rampa de 30° de inclinación con respecto a la horizontal y con velocidad de 40 m sobre Segundo si el coeficiente de fricción es de punto 4 calcular la aceleración y la distancia hasta que paro.

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )