Cuando una fuerza de 500 N empuja una caja de 25 kg, como se muestra en la figura, la aceleración de la caja al subir por el plano es 0.75 m/s2. Calcule el coeficiente de fricción cinética entre la caja y el plano

Amanometer is used to measure the air pressure in a tank. the fluid used has a specific gravity of 1.25, and the differential height between the two arms of the manometer is 34 in. if the local atmospheric pressure is 12.7 psia, determine the absolute pressure in the tank for the cases of the

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.