Answer:
No the angular and linear size will not be same for different objects bearing the same angular size and is dependent on the point of observation. The greater the distance between the observer and the object, the greater the difference between the angular and linear size.
Explanation:
The angular size is the ratio of two lengths namely
Here if the distance from the object is unity, the angular and linear size will be similar. However if the distance of observation is very large, the angular size for large bodies with large linear size will be very small.
An example in this regard is Sun.
The linear size of Sun, (the diameter) is 1.3927 million km. Which is very large. However as it is very far from earth, 147.44 million km, the angular size is very small.
it is given as
Now the same angular size can be of a tennis ball having a diameter of 10 cm , placed at around 10.6 m away.
Answer:
8.72*
N
Explanation:
force of attraction f = G m1m2/ r^2 = 
= 8.72* N
Answer:
Gran Telescopio Canarias
Explanation:
There are numerous giant telescopes all over the world which give us amazingly details data of the Universe. These work in various wavelengths. Talking about the telescopes which operates in visible wavelengths, the largest operational telescope will be Gran Telescopio Canarias. This telescope has an aperture of 10.4m. It is situated in Canary Island, Spain.
In future larger telescopes such as Thirty Meter Telescope and EELT will will make it look like a small telescope.
3.92N
Explanation:
Given mass:
Mass of bag = 400g
The mass of a substance is the amount of matter it contains.
Weight of a substance is the vertical force acting on a body in the presence of gravity.
Weight = mass x gravity
Since the mass of the bag is 400g;
Now we convert to kg
1000g = 1kg
400g = 
= 0.4kg
Weight of bag = 0.4kg x 9.8m/s²
Weight of bag = 3.92N
learn more:
Weight and mass brainly.com/question/5956881
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Answer:
(a) 1.11 m
(b) 4760 kgm/s
Explanation:
height of plane (h) = 370 m
velocity (v) = 56 m/s
mass (m) = 85 kg
force = 1.2 x 10^{5} N = 120,000 N
(a) We can get the minimum depth of snow from the equation below
force x depth = kinetic energy on impact
f x d = 0.5 x m x v^{2}
120000 x d = 0.5 x 85 x 56^{2}
d= (0.5 x 85 x 56^{2}) ÷ 120000 = 1.11 m
(b) the magnitude of impulse is equal to the momentum of the paratrooper and his gear
= m x v
= 85 x 56 = 4760 kgm/s
