Will mark brainliest and 20 !
a child’s first bicycle has 12-inch tires. these tires have a 6-inch radius. how far does the bicycle move forward each time the wheel makes one complete rotation? give your answer in meters.
(1 inch = 0.022 meters)

An air bubble of volume 20 cm³ is at the bottom of a lake 40 m deep, where the temperature is 4.0°c. the bubble rises to the surface, which is at a temperature of 20°c.take the temperature of the bubble’s air to be the same as that of the surrounding water. just as the bubble reaches the surface, what is its volume?

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.