The diagram below shows the position of the sun and two galaxies, G1 and G2
distance between the sun and galaxy G1 is represented by Y.
What is the value of Y in km?
1) 100 billion km
O2) 100 million km
O3) 500 billion km
O4) 500 million km

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.