Answer: a network of several radio telescopes wired together
Explanation:
A radio interferometer combines signals of several radio telescopes which are used in astronomical observations simultaneously to simulate a discretely-sampled single telescope of very large aperture
Interferometer, an instrument that uses the interference patterns formed by waves to measure certain characteristics of the waves themselves or of materials that reflect, refract, or transmit the waves. Interferometers can also be used to make precise measurements of distance.
-6.98 × 10-^7 is the answer <3
<h2>
The balloon is moving when it is halfway down the building at 20.78 m/s.</h2>
Explanation:
We have equation of motion v² = u² + 2as
Initial velocity, u = 0 m/s
Acceleration, a = 9.81 m/s²
Displacement, s = 0.5 x 44 = 22 m
Substituting
v² = u² + 2as
v² = 0² + 2 x 9.81 x 22
v² = 431.64
v = 20.78 m/s
Velocity at 22 m = 20.78 m/s
The balloon is moving when it is halfway down the building at 20.78 m/s.
The range of a projectile can be found directly using:
R = (v²sin2∅) / g
v = √((98 x 9.81)/(sin(90)))
v = 31.0 m/s
Answer:
Downward
Explanation:
When the upper leg exerts a force on the lower leg and the combined center of gravity of both the legs lies at the center of the lower leg then the line of action of this force will be acting downwards.
- Like for any body which is placed on the other body is under the influence of gravity then the it will exert a force equal to its weight on the lower body in downward direction. Line of action of this force will be through the center of gravity of the upper body and the canter of gravity of both the bodies as a system will be the average their individual centers of the gravity.
