1. becuase it is so hot that it could tan or be used to keep warm.
Answer:
-22.2 m/s²
Explanation:
The equation for position x for a constant acceleration a, time t and initial velocity v₀, initial position x₀:
(1) 
For rocket A the initial and final position: x = x₀= 0. Using these values in equation 1 gives:
(2) 
Solving for time t:
(3) 
The times for both rockets must be equal, since they start and end at the same location. Using equation 3 for rocket A and B gives:
(4) 
Solving equation 4 for acceleration of rocket B:
(5) 
Answer:
A combustion reaction is a major class of chemical reactions, commonly referred to as "burning." In the most general sense, combustion involves a reaction between any combustible material and an oxidizer to form an oxidized product. It usually occurs when a hydrocarbon reacts with oxygen to produce carbon dioxide and water. Good signs that you're dealing with a combustion reaction include the presence of oxygen as a reactant and carbon dioxide, water, and heat as products. Inorganic combustion reactions might not form all of those products but remain recognizable by the reaction of oxygen.
Explanation:
Answer:
B) Temperature, kinetic energy, and compressibility all increase.
Explanation:
The temperature increases, since the boiling point of water is greater than its melting point. The average kinetic energy of the molecules is proportional to their temperature, therefore, it also increases. Finally, solids are very difficult to compress, since their molecules are very close, while gases have very separate molecules, therefore, they are highly compressible.
Answer: 1.8m
Explanation:
Using the principle of moment to solve the question which states that the sum of clockwise moment is equal to the sum of anticlockwise moments.
The boy moves in the clockwise direction towards the pivot while the girl moves in the anticlockwise direction towards the pivot.
Since moment = force × perpendicular distance
CW moments = 60×1.5 = 90Nm
ACW moments = 50×x = 50x
Equating both moments to get 'x'
90 = 50x
x =9/5
x = 1.8m
This shows that the girl must sit 1.8m from the other side for equilibrium.:
