The average distance between the Earth's and the Moon's center is 3.856 x 108 m. The mass of the Earth is 5.972 x 1024 kg and the mass of the Moon is 7.348
x 1022 kg. What is the magnitude of the gravitational attraction between the
Earth and the Moon?
A. 9.169 x 1026
B. 1.969 x 1020
C. 6.961 x 1024

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

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.

Photons with the highest energy have the longest period