What is the mechanical advantage of the level shown below?

a. 0.79
b. 1.27
c. 2.6
d. 3.67

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

3. which is not a primary color of light? blue red green yellow

Are formed where bumps from two surfaces come into contact ?