A child riding a bicycle at 15 m/s accelerates at 3.0 m/s/s for 4.0 s. What is the child's speed at the end of this 4.0 s interval?

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.

Of is j/kg·k. if a 2.6 kg of isk to k,is ?

Why do different substances have diffrent properties