Answer:
Explanation:
Let the time taken by the shot to reach to maximum height is t.
initial velocity, vi
angle of projection, θ
Acceleration, g
At maximum height, the vertical component of velocity is zero.
use first equation of motion in vertical motion
The specific heat capacity of the metal is
Explanation:
When a substance absorbs a certain amount of heat, its temperature increases according to the equation:
where
Q is the amount of heat absorbed
m is the mass of the substance
C is its specific heat capacity
is the increase in temperature of the substance
For the metal in this problem, we have:
m = 0.3 kg
Q = 9000 J
Therefore, its specific heat is:
Learn more about specific heat capacity:
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Explanation:
when an object speeds up,it has positive acceleration.
hope it helps....
The best and most correct answer among the choices provided by your question is the fourth choice or letter D.
<span>Atmosphere in a sealed space craft contains </span><span>pressurized atmospheric air available normally on earth.</span>
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It allows the current flowing through it to be controlled. It allows it to flow and it can prevent it from flowing. This saves electricity.