You are driving a car behind a truck. both your car and the truck are moving at a speed of 80 km/hr. if the driver of that truck suddenly slams on the brakes, what minimum distance between your car and the truck is needed so that your car does not crash into the truck's rear end? (the truck and the car have the same braking acceleration.) indicate any assumptions that you made. for both the truck and the car, draw an acceleration- and velocity-versus-time graph.

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?