For an object that has positive constant acceleration what does the speed vs time graph look like

The graph look like a line with positive slope and y-intercept equal to zero.

Explanation:

Acceleration (a) is defined as follows:

a = v/t

where v refers to speed and t refers to time.

Isolating speed in the equation we get:

v = a*t

With a positive constant acceleration, this is the equation of a line with v as dependent variable, t as independent variable, and a as positive slope, which passes through coordinate (0, 0).

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer