Which mode specifier will erase the contents of a file if it already exists and create the file if it does not already exist, and which one will let you open the file but will not let you change its contents?

What will be the result when the main() is called?  def main():  n1 = 4  n2 = 2  print(fncA(n1, n2)) def fncA(n1, n2):  j = 0  s = ”  while j

What will be displayed after the following code is executed? total = 0 for count in range(1, 4):   total += count print(total)

Which of the following will correctly fill in the blanks and produce the shown result? movie_len = 150 # in minutes hours = movie_len ___ 60 minutes = movie_len ___ 60 print(‘The movie is ‘ + ___ + ‘:’ + ____ + ‘ long!’) Result: The movie is 2:30 long!

What will be displayed when the following script executes, assuming that a = 5, b = 3, and c = 6?if a > c:  x = 1  print(x)else:  if b > c:    x = 2    print(x)  else:    x = 3    print(x)

Assume a, b, c, d and e are float variables, and the first four have values assigned. Which one of the following is the correct way to first add a and b, then divide by the difference between c and d, and assign the result to variable e?

A projectile is launched from ground level at an angle of 50.0° above horizontal with a speed of 30.0 m/s. If the projectile is moving over level ground, how long is it in the air before it again contacts the ground?

FIGURE 2-9 f4g1q30g1.jpg Refer to Fig. 2-9. If you start from the Bakery, travel to the Art Gallery, and then to the Cafe, in 1.0 hour, what is your average speed?

FIGURE 2-9 f4g1q24g1.jpg Refer to Fig. 2-9. If you start from the Bakery, travel to the Cafe, and then to the Art Gallery, what is the magnitude of your displacement?

prob 22 pic.png Determine the direction’ measured counter-clockwise from the positive x-direction’ of the acceleration for m = 2.0 kg, F1 = 32.0 N, F2 = 18.0 N, F3 = 22.0 N, θ1 = 37.00, and θ2 = 25.00.