As per the question there are two physical quantities i.e scalar quantity and vector quantity.
A scalar is a physical quantity which requires only magnitude.It does not require any direction for it's complete specification.For instance we may take distance travelled,speed etc.
Unlike a scalar quantity,a vector quantity requires both magnitude as well as direction for it's complete specifications.For instance we may take displacement which is the shortest distance between two points,the velocity which is the speed in a given direction.
Hence a vector and scalar is differentiated by direction.
As per the question,the correct option will be the third option i.e C.
Carlita is right.As per her, both vector and scalar have magnitude,but only vectors have direction which is also true.
Answer: C) heat
Explanation: As law of conservation of energy applies to all the systems, which says the energy cannot be created nor destroyed, it can only be converted from one form to another.
The light bulb converts electrical energy into light and heat energy.
A) chemical energy is stored in the bonds.
B) Light is a form of electromagnetic radiation.
D) nuclear energy is stored in the nucleus of the atom.
Answer:
2.61
Explanation:
91.44/35=2.61257142857 or 2.61
Answer:
Explanation:
It is given that two identical masses is attached to the either end of the spring
with spring constant k
angular frequency of the system is given by
here
Thus
Answer:
.
Explanation:
Let and denote the velocity of this hockey player before and after stopping, respectively. The question states that and implies that since the hockey player has come to a stop.
The duration of this acceleration is .
Since the acceleration of this hockey player was constant, SUVAT equation would apply. In particular, the SUVAT equation gives the displacement of this hockey player during that of acceleration:
.
In other words, this hockey player would have travelled while stopping.