I just started the semester off in physics lab and I am so rusty. I did three perfectly okay by myself but these last three I can't seem to figure out. Any help on the direction to take with these is appreciated! c) T = 0.433 ± 0.004 s. Calculate T^2 andΔT^2. d) Given d = vt, v = 55 mi/hr ± 5% and t = 5.00± 0.03 hrs, calculate d and Δd. Like here do I put in d= (55 ± 5%)(5.00 ± 0.03) I know I have to get the percent into an actually number, I can do that. but I dont know if this is the way to go about it and then I really dont know how to get Δd. e) Given a = 2d/ t2 , d = 82.0 ± 0.2 cm and t = 4.23 ± 0.05 s, calculate a and Δa.