Aman is trapped in a room. the room has only two possible exits: two doors. through the first door there is a room constructed from magnifying glass. the blazing hot sun instantly fries anything or anyone that enters. through the second door there is a fire-breathing dragon. how does the man escape?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.