Apoint charge q1=15.00μc is held fixed in space. from a horizontal distance of 6.00 cm , a small sphere with mass 4.00×10−3kg and charge q2=+2.00μc is fired toward the fixed charge with an initial speed of 41.0 m/s . gravity can be neglected.
what is the acceleration of the sphere at the instant when its speed is 26.0 m/s ?

Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?