Ashell is fired from the ground with an initial speed of 1.60 × 103 m/s (approximately five times the speed of sound) at an initial angle of 51.0 ◦ to the horizontal. the acceleration of gravity is 9.81 m/s 2 . a) neglecting air resistance, find the shell’s horizontal range. answer in units of m.

The horizontal range will be

Explanation:

We have given initial speed of the shell u =

Angle of projection = 51°

Acceleration due to gravity

We have to find maximum range

Horizontal range in projectile motion is given by

So the horizontal range will be

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it