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.
Answer:
zero
Explanation:
For a solid conducting sphere, charges are present on the surface of the sphere due to a phenomenon known as electrostatic sheilding. This affects the charge present in the body and makes it zero. However, the electrostatic potential appears to be equal to the whole present point that shows on the surface. The surface of a spherical conducting solid sphere is known as an equipotential surface. Thus, the potential difference between the two opposite points on the surface of the sphere will also be zero.
Answer:
Neptune is approximately 41 times as far from the sun as Venus
Explanation:
Estimate = distance of Neptune from the sun ÷ distance of Venus from the sun = 4.5×10^9 ÷ 1.18×10^8 = 40.9 (approximately 41)
Answer:
Explanation:
mass (m1) = 1150 kg
mass (m2) = 1900 kg
impulse (J) = 200 N.s
With what relative speed do the two parts separate because of the detonation?
since both parts separate, their relative speed = speed of m1 + speed of m2
- speed of m1 =
= 
= 0.174 m/s
- speed of m2 = =
= 0.105 m/s - relative speed = 0.174 + 0.105 = 0.279 m/s
Answer:
his starting velocity was 18.297 ms⁻¹
Explanation:
v = u + at .................. (1)
Where
Final Velocity (v) = 0 ms⁻¹
Initial velocity (u) = ?
Acceleration (deceleration) (a) = -6.42 ms⁻²
time (t) = 2.85 s
Substituting all parameters into equation (1)
0 = u + (-6.42)2.85
0 = u + (-18.297)
0 = u - 18.297
18.297 = u
∴ the initial velocity was 18.297 ms⁻¹
