Rhyolitic <span>magma causes powerful and explosive volcanic eruptions
so its b</span>
Answer:
Explanation:
Given
mass of object
Object is attached to the ceiling of an elevator by a rope
Suppose T is the Tension in the rope so
acceleration of the elevator (upward)
From Free Body diagram we can write as
The answer is behaviorism !! <3
Two dangerous elements can form a compound that is edible known as "NaCl salt".
<u>Explanation:</u>
Sodium and chlorine are two very dangerous elements. As the reaction between sodium and water is extremely violent and chlorine is a very toxic gas. But combination of these elements result into a harmless product with unique properties like it is edible and dissolves without exploding in water.
In sodium chloride reaction the atoms of sodium interact with chlorine atoms. Sodium will donate an electron (by becoming positively charged) to acceptor chlorine (which become negatively charged) as given in following reaction
As sodium and chlorine are very keen to achieve noble gas configuration by completing an octet on donating and accepting an electron respectively.
Answer:
A car moves up a hill at a constant velocity
Explanation:
Since the velocity is constant, the speed is also constant and so is the kinetic energy. However, total mechanical energy is sum of gravitational potential energy and kinetic energy, and the car is moving up the hill so its potential energy rises.
Thus, in the circumstances described the mechanical energy cannot be conserved.
The correct answer is A car moving up the hill with constant velocity.