1. There are stars whose brightness varies periodically. These stars are called pulsating stars. An astronomer hypothesizes that the time taken t for the star to undergo one oscillation depends on the star’s density ρ, the star’s radius r and Newton’s Gravitational constant G. Newton’s Gravitational constant G has dimensions M-1L3T-2. A. i. State the dimension of t.
ii. Determine the dimension of ρ.
iii. State the dimension of r.
B. Use dimensional analysis to predict the form of the equation for the time taken t for the star to undergo one oscillation. Include all steps and assumptions made.

radiation warms things up temp rises convection currents air circ windy weather

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.

the right answer is 0.3 meters per second