Extracting numbers from strings [on hold]

I have a list of values in a list p, which is as follows:

p = ['38.5 C', '51 %', '40.5 W/m2', '60 ohm'] 

I wish to extract the numerical values in the list, into a list q, which will have values as follows:

q = [38.5, 51, 40.5, 60] 

How do I achieve this in Python 3?

My attempt:

import re
a = '39.5 C'
b = re.findall(r'd+.*d*', a)
b = ['39.5'] 

Now I try:

p = ['38.5 C', '51 %', '40.5 W/m2', '60 ohm']
b = re.findall(r'd+.*d*', p)

That's not working! Therefore

l = []
for s in p:
    b = re.findall(r'd+.*d*', s) #returns a list of numbers
    l.append(float(b[0])) #because the earlier command returns a list of numbers. 

I want this in a more elegant way!