To go the maximum distance the shell must be fired at an angle of 45 degrees, which means its initial horizontal and vertical velocities are equal; call it v_1. From y=y_0 +v_1 t - (1/2)gt^2 you can set up an equation for the time the shell is aloft. Then use that expression for time in the equation for horizontal motion: x = x_0+v_1 t = 41Km and solve for v_1. Don;t forget that the initial velocity is the vector sum of the initial vertical and horizontal velocity components.
<span>Once you have the answer to (a), (b) should be straight forward.</span>
Answer:
(D) suggested that geologists had inaccurately assumed that giant rock plates that meet at the San Andrea Fault generate heat through friction.
Explanation:
- As in 1965, Henry found that temperature near the faults was not the same that was discovered earlier by the geologist and was proved by his hole drilling techniques and thus there assumptions of the giant ricks plates that are present at the San Andrea fault produced friction, as they grind through each other, was wrongly assumed.
Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.
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Answer:
=2*(3+4*1)
=2*(3 +4)
=2*(7)
=14
Explanation:
we are just applying the values
