Answer:
122.17 m/s
Explanation:
x cos 40 = horizontal velocity
1500 m / x cos 40 = time in the air =<u> 1958.11 / x</u>
x sin 40 = vertical velocity
find when shell vertical velocity = 0 (this is max height....1/2 way through its flight) , the time when it hits the ground will be twice this...
0 = x sin 40 - 9.8 t
t = x sin40 / 9.8 time in the air is twice this = .13118<u> x</u>
<u />
Equate the two times from above to solve for x
1958.11/ x = .13118 x
x = 122.17 m/s
Answer:
Newton is the SI unit used to measure force. It is represented by the symbol N.
HOPE THIS HELPS!!
I believe this is a true or false question. The answer is true. The reason we have seasons is because of the earths tilt. So without it, we would simply have a constant weather pattern. That's why it can get so cold around the North Pole, the tilt is most drastic there. So the real answer is that it depends on where you live. If you're on the equator, then no, not having a tilt won't impact climate much, but the further you are from the equator, the more change there would be.
Answer: Figure 1: The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. Nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons
Answer:
F = ma The force of friction for a 7.5-kg object being pushed horizontally at a constant A 30-kg wooden box is resting on a carpeted surface. If the ... An applied force of 21 N accelerates a 9.0-kg wagon at 2.0 m/s² along the sidewalk. (u=0,034. 5. A sled of mass of 50.0 kg is pulled along a flat, snow-covered ground.
Explanation: