Answer:
v = 2000m/60s; v = 33.33 m/s (plus, in velocity direction is needed in answer, if given)
Explanation:
velocity = distance/time
Answer:
Car A has a velocity of 40 km/hr west.
Explanation:
The velocity of an object is a vector quantity. It has both magnitudes as well as direction.
Arrows are used to show direction.
Car A is moving towards west. Car B is moving towards east-south direction. Car C is moving towards South direction. Car E is moving towards North direction.
So, the correct option is (a) i.e. Car A has a velocity of 40 km/hr west.
Answer:
The tea is warming up us is because of process of convection.
Explanation:
The conduction is the process in which the heat transfers within the material like heating up metal rod.
The radiation can be defined transfer of energy from body in the form of particles or wave like radiation from nuclear bomb.
The convection is the process of heat transfer by the movement of warm gas or liquid in which warm air rise and cool air sink.
Here when tea when we swallow tea the motion of molecules in the tea rise and there is transfer of heat.
The oil<span> always </span>floats<span> to the top because it is less dense than </span>water<span>. </span>Oil<span> and </span>water <span>don't mix because </span>water<span> molecules are more attracted to each other than to </span>oil <span>molecules. Detergent molecules are attracted to both </span>water<span> and </span>oil<span>.</span>
