2. A teacher decided to tile his classroom floor using the same pattern. After he was finished, he counted 80 pink tiles on his classroom floor. How many grey tiles did he use?

After a car's engine has been running for a while, if you stand near the car's engine you can often feel heat coming from the engine as a result of a. radiation b. convection c. conduction

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?