A skateboarder is moving to the right with a velocity of 8 m/s After a steady gust of wind that lasts 5 s s he skateboarder is moving to the right with a velocity of 5 m/s. Assuming the acceleration is constant, what is the acceleration of the skateboarder during the 5 time period?

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=

Which of the following are molecules? a. al b. ag c. mgcl2 d. nacl e. c3h8

In an exothermic chemical reaction the energy gained by the surroundings must be the energy lost by the reaction