1. Dois termômetros, um graduado na escala Celsius e outro na escala Fahrenheit fornecem a mesma leitura
para a temperatura de um gás. Determine o valor dessa
temperatura.
2. Uma certa escala termométrica adota os valores de -20
para o ponto de fusão do gelo e 580 para a ebulição da
água líquida. Determine:
A. a fórmula de conversão entre as duas escalas;
b. a indicação dessa escala que corresponde a
20 °C.

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j