7. The frequency of a turning fork is 256Hz. When it is sounded with another tuning is. three beats per second are heard. When the second turning fork is loaded with a small
quantity of wave and sounded again with the first turning fork, again 3 beats
are heard. What is the frequency of the second tuning fork? (259Hz).​

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Explain why you think this diagram shows what happened to the carbon in the biodome.

The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element