38. The current waveform shown below is an example of a(n) _?_(AC/DC) current. +2 A +1 M P S -2 Oī + 3 + + 4 5 6 7 8 TIME (SECONDS) 1 2​

Ogle–2013–blg–0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18×1024kg and radius r=5.66×106m. an astronaut whose weight on earth is w=735n lands on the planet. a. calculate m, the mass of the astronaut. b. calculate gp? , the acceleration due to gravity on the surface of ogle–2013–blg–0723. c. calculate wp? , the weight of the astronaut on the surface of ogle–2013–blg–0723. d. calculate v, the minimum velocity required to put an object into orbit above ogle–2013–blg–0723. e. calculate t, the time required to complete an orbit around ogle–2013–blg–0723.

How is the gravitational force related to the distance between two objects?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?