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.

prob 17 pic.png Determine the acceleration of the object up the incline if the coefficient of kinetic friction between the object and the surface is 0.40 for m = 6.0 kg, F = 83.0 N,  and q = 26.00.

Consider the relation Sells (bar, beer, price) and the following view that has been created to list beers sold in specific bars:   CREATE VIEW BeersView AS SELECT beer, price FROM Sells WHERE beer IN (SELECT beer FROM Sells WHERE bar = ‘Joe”s Bar’);   Why might this view not allow updates or inserts?      

Suppose we have Sells (bar, beer, price) relation and a view is created to show all beers priced below $5:   CREATE VIEW AffordableBeers AS SELECT beer, price FROM Sells WHERE price < 5; A user attempts to insert the following record through the view:   INSERT INTO AffordableBeers (beer, price) VALUES ('Corona', 6.00); What will happen in this case?    

Can a materialized view improve performance for queries that are run multiple times with the same data?