Help needed ASAP In a lab experiment, a string has a mass per unit length of 0.120 g/m. It is attached to a vibrating device and weight as shown in the figure. The vibrating device oscillates at a constant frequency of 157 Hz.

where P = 157.

What should be the three largest weights in order to produce standing waves in a string of length 42.0 cm?

The softest and hardest minerals are: softest hardest

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.