On mars the gravity acting on an object is less than that on earth on earth a golf ball hit with an initial upward velocity of 26 meters per second will hit the ground and about 5.4 seconds the height h of an object on mars that leaves the ground with an initial velocity of 26 meters per second is given by the equation h = -1.9t ^ 2 + 26t how much longer will it take for the golf ball hit on mars to reach the ground? round your answer to the nearest tenth.

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

What is the surface area of the sphere?