a projectile is fired at a launch velocity of 135.0 m/s at an angle of 37 to the horizontal how long will it take the projectile to reach the highest point in the trajectory

Because they're in different places for this the temperature varies.

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips.