Answer:
Pteropods are little mollusks (related to snails, slugs and squid) that drift around in ocean currents, feeding on nutrient-rich plankton. Their rich diet makes them delicious to many fish. Seals eat many fish, and sharks eat seals and fish, so there it is: not even 6 degrees of shark separation.
Explanation:
Answer:
False
Explanation:
Heat capacity;
The ability of absorbing the heat is know as heat capacity of the substance.In other words we can say that the ability to retain the heat without changing its temperature is known as heat capacity.
The specific heat of water (liquid) is 4.1813 KJ/kgK andf the specific heat of ammonia (liquid) is 4.7 KJ/kgK.
So we can say that the above given statement is False.
Therefore answer is --
False
Answer:
The time taken to complete her run is 1.9 hr.
Explanation:
Speed is a scalar quantity and it is defined as the ratio of distance covered to the time taken to cover that distance. As distance is also a scalar quantity, so the directions given in the problem can be ignored. Thus, the distance covered by the jogger is the sum of kilometers given in problem.
Distance covered = 6+5+4 = 15 km
And the speed is given as 8 km/hr.
So the time taken will be ratio of distance to speed.
So the jogger will take 1.9 hr to complete her run.
Answer:
option (d)
Explanation:
The minimum angle of inclination of the inclined plane from the horizontal such that the object placed on the inclined plane is just start sliding down.
The value of angle of repose is given by the
tan θ = μ
Where, θ be the angle between the horizontal plane and the inclined plane and μ be the coefficient of friction.
It is also called as the angle of sliding.
Answer:
Via, vibration.
Source generate vibration, and air molecules vibrate, so kinetics and potential energy transfer