Liquid ammonia (NH3) is applied as a fertilizer. You are working for a company that applies the ammonia (they charge a lot for every pound they apply to the soil) and you keep track of the pounds of ammonia that has been applied from the tank on the back end of your pickup (four wheel drive with big tires). After the liquid has been emptied from the tank there is still gas ammonia left in the tank. It has been sitting in the sun and its temperature is 125o F. Also the pressure gauge at the top of the tank shows 230 psig (pounds per square inch gauge). The tank has a volume of 120 ft3. How many pounds of ammonia are left in the tank

The necleus of an atom is made up of what subatomic particles?

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?