A ball is projected vertically upward from the surface of the Earth with an initial speed of +49 meters per second. The ball reaches its maximum height in 5.0 seconds. What is the maximum height reached by the ball?

376.5 m

Explanation:

we know that

s=ut + 1/2 at^2

so here

u=49 m/s

t=5s

and a=g=9.8 m/s^2

so

s= 49×5 +1/2 ×9.8× 5×5

= 254+ 122.5

s= 376.5

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2