9. How could the function y = 3t^2 + 4 be plotted on a Cartesian graph to produce a straight line? What would be the numerical values of the slope and intercept of
the line?

Explain the doppler effect in terms of frequency, wavelength, and speed.

Is the number of complete movements of a wave per second.

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)