A body is projected down at an angle of 30° with the horizontal from the top, of a building 170m high. Its initial speed is 40m/s .
How long will it take before striking the ground.

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic

i believe the answer is a hope it and is correct

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

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr