Explanation :
Telescope is an instrument which is used to magnify distant objects bright, consistent and large.
The function of an ideal telescope must be :
There are many types of Telescope like:
Hence, the correct option is (b) " It magnifies light received from distant objects ".
b. Large in quantity and not very dangerous.
c. Large in quantity and very dangerously radioactive. Eliminate
d. Small in quantity and very dangerously radioactive.
The answer is D. small in quantity and very dangerously radioactive.
It is greatest at 25% of the period length.
B.
It is greatest at the point where the arm meets the pivot point.
C.
It is greatest when the bob is at its maximum amplitude.
D.
It is greatest when the bob is in the rest position.
the answer will be true
Answer:
144 ft
Explanation:
h(t) = -16t² + 64t + 80
The maximum height is at the vertex. We can find the vertex of a parabola using -b / (2a):
t = -64 / (2×-16)
t = 2
The vertex is at 2 seconds. The height of the stone at this time is:
h(2) = -16(2)² + 64(2) + 80
h(2) = 144
The maximum height is 144 feet.
B. distance.
C. weight.
D. direction.
The Correct answer to this question for Penn Foster Students is: Direction
Answer : The temperature of water is,
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of thermometer =
= specific heat of water =
= mass of thermometer = 33.0 g
= mass of water = 149 g
= final temperature =
= initial temperature of thermometer =
= initial temperature of water = ?
Now put all the given values in the above formula, we get:
Therefore, the temperature of water is,