What is the first thing you should do as a coach when one of your students has sustained a bump or blow to the head or body and isn’t acting right?Immediately rush a student to the hospital. Allow the student to finish out the quarter/period/half, etc. and then take the student for a medical examination. Remove the student from play and look for signs and symptoms of a concussion

Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?