input: Write a python function to find the top 10 most visited URLs for a given day from a log file.
  assert find_top_urls('sample.log', '2020-06-04')==[('/home', 12), ('/contact', 8), ('/about', 7), ('/blog', 5), ('/login', 4), ('/signup', 3), ('/faq', 3), ('/terms', 2), ('/privacy', 2), ('/services', 1)]
  assert find_top_urls('sample.log', '2020-06-05')==[('/home', 15), ('/contact', 10), ('/about', 9), ('/blog', 7), ('/login', 6), ('/signup', 5), ('/faq', 4), ('/terms', 3), ('/privacy', 2), ('/services', 1)]
output: def find_top_urls(log_file, date):
      from collections import defaultdict, Counter
      
      url_count = defaultdict(int)
      
      with open(log_file, 'r') as file:
          for line in file:
              log_date, url = line.strip().split(' ')
              if log_date == date:
                  url_count[url] += 1
                  
      top_urls = Counter(url_count).most_common(10)
      return top_urls