Athin, 74.0-cm wire has a mass of 16.6 g . one end is tied to a nail, and the other end is attached to a screw that can be adjusted to vary the tension in the wire. to what tension (in newtons) must you adjust the screw so that a transverse wave of wavelength 3.36 cm makes 626 vibrations per second?

Which fators influence ocean currents

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .