A fixed mass of gas of volume 600cm^3 at a temperature of 30°c is cooled to 0°c. At the same time, the volume is increased by 100cm^3. Determine the change in the pressure of the gas if the final pressure of gas is 5.0 × 10^4pa ​

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

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