8. A city traffic system introduced separate express lanes for carpools that allowed them to bypass rush hour traffic. This increased the number of people
choosing to carpool to work. Which outcomes was the initiative designed to
support
O A to reduce the use of fossil fuels resources
OB to promote the use of nonrenewable resources
OC to decrease the dependency on solar resources
O D. to increase the dependency on renewable resources
1 pts

Which type of wave can travel without a medium

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.