I'm not sure what "60 degree horizontal" means.

I'm going to assume that it means a direction aimed 60 degrees

above the horizon and 30 degrees below the zenith.

Now, I'll answer the question that I have invented.

When the shot is fired with speed of 'S' in that direction,

the horizontal component of its velocity is S cos(60) = 0.5 S ,

and the vertical component is S sin(60) = S√3/2 = 0.866 S . (rounded)

-- 0.75 of its kinetic energy is due to its vertical velocity.

That much of its KE gets used up by climbing against gravity.

-- 0.25 of its kinetic energy is due to its horizontal velocity.

That doesn't change.

-- So at the top of its trajectory, its KE is 0.25 of what it had originally.

That's ** E/4** .

**Answer: electromagnetism.**

**Explanation:The use of coils of wires produces a relationship between electricity and magnetism that gives us another magetism called electromagnetism.**

**Answer:**

**Explanation:**

Assuming no energy lost, according to the law of conservation of energy, the kinetic energy of the automobile becomes potential energy after the crash:

Here m is the automobile's mass, v is the speed of the car before impact, k is the "bumper" constant and x is the compression of the bumper due to the collision. Solving for v:

the puck recoils in each case.

larger mass stone gives puck greater recoil, smaller stone, smaller recoil

The answer is A. Or the first option. Pressure is changed by lowering the pressure, not reducing the volume. You would assume its C but its A.