Asteroid X orbits moon XYZ with a speed of 500 m/s and a centripetal force of 1500N. Asteroids X, Y and Z all have the same mass. i. If asteroid Y orbits moon XYZ with the same orbital radius as asteroid X but at a speed of 1000 m/s, what is the centripetal force acting on asteroid Y? ii. If asteroid Z orbits moon XYZ with a speed of 1500 m/s but on orbital radius that is half of asteroid X, what is the centripetal force acting on asteroid Z?

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k