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seropon [69]
3 years ago
12

What is the main function of a telescope?

Physics
1 answer:
Gwar [14]3 years ago
3 0

Answer:

Explanation:The main purpose of astronomical telescope is to make objects from outer space appear as bright, contrasty and large as possible. That defines its three main function: light gathering, resolution and magnification. These are the measure of its efficiency.

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g a mass of 1.3 kg is pushed horizontally against a massless spring with a spring constant of 58 n/m until the spring compresses
ExtremeBDS [4]

Answer: 1.102\ J

Explanation:

Given

Mass m=1.3\ kg

Spring constant k=58\ N/m

Compression in the spring x=19.5\ cm\ or\ 0.195\ m

When the mass leaves the spring, the elastic potential energy of spring is being converted into kinetic energy of mass i.e.

\Rightarrow \dfrac{1}{2}kx^2=\dfrac{1}{2}mv^2\\\\\Rightarrow \dfrac{1}{2}\cdot 58\cdot (0.195)^2=\dfrac{1}{2}mv^2\\\\\Rightarrow \dfrac{1}{2}mv^2=1.102\ J

The kinetic energy of the mass is 1.102 J.

5 0
3 years ago
Problem 28.3 Suppose that you are planning a trip in which a spacecraZ is to travel at a constant velocity for exactly six month
iragen [17]

Answer:

v = 0.999981c m/s

Explanation:

Using the time dilation equation

T = \frac{T_{0} }{\sqrt{1 - \frac{v^{2} }{c^{2} } } }

T = stationary time = 100 years

T₀ = 11/12 years = 0.917 years

v = speed of travel in the space = ?

c = speed of light = 3 * 10⁸ m/s

100 = \frac{0.917 }{\sqrt{1 - \frac{v^{2} }{(3*10^{8} )^{2} } } }\\

(0.917/100) ^{2} = 1 - \frac{v^{2} }{ 9 * 10^{16} }

v = 299987395.57 m/s

v = 2.99 * 10⁸ m/s

v = 0.999981c m/s

3 0
3 years ago
Balance N3+H2<br>balance CaCo3+HCl<br>balance K+Cl<br>​
anastassius [24]

Answer:

N3+3H2----->3NH2

I AM FROM INDIA PLS FOLLOW ME

5 0
3 years ago
A 550 N physics student stands on a bathroom scale in an elevator that is supported by a cable. The combined mass of student plu
mario62 [17]

Answer:

(a) The elevator has an acceleration of 2.14 m/s² and direction is downward

(b) The acceleration is a=2.14 m/s²

Explanation:

Let +y be upward direction

For Part (a)

The mass of student (whose weight is 550N) is:

ms=w/g

ms=550/9.8=56.1 kg

Apply ∑Fy=ma

n-m_{s}g=m_{s}a\\

Solve for acceleration a

a=\frac{n-m_{s}g}{m_{s}}\\ a=\frac{430N-550N}{56.1kg} \\a=-2.14m/s^{2}

The elevator has an acceleration of 2.14 m/s² and direction is downward

Part(b)

For the acceleration is the scale reads 670 N

For n=670N

So

a=\frac{n-m_{s}g}{m_{s}}\\ a=\frac{670N-550N}{56.1kg}\\ a=2.14m/s^{2}

3 0
4 years ago
If the sun's mass is about average, how many stars are there in the milky way galaxy? the mass of the sun is of the order of 103
ra1l [238]
Just assume that the sun has the average mass of all the stars
Then divide the mass of the galaxy by the mass of the sun. 
<span>10^30 has 30 zeroes after it. 10^42 has 42 zeroes.

The answer would have 12 zeroes which concludes a trillion stars. </span>
4 0
4 years ago
Read 2 more answers
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