30 POINTS A cannonball is shot from a cannon at a launch angle of 63o and an initial velocity of 147 m/s. The gravitational acceleration is −9.8 m/s2. Assuming NO air resistance, how long will it take the cannonball to reach the peak of its trajectory?

Question 5 options:

9.8 s

13.4 s

40.2 s

26.7 s

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.