Answer:
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Answer:
The radius of curvature is 979 meter
Explanation:
We have given velocity of the canon ball v = 98 m/sec
Acceleration due to gravity 
We know that at highest point of trajectory angular acceleration is equal to acceleration due to gravity
Acceleration due to gravity is given by 
, here v is velocity and r is radius of curvature
So 
r = 979 meter
So the radius of curvature is 979 meter
Optical squares are simple sighting instruments used to set out right angles. They can be provided either with mirrors or with one or two prisms. Because of practical difficulties in using squares with mirrors, they have been replaced by squares with prisms: "prismatic squares".
Answer:
The claim is false and violate the zeroth law of thermodynamics.
Explanation:
Zeroth law of thermodynamics refers to thermal equilibrium among elements. It states that elements which different temperatures will reach the same temperature at the endgame if they are close enough to interact each other. This temperaure is called <em>equilibrium temperature and it is always a intermediate value between the element with highest temperature and the element with the lowest one. So there is no way </em> a cup of cold coffee on a table can warm up to 80°C picking up energy from the surrounding air at 25°C because the cup can only reach a temperature closer to the surrounding air temperature which will be the equilimbrium temperature for that case.
Answer: December 19, 2009, NBA star Gilbert Arenas and a teammate on the Washington Wizards Javaris Crittenton got in a heated argument over a game, and made violent threated. After Crittenton challenged him to a fistfight, Arenas told his younger teammate he could not fight him, but he'd burn his SUV or shoot him in the face instead.
this overall had a negative affect on black history when it comes to sports or Gilbert
