Answer:
1}can displacement be zero even when distance is not zero? Give example.
2}how can you get speed of an object from its distance time graph ?
3}how can you get distance of an object from its speed time graph ?
4}can a body has zero velocity and still acceleration? give example .
5}is it possible in straight line motion of particle having zero speed and a non zero velocity? explain .
Explanation:
Hi friend,1).yes,displacement can be zero even when distance is not zeroexample :- when a body travels in circular path , after covering a circle the distance cannot be zero,but its displacement is zero..2).by finding the slope of distance time graph,we can find the speed of the body.3).by finding the integrating of speed time graph ,we can find the distance.4).yes,a body can have zero velocity and still acceleration.example- in vertically upward projected body,at its highest point,the velocity becomes zero but still acceleration due to gravity acts on it 5).no its not possible ..when the speed is zero..its velocity will be zero
Answer:
Acceleration will be change at every instant of time
Explanation:
We have given that speed of the car at curve round is constant
We know that speed is scalier quantity which does nit depend on the direction of motion.
Velocity is vector quantity which depends on the direction of motion
As on curve round direction of motion is always changes so velocity is also changes and acceleration is rate of change of velocity
So acceleration of the car will also change.
<span>Colloid, in chemistry definition is a heterogenous
mixture, of one substance is different from another, when mixed, either of the
substance (particularly the solid one), is evenly mixed with each other. It
could clearly be seen when one mixes a solution in a suspension state because
it forms a cloudy solution, however, in like suspension, it does not settle at
the bottom of the mixture. Best example of this is milk. When you mix milk
powder to a hot water, the solution is mixed evenly however the color of the
water from transparent changes to milkish white.</span>
Answer: Decreases the transparency of the atmosphere to infrared light.
Explanation: Green House gases are gases such as Carbondioxide,Methane,Water Vapor etc which are present in the Atmosphere,they trap and emit heat in the form of radiations. Green house gases act like a barrier preventing some of the radiations especially of the IR(INFRA-RED) to leave the Earth,which eventually leads to increase in the overall Temperature of the Earth.
The higher the concentration of the Green house gases,the lesser the transparency of the Atmosphere to the Infrared radiation.
The reason why it relates to the newtons 3 laws of motion because the first law of motion states that every object will stay at rest unless it's moved by an unbalanced force which is your hand. The second one states that <span> the velocity of an object changes when it is subjected to an external force meaning it's used by the equation that is commonly used for which is F=M*A. The way it relates to the second law because you are adding force some way or another, the mass is the egg and the acceleration is the drop of the egg while it free falls. And the last one, for a reaction there is always an equal or opposite reaction and the opposite reaction is the floor because it's going against the egg causing it to crack. If it was with the egg, it would have a soft, smooth landing.</span>