White paint purchased at a store is often made of a pure white pigment called titanium dioxide. This white paint reflects about 97% of the light that strikes it. Why might this property of the paint mean that you interpret its color as white?

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?