El momento lineal de un coche que viaja hacia el norte a 20m/s es distinto al momento lineal del mismo auto viajando hacia el es
1 answer:
Explanation:
The momentum of any object is given by the product of mass and velocity with which it is moving i.e.
p = mv
Momentum is a vector quantity. It means we can resolve it into rectangular components.
If the car is moving with a speed of 20 m/s in North direction, its momentum is given by :
.....(1)
If the car is moving with a speed of 20 m/s in East direction, its momentum is given by :
....(2)
It is clear from equation (1) and (2) that the magnitude of momentum is same but the direction of momentum is different in both cases.
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Answer:
Because the light reflects multiple times until it gets to the Cassegrain focus.
Explanation:
The Cassegrain design can be seen in a reflecting telescope. In this type of design the light is collected by a concave mirror, and then intercepted by a secondary convex mirror, and sends it down to a central opening in the primary mirror (concave mirror), in which a detector is placed (Cassegrain focus)
Since, the light is reflected many times due to Cassegrain design, that leads to shorter telescopes.
